Jump to content

Breast implant: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
m Reverted edits by 119.155.118.201 (talk) to last version by Dawnseeker2000
Line 260: Line 260:
==External links==
==External links==
{{Commons category|Breast implants}}
{{Commons category|Breast implants}}
* [http://www.funfok.com/breast-tips/get-bigger-boobs-without-surgery.html Get Bigger Boobs without Surgery]
* [http://www.funfok.com/breast-tips/tips-for-growing-breasts.html Tips for Growing Breasts]
* [http://www.funfok.com/breast-tips/make-your-boobs-look-bigger.html Make Your Boobs Look Bigger]
* [http://www.emedicine.com/plastic/topic134.htm Basics of implant based breast reconstruction (E-medicine)]
* [http://www.emedicine.com/plastic/topic134.htm Basics of implant based breast reconstruction (E-medicine)]
* [http://www.nap.edu/catalog/9602.html Institute of Medicine (IOM) Report on Silicone Implants]
* [http://www.nap.edu/catalog/9602.html Institute of Medicine (IOM) Report on Silicone Implants]

Revision as of 08:02, 29 November 2010

File:Breasts.jpg
Breast augmentation, before and after
Bilateral breast augmentation with submuscular placement of 350 cc saline impants through an inframmary fold
Chest X-ray showing bilateral breast implants.

A breast implant is a prosthesis used to alter the size and shape of a woman's breasts (known as breast augmentation, breast enlargement, mammoplasty enlargement, augmentation mammoplasty or the common slang term boob job) for cosmetic reasons, to reconstruct the breast (e.g. after a mastectomy or to correct congenital chest wall deformities), or as an aspect of male-to-female gender transition. A breast tissue expander is a temporary breast implant used during staged breast reconstruction procedures. According to the American Society of Plastic Surgeons, breast augmentation is the most commonly performed cosmetic surgical procedure in the United States. According to data collected by the American Society of Plastic Surgery, in 2007, 307,230 breast augmentation procedures were performed in the U.S., a 12% decrease compared to the previous year. This decrease has been associated with the financial challenges posed by a struggling economy. Despite the decrease, however, breast augmentation surgeries remained as the number one surgical cosmetic procedure performed in the U.S..[citation needed]

There are two primary types of breast implants: saline-filled and silicone-gel-filled implants. Saline implants have a silicone elastomer shell filled with sterile saline liquid. Silicone gel implants have a silicone shell filled with a viscous silicone gel. Several alternative types of breast implants had been developed, such as polypropylene string or soy oil, but these are no longer manufactured.

Pectoral implants are a related device used in cosmetic and reconstructive procedures of the male chest wall.

History

Implants have been used since at least 1895 to augment the size or shape of women's breasts. The earliest known implant was attempted by Vincenz Czerny, using a woman's own adipose tissue (from a lipoma, a benign growth, on her back).[1] Gersuny tried paraffin injections in 1889, with disastrous results. In the early to mid-1900s, a number of other substances were tried, including ivory, glass balls, ground rubber, ox cartilage, Terylene wool, gutta-percha, Dicora, polyethylene chips, polyvinyl alcohol-formaldehyde polymer sponge (Ivalon), Ivalon in a polyethylene sac, polyether foam sponge (Etheron), polyethylene tape (Polystan) or strips wound into a ball, polyester (polyurethane foam sponge) Silastic rubber, and teflon-silicone prostheses.[2] In recent history, various creams and medications have been used in attempts to increase bust size. Furthermore, Berson in 1945 and Maliniac in 1950 performed a flap-based augmentation by rotating the patient's chest wall tissue into the breast to add volume. Various synthetics were used throughout the 1950s and 1960s, including silicone injections, which an estimated 50,000 women received.[3] Development of silicone granulomas and hardening of the breasts were in some cases so severe that women needed to have mastectomies for treatment. Women sometimes seek medical treatment for complications up to 30 years after receiving this type of injection.[citation needed]

Indications

Breast implants are used primarily for:

  • primary reconstruction (to replace breast tissue that has been removed due to cancer or trauma or that has failed to develop properly due to a severe breast abnormality such as the tuberous breast deformity)
  • revision-reconstruction (revision surgery to correct or improve the result of an original breast reconstruction surgery)
  • primary augmentation (to increase breast size for cosmetic reasons)
  • revision-augmentation (revision surgery to correct or improve the result of an original breast augmentation surgery)

Patient characteristics

Patients seeking breast augmentation have been reported as commonly younger females.[4] Many of these patients have reported greater distress about their appearance in a variety of situations, and have endured teasing about their appearance.

Studies have identified a pattern (shared by many cosmetic surgery procedures) that suggest women who undergo breast implantation are slightly more likely to have undergone psychotherapy, have low levels of self-esteem, and have higher prevalences of depression, suicide attempts, and mental illness (including body dysmorphia[5]) as compared to the general population.[6]

Post-operative surveys on mental health and quality of life issues have reported improvement on a number of dimensions including: physical health, physical appearance, social life, self confidence, self esteem, and sexual function.[7][8][9][10] Longer term follow-up studies suggest these improvements may be transitory, with the exception of body esteem related to sexual attractiveness.[11] Overall, most patients report being satisfied long-term with their implants even when they have required re-operation for complications or aesthetic reasons.[7][12]

Holland is the country with most breast augmentation surgeries.[13] More than half of the women in the United States who undergo cosmetic surgery earn less than $25,000 annually.[13] National health care plans subsidize breast augmentation in Sweden, Holland, and elsewhere in Europe.[13]

Mental health

A 2007 Swedish and US longitudinal study found that women who get cosmetic breast implants are nearly three times as likely to commit suicide as other women. No notable increase was seen in the first 10 years after surgery, but 10 to 19 years after, risk was 4.5 times higher, and six times higher after 20 years, compared with the expected suicide rate.[14][15]

The same study found that women with breast implants also had a tripled risk of death from alcohol and drug use.[14][15] Seven studies have been made connecting breast implants to a higher rate of suicide.[16][17][18][19][20][21][22]

Researchers believe that breast implants themselves do not directly cause the higher suicide rate amongst the women who undergo the procedure. The hypothesis is that women with an inclination towards psychopathology (psychological problems) are more likely to get breast implants in the first place. For example, a Danish study found that eight percent of women who underwent cosmetic breast augmentation also had a history of psychiatric hospitalization before surgery.[19]

Most ethical surgeons screen patients prior to surgery and breast implants can have a positive impact on mental health as it correlates to self-esteem and sexual satisfaction. According to a study by Figueroa-Hass,[23] improvements in women's self-esteem and sexual satisfaction were directly attributed to their breast augmentation. Patients aged 21 to 57 years old showed an average increase in self-esteem from 20.7 to 24.9 on the 30-point Rosenberg scale. Further to the increase in self-esteem, a 78.6 percent increase was noted in sexual desire.

Procedure

The surgical procedure for breast augmentation takes approximately one to two hours. Variations in the procedure include the incision type, implant material, and implant pocket placement.

Incision types

Breast implants for augmentation may be placed via various types of incisions:

  • Inframammary – an incision is placed below the breast in the infra-mammary fold (IMF). This incision is the most common approach and affords maximum access for precise dissection and placement of an implant. It is often the preferred technique for silicone gel implants due to the longer incisions required. This method can leave slightly more visible or thicker scars.
  • Periareolar – an incision is placed along the areolar border. This incision provides an optimal approach when adjustments to the IMF position or mastopexy (breast lift) procedures are planned. The incision is generally placed around the inferior half, or the medial half of the areola's circumference. Silicone gel implants can be difficult to place via this incision due to the length of incision required (~ 5 cm) for access. As the scars from this method occur on the edge of the areola, they are often less visible than scars from inframammary incisions in women with lighter areolar pigment. There is a higher incidence of capsular contracture with this technique, and this incision causes the most problems with breast feeding, due to cutting milk ducts and nerves that lead to the nipple.
  • Transaxillary – an incision is placed in the armpit and the dissection tunnels medially. This approach allows implants to be placed with no visible scars on the breast, but is more likely to produce asymmetry of the inferior implant position. Subsequent revisions of transaxillary-placed implants usually require inframammary or periareolar incisions. Transaxillary procedures can be performed with or without an endoscope.
  • Transumbilical (TUBA)[24] - a less common technique where an incision is placed in the navel and dissection tunnels superiorly. This approach enables implants to be placed with no visible scars on the breast, but makes appropriate dissection and implant placement more difficult.[citation needed] Transumbilical procedures are performed bluntly, with or without an endoscope (tiny lighted video camera) to assist dissection. This technique is not appropriate for placing silicone gel implants due to potential damage of the implant shell if attempting insertion through the small 2 cm incision in the navel, and as those implants are pre-filled they cannot be passed through that incision.
  • Transabdominoplasty (TABA)[25] – procedure similar to TUBA, where the implants are tunneled up from the abdomen into bluntly dissected pockets while a patient is simultaneously undergoing an abdominoplasty procedure.

Types of implants

Saline implants

saline filled breast implants

Saline-filled breast implants were first manufactured in France in 1964, introduced by Arion[26] with the goal of being surgically placed via smaller incisions. Current saline devices are manufactured with thicker, room temperature vulcanized (RTV) shells than earlier generations of devices. These shells are made of a silicone elastomer and the implants are filled with salt water (saline) after the implant is placed in the body. Since the implants are empty when they are surgically inserted, the scar is smaller than is necessary for silicone gel breast implants (which are filled with silicone before the surgery is performed). A single manufacturer (Poly Implant Prosthesis, France) produced a model of pre-filled saline implants which has been reported to have higher failure rates in vivo.[27]

Saline-filled implants were most common implant used in the United States during the 1990s due to restrictions that existed on silicone implants, but were rarely used in other countries. Good to excellent results may be obtained, but as compared to silicone gel implants, saline implants are more likely to cause cosmetic problems such as rippling, wrinkling, and to be noticeable to the eye or the touch. Particularly for women with very little breast tissue, or for post-mastectomy breast reconstruction, silicone gel implants are considered as superior. In patients with more breast tissue in whom submuscular implant placement is used, saline implants can look very similar to silicone gel.

Silicone gel implants

Silicone gel-filled breast implants

Thomas Cronin and Frank Gerow, two Houston, Texas, plastic surgeons, developed the first silicone breast prosthesis with the Dow Corning Corporation in 1961. The first woman was implanted in 1962. Silicone implants are generally described in terms of five generations which segregate common characteristics of manufacturing techniques.

First generation

File:Original implant.jpg
Original Cronin-Gerow Implant from 1963. Note Dacron patch and anatomic "tear drop" shape.

The Cronin-Gerow implants were made of a tear drop shaped silicone rubber envelope (or sac), filled with a thick, viscous silicone gel with a Dacron patch (to reduce rotation of the implant) on the posterior shell.[28]

Second generation

In response to cosmetic surgeons' requests for softer and more lifelike implants, breast implants were redesigned in the 1970s with thinner, less cohesive gels and thinner shells. These implants had a greater tendency to rupture or "gel bleed" silicone through an intact implant shell, and complications such as capsular contracture were quite common. It was predominantly implants of this generation that were involved in the American class action-lawsuits against Dow-Corning and other manufacturers in the early 1990s.

Another development in the 1970s was a polyurethane foam coating on the implant shell which was very effective in diminishing capsular contracture by causing an inflammatory reaction that discouraged formation of fibrous tissue around the capsule. These implants were later briefly discontinued due to concern of potential carcinogenic breakdown products from the polyurethane.[29] A review of the risk for cancer from TDA by the FDA later concluded that the risk was so small so as not to justify recommending explantation of the devices from individual patients. Polyurethane implants are still used in Europe and South America, but no manufacturer has sought FDA approval for sale in the United States.[30] Second-generation implants also saw the introduction of various "double lumen" designs. These implants were essentially a silicone implant inside a saline implant. The double lumen was an attempt to provide the cosmetic benefits of gel in the inside lumen, while the outside lumen contained saline and its volume could be adjusted after placement. The failure rate of these implants is higher than for single lumen implants due to their more complex design. The contemporary versions of these devices ("Becker Implants") are used primarily for breast reconstruction.

Third & fourth generation

Third & fourth generation implants, from the mid 1980s, represented sequential advances in manufacturing principles with elastomer-coated shells to decrease gel bleed, and are filled with thicker, more cohesive gel. The increased cohesion of the gel filler reduced potential leakage of the gel compared to earlier devices and the more substantial shell improved durability as compared to 2nd generation implants. A variety of both round and tapered anatomic shapes are available from different implants in this group. The anatomic or shaped implants are uniformly impregnated with a textured surface to reduce rotation, while round devices are available in both smooth or textured surfaces.

Fifth generation

Evaluation of "gummy bear" or solid, high-cohesive, form-stable implants is in preliminary stages in the United States but these implants have been widely used since the mid 1990s in other countries. The semi-solid gel in these type of implants largely eliminates the possibility of silicone migration. Studies of these devices have shown significant potential improvements in safety and efficacy over the older implants with low rates of capsular contracture and rupture. [31][32][33]

US FDA approval

Silicone gel-filled breast implants were first introduced in the United States 1962 by Cronin and Gerow. As a response to reports of implant failure and allegations of resultant complications and illness, in 1988 the U.S. Food and Drug Administration (FDA) announced that all breast implants would be subsequently relabeled as class III medical devices, and called for data from manufacturers showing the safety and effectiveness of these devices.[34] In 1992, the FDA placed a moratorium on silicone gel breast implants for cosmetic purposes. The FDA concluded there was "inadequate information to demonstrate that breast implants were safe and effective." Access to silicone gel-filled breast implants continued to be allowed under controlled clinical studies for reconstruction after mastectomy, correction of congenital deformities, or replacement of ruptured silicone gel-filled implants due to medical or surgical reasons. Implant manufacturers were required to collect clinical trial data and were allowed distribution of the implants to a limited number of augmentation patients for these studies.[34] In mid-1992, the FDA approved an adjunct study protocol for silicone gel-filled breast implants for reconstruction and revision patients. That same year, silicone and breast implant manufacturer, Dow Corning, announced that it would no longer make five implant grades of silicone, but that it would continue to manufacture 45 other medical grades of silicone materials. Just three years later, in 1995, Dow Corning Corp., once the major manufacturer of silicone breast and other implants, faced 19,000 lawsuits, pushing it into bankruptcy.[34]

In 1997, the Department of Health and Human Services (HHS) began one of the most extensive research studies in medical history by appointing the Institute of Medicine of the National Academy of Science (IOM) to examine potential complications during or after silicone-based breast implant surgeries. After reviewing years of evidence and research concerning silicone gel-filled breast implants, the IOM found that "Evidence suggests diseases or conditions such as connective tissue diseases, cancer, neurological diseases or other systemic complaints or conditions are no more common in women with breast implants than in women without implants." Most individual studies and all systemic review studies have also subsequently failed to find a link between silicone breast implants and disease.[34]

In 1998, the FDA approved adjunct study protocols for silicone gel-filled breast implants for reconstruction and revision patients only and also approved, later that same year, the corporation's IDE study for silicone gel-filled breast implants for a limited number of augmentation, reconstruction, and revision patients.[34]

In 1999, the IOM released a comprehensive report on both saline-filled and silicone gel-filled breast implants entitled Safety of Silicone Breast Implants. The determination was that there was no evidence to suggest silicone or saline breast implants cause systemic health effects and that there was no new or novel health or safety issue associated with the use of either types of implants. The IOM concluded that local complications are "the primary safety issue with silicone breast implants", making a clear distinction between routine local complications and systemic health concerns.[34][35][36]

In 2000, the FDA granted approval of saline-filled breast implant PMAs, showing data on the types and rates of local complications experienced by patients.[37] “Despite complications experienced by some women, the majority of those women still in the Inamed Corporation and Mentor Corporation studies after three years reported being satisfied with their implants.”[34] Both PMAs were approved for breast augmentation to females of at least 18 years of age and for breast reconstruction.[38][39]

The manufacturers continued to improve their gel-filled products, developing more cohesive gel implant, and continued with their studies. On November 17, 2006, the FDA lifted its restrictions on the use of silicone gel-filled breast implants produced by the two manufacturers for breast reconstruction and for cosmetic breast augmentation. The approval was given with a number of conditions including a requirement to complete 10-year studies on women who have already received the implants and a 10 year study on the safety of the devices in 40,000 women. The post-approval studies will be closely monitored by the FDA.[40] The FDA warned that the implants are not without risk and that women receiving implants should be suggested to have periodic MRI exams to watch for any signs of rupture or leakage. It was also mandated that patients be given brochures explaining the risks.[34]

The FDA has set age limits with respect to who can get breast implants. For reconstruction purposes, silicone gel-filled and saline-filled breast implants are approved for women of all ages. For augmentation, however, saline-filled breast implants are approved for women 18 years of age and older and silicone gel-filled implants are approved for women 22 years of age and older [7]. The age minimum is different for saline-filled and silicone gel-filled implants because the two products entail different risks. Namely, with silicone gel-filled implants there is a risk of silent rupture, so frequent MRI monitoring is suggested [8]. Health ministries in other countries by contrast, do not endorse MRI screening of asymptomatic patients and suggest physical exam with or without ultrasound to be sufficient in most instances.

Currently the FDA has approved silicone gel-filled breast implants and over a million women around the world have already received these implants. Breast implants and breast augmentation surgery is now commonplace all over the world.

Implant pocket placement

File:Breast implants.png
Diagrams of cross sections of breast implants, subglandular (left) and submuscular (right)

The placement of implants is described in relation to the pectoralis major muscle.

  • Subglandular- implant between the breast tissue and the pectoralis muscle, in the retromammary space. This position closely resembles the plane of normal breast tissue and is felt by many to achieve the most aesthetic results. The subglandular position in patients with thin soft-tissue coverage is more likely to show ripples or wrinkles of the underlying implant. Capsular contracture rates may also be slightly higher with this approach.
  • Subfascial [41] - the implant is placed in the subglandular position, but underneath the fascia of the pectoralis muscle. The benefits of this technique are debated,[42] but proponents believe the fascial layer of tissue may help with coverage and sustaining positioning of the implant.
  • Subpectoral ("dual plane")[43] - the implant is placed underneath the pectoralis major muscle after releasing the inferior muscular attachments. As a result, the implant is partially beneath the pectoralis in the upper pole, while the lower half of the implant is in the subglandular plane. This is the most common technique in North America and achieves maximal upper implant coverage while allowing expansion of the lower pole. Animation or movement of the implants in the sub pectoral plane can be excessive to some patients.
  • Submuscular - the implant is placed below the pectoralis without release of the inferior origin of the muscle. Total muscular coverage may be achieved by releasing the lateral chest wall muscles (serratus and/or pectoralis minor) and sewn to the pectoralis major. This technique is most commonly used for maximal coverage of implants used in breast reconstruction.

Recovery

Depending on the level of activity required, patients are generally able to resume normal activity in approximately one week's time. Women who have their implants placed underneath the muscle (submuscular placement) will generally have a longer recovery time and experience slightly more pain due to the muscle being cut during surgery. Exercise and strenuous physical activity will often need to be avoided for up to six weeks.

During initial recovery arm movement is encouraged to help lessen the discomfort. Pain catheters have been shown to be safe and effective.[44][45] Scars from a breast augmentation surgery will last six weeks or longer and usually begin to fade several months after surgery.

Claims of systemic illness and disease

Since the early 1990s, a number of independent systemic comprehensive reviews have examined studies concerning links between silicone gel breast implants and systemic diseases. The consensus of these reviews is that there is no evidence of a causal link between the implantation of silicone breast implants and systemic disease.[46][47][48][49]

Thousands of women claim that they have become ill from their implants; complaints include neurological and rheumatological problems. Some studies have suggested that subjective and objective symptoms of women with implants may improve when their implants are removed.[50]

As studies have followed women with implants for a longer period of time, more data have become available on systemic diseases as well as autoimmune symptoms. Several large studies from the national health registry in Denmark found implant recipients no more likely to be diagnosed with an increased incidence of classic auto-immune symptoms as compared to women of the same age in the general population,[51] and that musculoskeletal symptoms were generally lower among women with implants compared with women with other cosmetic surgery and women in the general population.[52] Recent longitudinal follow-up of these patients has confirmed previously reported findings.[53]

Several studies have established that women who elect to undergo breast augmentation or other plastic surgery tend to be healthier and more affluent than the general population, prior to surgery and afterwards. For example, two large studies of plastic surgery patients found a decreased standardized mortality ratio in both breast implant and other plastic surgery patients, but an increased risk of respiratory cancer deaths in breast implant recipients compared to other forms of plastic surgery. Smoking was statistically controlled in one study and not in the other, but the authors speculated that there could potentially be differences in smoking that might contribute to the higher lung cancer deaths among women with implants.[54][55] Another large study with long-term follow-up of nearly 25,000 Canadian women with implants reported: "Findings suggest that breast implants do not directly increase mortality in women."[56]

In 2001 a study claimed an increase in fibromyalgia among women with extracapsular silicone gel leakage, compared to women whose implants were not broken or leaking outside the capsule.[57] This study was criticized as methodologically flawed, and such an association has not been repeated in a number of related studies,[58] and the US-FDA concluded "the weight of the epidemiological evidence published in the literature does not support an association between fibromyalgia and breast implants."[59]

While there is international consensus that silicone implants have not been shown to cause or worsen any systemic illness, excluding the possibility that a small group of patients may become ill through (as of yet) unknown mechanisms may prove difficult. Long term prospective follow up studies are being undertaken in the United States to further study this issue.[59]

Complications

Surgeries involving breast implants, whether for cosmetic or reconstructive surgery, carry risk common to many types of surgery. These include adverse reactions to anesthesia, post-operative bleeding (hematoma) or fluid collection (seroma), surgical site infection or breakdown, breast pain or alterations in sensation,[60][61][62] unfavorable scarring (6-7%),[60][61] interference with breast feeding, visible wrinkling, asymmetry, thinning of the breast tissue, and symmastia (disruption of the natural plane between breasts which is sometimes referred to as 'bread loafing'). Complications and reoperations related to surgeries with breast implants or tissue expanders can add significant long term costs to patients and health care systems.

Specific complications to indwelling breast implants that have received notable attention involve surveillance and treatment for implant rupture and the phenomena of capsular contracture.

Rupture

Ruptured silicone implant with removed capsule

Breast implants can potentially remain intact for decades in the body, but all such devices will fail at some point. When saline breast implants break, they often deflate quickly and can be easily removed. Prospective studies of saline-filled breast implants showed rupture/deflation rates of 3–5% at three years and 7–10% at 10 years for augmentation patients.[63] Among the suspected mechanisms for rupture are damage during implantation or other procedures, degradation of the implant shell, blunt or penetrating chest trauma, and in rare instances from the pressure of traditional mammograms.[64]

The age and design of the implant are the most important factors in rupture, but estimating ruptures rates of more contemporary devices has been difficult, as most previous reports[65] mixed heterogeneous groups of devices in non-randomized populations. The only available literature with longer term available MRI data on single lumen 3rd/4th generation silicone implants comes from Europe and has reported silent rupture rates of an implant at between 8% to 15% at or around a decade (or 15–30% of patients).[66][67][68] In 2009, patients followed in one arm of the core FDA clinical trials for primary breast augmentation reported rupture rates of 1.1% after six years followup[69]

The first series of MRI evaluation of the highly-cohesive (5th generation) gel implants suggests improved durability, with a rupture rate reported at 1% or less at a median age of six years.[70]

It has been suggested that clinical exams alone are inadequate to evaluate suspected rupture after a study reported that only 30% of ruptures in asymptomatic patients are accurately detected by experienced plastic surgeons, compared to 86% detected by MRIs [71] The US-FDA has recommended that MRIs be considered to screen for silent rupture starting at three years after implantation and then every two years thereafter.[60] Other countries have not endorsed routine MRI screening, and have taken the position that MRI should be reserved only for cases involving suspected clinical rupture or to confirm mammographic or ultrasound studies suggesting rupture.[49]

When silicone implants break they rarely deflate, and the silicone from the implant can leak out into the space around the implant. An intracapsular rupture can progress to outside of the capsule (extracapsular rupture), and both conditions are generally agreed to indicate the need for removal of the implant. Extracapsular silicone has the potential to migrate, but most clinical complications have appeared to be limited to the breast and axillae [72] in the form of granulomas (inflammatory nodules) and axillary lymphadenopathy [73] (enlarged lymph glands in the armpit area).[74] The specific risk and treatment of extracapsular silicone gel is still controversial.

Capsular contracture

Main article: Capsular contracture
High grade (Baker IV) capsular contracture in the right breast around a subglandular gel implant.

Capsules of tightly-woven collagen fibers form as an immune response around a foreign body (e.g. breast implants, pacemakers, orthopedic joint prosthetics), tending to wall it off. Capsular contracture occurs when the capsule tightens and squeezes the implant. This contracture is a complication that can be very painful and distort the appearance of the implanted breast. The exact cause of contracture is not known. However, some factors include bacterial contamination, silicone rupture or leakage, and hematoma.

Methods which have reduced capsular contracture include submuscular implant placement, using textured[75][76] or polyurethane-coated implants,[77] limiting handling of the implants and skin contact prior to insertion[78] and irrigation with triple-antibiotic solutions.[79]

Correction of capsular contracture may require surgical removal or release of the capsule, or removal and possible replacement of the implant itself. Closed capsulotomy (disrupting the capsule via external manipulation), a once common maneuver for treating hard capsules, has been discouraged as it can cause implant rupture. Nonsurgical methods of treating capsules include massage, external ultrasound,[80] treatment with leukotriene pathway inhibitors (Accolate, Singulair),[81][82] and pulsed electromagnetic field therapy.[83]

Platinum

Platinum is a catalyst used in the making of silicone implant polymer shells and other silicone devices used in medicine. The literature indicates that small amounts of platinum leaches (leaks) from these implants and is present in the surrounding tissue. The FDA reviewed the available studies from the medical literature on platinum and breast implants in 2002 and concluded there was little evidence suggesting toxicity from platinum in implant patients.[84]

In 2006, researchers published a controversial study that claimed to identify the previously undocumented presence of toxic platinum oxidative states in vivo.[85] A letter from the editors of the publishing journal, Analytical Chemistry, subsequently expressed concern over the research's experimental design and urged the journal's readers to "use caution in evaluating the conclusions drawn in the paper."[86] The FDA reviewed this study and the existing literature, concluding that the body of existing research did not support their findings, and that the platinum in new implants is likely not ionized and therefore would not represent a significant risk to women.[87]

Implants and mammography

The presence of radio-opaque breast implants may interfere with the sensitivity of screening mammography. Specialized radiographic techniques where the implant is manually displaced (Eklund views) may improve this somewhat, but approximately 1/3 of the breast is still not adequately visualized with a resultant increase in false-negative mammograms.[88] A number of studies looking at breast cancers in women with implants have found no significant difference in stage of disease at time of diagnosis, and prognosis appears to be similar in both groups with augmented patients not a higher risk for subsequent cancer recurrence or death.[89][90] Conversely, the use of implants for reconstruction after mastectomy for breast cancer also appears not to have a negative effect on cancer-related mortality.[91]

An observation that patients with implants are more often diagnosed with palpable tumors (but not larger ones) suggest that tumors of equal size may be more easily palpated in augmented patients, and this may compensate somewhat for the potential impairment of mammography.[77] This palpability is due to thinning of the breast by compression, innately smaller breasts a priori, and that the implant serves as a base against which the mass may be differentiated.[92]

The presence of a breast implant does not influence the ability for breast conservation (lumpectomy) surgery for women who subsequently develop breast cancer, and does not interfere with delivery of external beam radiation (XRT) treatments that may be required.[93] Fibrosis of breast tissue after XRT is common and an increase in capsular contracture rates would be expected.

Implants and breastfeeding

Women with implants are able and encouraged to breastfeed.[94][95][96] Implants may cause difficulties in nursing, and some procedures, particular periareolar incisions and subglandular placement are associated with greater difficulties;[96] thus a woman of childbearing years is advised to discuss breastfeeding with a surgeon prior to surgery.

A particular safety concern is whether the implant may leak into breast milk, and whether this causes health problems for the nursing infant. Saline is salt water, and silicone is used in colic drops, and considered indigestible – both substances are chosen to be neutral and are widely present in the environment, and on this basis some doctors argue that there "should be no absolute contraindication to breastfeeding by women with silicone breast implants".[97][98] Regarding studies, some small-scale non-random studies (meaning "patients came with complaints, which may have many sources", not "doctors performed random tests") in the early 1990s – at the early stages of the controversy over silicone implants – indicated possible complications from breastfeeding with silicone implants; these were not corroborated by large-scale randomized studies.[98]

Difficulties in breastfeeding arise if functional tissue is affected, particularly if milk ducts or major nerves are cut, or if milk glands are otherwise damaged or pressured. Duct and nerve damage is most caused by periareolar incisions, which cut tissue near the nipple, while other incisions (inframammary, transaxillary, TUBA) avoid nipple tissue;[96] if aware of concerns, periareolar incisions can be done so as to reduce damage to ducts and nerves. Milk glands are most affected by subglandular (over-the-muscle) implants and large implants, which cause pressure on the glands; submuscular and smaller implants cause fewer problems.[96] However, many women have been able to successfully breastfeed with periareolar incisions and subglandular placement.

All women planning to breastfeed are advised [by whom?] to consult with breastfeeding professionals (lactation consultants), which are of particular assistance to woman with or considering implants, who can advise on what to expect. Women considering implants and breastfeeding are encouraged to discuss this with their surgeon to allow them to make choices so as to minimize damage to functional breast tissue and facilitate breastfeeding.

Other breast surgeries, such as breast lifts or nipple surgery, may also cause difficulties, while breast reduction surgery is more likely to cause nursing difficulties, due to removal of breast tissue. [citation needed]

Repair or revision surgery

Regardless of the type of implant, it is likely that women with implants will need to have one or more additional surgeries (re-operations) over the course of their lives.[citation needed] Breast implants do not last forever. According to studies[which?] conducted by implant companies for the U.S. FDA, they sometimes only last a few years. Most common indications for re-operations have included major or minor complications, capsular contracture treatment, and replacement of ruptured/deflated implants.[64] Re-operation rates are predictably more frequent in breast reconstruction cases due to the dramatic changes in the soft-tissue envelope and anatomical breast borders after mastectomy, particularly when patients have received adjuvant XRT.[64] Breast cancer patients also frequently undergo staged procedures for reconstruction of the nipple-areola complex (NAC) and symmetry procedures on the opposite breast.

It appears that re-operation rates in cosmetic cases can be improved by more carefully matching individual patients' soft-tissue characteristics to the type and size of implants used. Using appropriate device selection and proper technique, re-operation rates at up to seven years followup have been reported as low as 3%,[99][100] as compared with the 20 percent re-operation rate at 3 years in the most recent Food and Drug Administration study.

Controversy

Since the early 1990s, nearly a dozen comprehensive systemic reviews have been commissioned by various governments' health ministries to examine the alleged links between silicone gel breast implants and systemic diseases. A clear consensus has emerged from these independent scientific reviews that there is no clear evidence of a causal link between the implantation of silicones and connective tissue disease. The conclusions of these reviews are summarized:

Year Country Systemic Review Group Conclusions
1991–1993 United Kingdom Independent Expert Advisory Group (IEAG) The IEAG concluded that there was no evidence of an increased risk of connective tissue disease in patients who had undergone silicone gel breast implantation and that ther case for changing practice or policy in the UK in respect of breast implantation
1996 USA US Institute of Medicine (IOM)[101] Not "sufficient evidence for an association of silicone gel- or saline-filled breast implants with defined connective tissue disease".
1996 France Agence Nationale pour le Developpement de l'Evaluation Medicale (ANDEM)[102] "Nous n’avons pas observé de connectivite ni d’autre pathologie auto-immune susceptible d’être directement ou indirectement induite par la présence d’un implant mammaire en particulier en gel de silicone..." (We did not observe connective tissue diseases to be directly or indirectly associated with (in particular) silicone gel breast implants)
1997 Australia Australia’s Therapeutic Devices Evaluation Committee review "current high quality literature suggest that there is no association between breast implants and connective tissue disease-like syndromes (atypical connective tissue diseases)"[103]
1998 Germany Germany’s Federal Institute for Medicine and Medical Products concluded that "silicone breast implants neither cause auto-immune diseases nor rheumatic diseases and have no disadvantageous effects on pregnancy, breast feeding capability or the health of children who are breast fed. There is no scientific evidence for the existence of silicone allergy, silicone poisoning, atypical silicone diseases or a new silicone disease"[104]
2000 USA Review request of the United States Federal Judiciary[105] "no evidence of an association between...silicone-gel-filled breast implants specifically, and any of the individual CTDs, all definite CTDs combined, or other autoimmune or rheumatic conditions."
2000 European Union European Committee on Quality Assurance & Medical Devices in Plastic Surgery (EQUAM) "Additional medical studies have not demonstrated any association between silicone-gel filled breast implants and traditional auto-immune or connective tissue diseases, cancer, nor any other malignant disease....EQUAM continues to believe that there is no scientific evidence that silicone allergy, silicone intoxication, atypical disease or a 'new silicone disease' exists."[106]
2001 United Kingdom UK Independent Review Group (UK-IRG) "there is no evidence of an association with an abnormal immune response or typical or atypical connective tissue diseases or syndromes"[107]
2001 USA Review for court appointed National Science Panel [108] The panel evaluated both established and undifferentiated connective tissue diseases and concluded that there was no evidence of an association between breast implants and these CTDs.
2003 Spain STOA Report to the European Parliament Petitions Committee Regarding new scientific evidence, the currently available information shows that there is not solid evidence linking SBI to severe diseases (such as breast cancer or connective tissue diseases).[109]

Thousands of women have still claimed that they have become ill from their implants. Complaints include systemic fungus, neurological and rheumatological problems.

As studies have followed women with implants for a longer period of time, more information has been made available to assess these issues. A 2004 Danish study, reported that women who had breast implants for an average of 19 years were no more likely to report an excess number of rheumatic symptoms than control groups.[51] A large study of plastic surgery patients found a decreased standardized mortality ratio in both breast implant and other plastic surgery patients, but a relatively increased risk of lung cancer deaths in breast implant recipients compared to other forms of plastic surgery. The authors attributed this to differences in smoking rates.[110] Another large study of nearly 25,000 Canadian women with implants recently reported a 43 percent lower rate of breast cancer compared with the general population and a lower-than-average risk of developing cancer of any kind.[56]

See also

References

  1. ^ Czerny V (1895). "Plastischer Ersatz der Brusthus durch ein Lipoma". Zentralbl Chir. 27: 72.
  2. ^ Bondurant S, Ernster V, Herdman R (eds); Committee on the Safety of Silicone Breast Implants (1999). Safety of Silicone Breast Implants. Institute of Medicine. p. 21. ISBN 0-309-06532-1.{{cite book}}: CS1 maint: multiple names: authors list (link)
  3. ^ Anderson N (1997). "Lawsuit Science: Lessons from the Silicone Breast Implant Controversy". New York Law School Law Review. 41 (2): 401–7.
  4. ^ Brinton L, Brown S, Colton T, Burich M, Lubin J (2000). "Characteristics of a population of women with breast implants compared with women seeking other types of plastic surgery". Plast Reconstr Surg. 105 (3): 919–27, discussion 928–9. doi:10.1097/00006534-200003000-00014. PMID 10724251.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. ^ Crerand CE,; et al. (2006). "Body dysmorphic disorder and cosmetic surgery". Plast Reconstr Surg. 118 (July): 1672–1802. doi:10.1097/01.prs.0000242500.28431.24. PMID 17102719. {{cite journal}}: Explicit use of et al. in: |author= (help)
  6. ^ Sarwer DB,; et al. (2003). "Body image concerns of breast augmentation patients". Plast Reconstr Surg. 112 (July): 83–90. doi:10.1097/01.PRS.0000066005.07796.51. PMID 12832880. {{cite journal}}: Explicit use of et al. in: |author= (help)
  7. ^ a b Young VL; et al. (1994). "The efficacy of breast augmentation: breast size increase, patient satisfaction, and psychological effects". Plast Reconstr Surg. 94 (Dec): 958–69. doi:10.1097/00006534-199412000-00009. PMID 7972484. {{cite journal}}: Explicit use of et al. in: |author= (help)
  8. ^ Chahraoui K,; et al. (2006). "Aesthetic surgery and quality of life before and four months postoperatively". J Long-Term Effects Medical Implants. 51 (3): 207–210. doi:10.1016/j.anplas.2005.07.010. PMID 16181718. {{cite journal}}: Explicit use of et al. in: |author= (help)
  9. ^ Cash TF; et al. (2002). "Women's psychosocial outcomes of breast augmentation with silicone gel-filled implants: a 2-year prospective study". Plast Reconstr Surg. 109 (May): 2112–21. doi:10.1097/00006534-200205000-00049. PMID 11994621. {{cite journal}}: Explicit use of et al. in: |author= (help)
  10. ^ Figueroa-Haas CL (2007). "Effect of breast augmentation mammoplasty on self-esteem and sexuality: a quantitative analysis". Plast Surg Nurs. 27 (Mar): 16–36. doi:10.1097/01.PSN.0000264159.30505.c9. PMID 17356451. {{cite journal}}: Unknown parameter |doi_brokendate= ignored (|doi-broken-date= suggested) (help)
  11. ^ "Important Information for Women About Breast Augmentation with Inamed Silicone Gel-Filled Implants" (PDF). 2006. {{cite journal}}: Cite journal requires |journal= (help)
  12. ^ HandelN; Cordray, T; Gutierrez, J; Jensen, JA; et al. (2006). "A long-term study of outcomes, complications, and patient satisfaction with breast implants". Plast Reconstr Surg. 117 (Mar): 757–67. doi:10.1097/01.prs.0000201457.00772.1d. PMID 16525261. {{cite journal}}: Explicit use of et al. in: |author= (help)
  13. ^ a b c Wilson, T. D. (2002). "Pharaonic Circumcision Under Patriarchy and Breast Augmentation Under Phallocentric Capitalism: Similarities and Differences". Violence Against Women. 8: 495. doi:10.1177/10778010222183189.
  14. ^ a b "Breast implants linked with suicide in study". Reuters. 2007-08-08.
  15. ^ a b Manning, Anita (2007-08-06). "Breast implants linked to higher suicide rates". USA Today. Retrieved 2010-04-26.
  16. ^ Brinton LA et al. (2001) Mortality among augmentation mammoplasty patients. Epidemiology, 12.
  17. ^ Koot VC et al. (2003)Total and cause specific mortality among Swedish women with cosmetic breast implants: a prospective study. BMJ 326.
  18. ^ Pukkala E, et al. (2003) Causes of death among Finnish women with cosmetic breast implants, 1971-2001. Ann Plast Surg, 51.
  19. ^ a b Jacobsen PH (2004) Mortality and suicide among Danish women with cosmetic breast implants. Arch Intern Med, 164.
  20. ^ Villeneuve PJ et al. (2006) Mortality among Canadian women with cosmetic breast implants. Am J Epidemiol, 164.
  21. ^ Brinton LA et al. (2006) Mortality rates among augmentation mammoplasty patients: an update. Epidemiology, 17.
  22. ^ National Plastic Surgery Procedural Statistics, 2006. Arlington Heights, III, American Society of Plastic Surgeons, 2007
  23. ^ [1]
  24. ^ Johnson GW, Christ JE. (1993). "The endoscopic breast augmentation: the transumbilical insertion of saline-filled breast implants". Plast Reconstr Surg. 92 (5): 801–8. PMID 8415961.
  25. ^ Wallach SG. (2004). "Maximizing the use of the abdominoplasty incision". Plast Reconstr Surg. 113 (1): 411–7. doi:10.1097/01.PRS.0000091422.11191.1A. PMID 14707667.
  26. ^ Arion HG (1965). "Retromammary prosthesis". C R Soc Fr Gynecol. 5.
  27. ^ Stevens WG, Hirsch EM, Stoker DA, Cohen R. (2006). "In vitro deflation of prefilled saline breast implants". Plast Reconstr Surg. 118 (2): 347–9. doi:10.1097/01.prs.0000227674.65284.80. PMID 16874200.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  28. ^ Cronin TD, Gerow FJ (1963). "Augmentation mammaplasty: a new "natural feel" prosthesis". Excerpta Medica International Congress Series. 66: 41.
  29. ^ Luu HM, Hutter JC, Bushar HF (1998). "A physiologically based pharmacokinetic model for 2,4-toluenediamine leached from polyurethane foam-covered breast implants". Environ Health Perspect. 106 (7). Environmental Health Perspectives, Vol. 106, No. 7: 393–400. doi:10.2307/3434066. PMC 1533137. PMID [http://www.ehponline.org/members/1998/106p393-400luu/luu-full.html Full text 9637796 [http://www.ehponline.org/members/1998/106p393-400luu/luu-full.html Full text]]. {{cite journal}}: Check |pmid= value (help); External link in |pmid= (help)CS1 maint: multiple names: authors list (link)
  30. ^ Hester TR Jr, Tebbetts JB, Maxwell GP (2001). "The polyurethane-covered mammary prosthesis: facts and fiction (II): a look back and a "peek" ahead". Clin Plast Surg. 28 (3): 579–86. PMID 11471963.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  31. ^ Brown MH, Shenker R, Silver SA (2005). "Cohesive silicone gel breast implants in aesthetic and reconstructive breast surgery". Plast Reconstr Surg. 116 (3): 768–79, discussion 780–1. doi:10.1097/01.prs.0000176259.66948.e7. PMID 16141814.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  32. ^ Fruhstorfer BH, Hodgson EL, Malata CM (2004). "Early experience with an anatomical soft cohesive silicone gel prosthesis in cosmetic and reconstructive breast implant surgery". Ann Plast Surg. 53 (6): 536–42. doi:10.1097/01.sap.0000134508.43550.6f. PMID 15602249.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  33. ^ Heden P, Jernbeck J, Hober M (2001). "Breast augmentation with anatomical cohesive gel implants: the world's largest current experience". Clin Plast Surg. 28 (3): 531–52. PMID 11471959.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  34. ^ a b c d e f g h FDA Breast Implant Consumer Handbook - 2004
  35. ^ NAP report
  36. ^ NAP consumer report
  37. ^ FDA study Archived 2008-01-13 at the Wayback Machine
  38. ^ FDA approval
  39. ^ FDA approval
  40. ^ "FDA Approves Silicone Gel-Filled Breast Implants". FDA. Retrieved 2008-07-01.
  41. ^ Graf RM; et al. (2003). "Subfascial breast implant: a new procedure". Plast Recon Surg. 111 (2): 904–8. doi:10.1097/01.PRS.0000041601.59651.15. PMID 12560720. {{cite journal}}: Explicit use of et al. in: |author= (help)
  42. ^ Tebbetts JB (2004). "Does fascia provide additional, meaningful coverage over a breast implant?". Plast Recon Surg. 113 (2): 777–9. doi:10.1097/01.PRS.0000104516.13465.96. PMID 14758271.
  43. ^ Tebbetts T (2002). "A system for breast implant selection based on patient tissue characteristics and implant-soft tissue dynamics". Plast Recon Surg. 109 (4): 1396–409. doi:10.1097/00006534-200204010-00030. PMID 11964998.
  44. ^ Pacik, P.T. "Pain Control in Augmentation Mammaplasty: Safety and Efficacy of Indwelling Catheters in 644 Consecutive Patients." Aesthetic Surgery Journal, 28:279-284, May/June 2008
  45. ^ Pacik, P.T. "Pain Control in Augmentation Mammaplasty Using Indwelling Catheters in 687 Consecutive Patients: Data Analysis." Aesthetic Surgery Journal, 28:631-641, November/December 2008
  46. ^ Therapeutic Goods Administration (2001). Breast Implant Information Booklet (PDF) (4th ed.). Australian Government. ISBN 0-642-73579-4.
  47. ^ European Committee on Quality Assurance and Medical Devices in Plastic Surgery (2000-06-23). "Consensus Declaration on Breast Implants" (PDF). Archived from the original (PDF) on December 30, 2006. Retrieved 2007-05-04.
  48. ^ "Silicone Gel Breast Implant Report Launched - No Epidemiological Evidence For Link With Connective Tissue Disease - Independent Review Group". 1998-07-13. Retrieved 2007-05-04.
  49. ^ a b "Expert Advisory Panel on Breast Implants: Record of Proceedings". HealthCanada. 2005-09-29. Retrieved 2007-05-04.
  50. ^ Vasey FB, Zarabadi SA, Seleznick M, Ricca L (2003). "Where there's smoke there's fire: the silicone breast implant controversy continues to flicker: a new disease that needs to be defined". J Rheumatol. 30 (10): 2092–4. PMID 14528500.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  51. ^ a b Breiting VB, Holmich LR, Brandt B, Fryzek JP, Wolthers MS, Kjoller K, McLaughlin JK, Wiik A, Friis S (2004). "Long-term health status of Danish women with silicone breast implants". Plastic and Reconstructive Surgery. 114 (1): 217–226. doi:10.1097/01.PRS.0000128823.77637.8A. PMID 15220596.{{cite journal}}: CS1 maint: multiple names: authors list (link) Cite error: The named reference "Breiting2004" was defined multiple times with different content (see the help page).
  52. ^ Kjoller K, Holmich LR, Fryzek JP, Jacobsen PH, Friis S, McLaughlin JK, Lipworth L, Henriksen TF, Hoier-Madsen M, Wiik A, Olsen JH (2004). "Self-reported musculoskeletal symptoms among Danish women with cosmetic breast implants". Plastic Ann Plast Surg. 52 (1): 1–7. doi:10.1097/01.sap.0000101930.75241.55. PMID 14676691.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  53. ^ Fryzek JP, Holmich L, McLaughlin JK, Lipworth L, Tarone RE, Henriksen T, Kjoller K, Friis S (2007). "A Nationwide Study of Connective Tissue Disease and Other Rheumatic Conditions Among Danish Women With Long-Term Cosmetic Breast Implantation". Ann Epidemiol. 17 (5): 374. doi:10.1016/j.annepidem.2006.11.001. PMID 17321754.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  54. ^ Brinton LA, Lubin JH, Murray MC, Colton T, Hoover RN (2006). "Mortality rates among augmentation mammoplasty patients: an update". Epidemiology. 17 (2): 162–9. doi:10.1097/01.ede.0000197056.84629.19. PMID 16477256.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  55. ^ McLaughlin JK, Lipworth L, Fryzek JP, Ye W, Tarone RE, Nyren O (2006). "Long-term cancer risk among Swedish women with cosmetic breast implants: an update of a nationwide study". J Natl Cancer Inst. 98 (8): 557–60. doi:10.1093/jnci/djj134. PMID 16622125.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  56. ^ a b Villenueve PJ; et al. (2006). "Mortality among Canadian Women with Cosmetic Breast Implants". Am J Epidemiol. 164 (4): 334. doi:10.1093/aje/kwj214. PMID 16777929. {{cite journal}}: Explicit use of et al. in: |author= (help); Unknown parameter |month= ignored (help) Cite error: The named reference "Villenueve2006" was defined multiple times with different content (see the help page).
  57. ^ Brown SL, Pennello G, Berg WA, Soo MS, Middleton MS (2001). "Silicone gel breast implant rupture, extracapsular silicone, and health status in a population of women". J Rheumatol. 28 (5): 996–1003. PMID [http://www.fda.gov/cdrh/breastimplants/extracapstudy.html FDA Summary 11361228 [http://www.fda.gov/cdrh/breastimplants/extracapstudy.html FDA Summary]]. {{cite journal}}: Check |pmid= value (help); External link in |pmid= (help)CS1 maint: multiple names: authors list (link)
  58. ^ Lipworth L, Tarone RE, McLaughlin JK. (2004). "Breast implants and fibromyalgia: a review of the epidemiologic evidence". Ann Plast Surg. 52 (3): 284–7. doi:10.1097/01.sap.0000116024.18713.28. PMID 15156983.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  59. ^ a b "Diseases". FDA Breast Implant Consumer Handbook - 2004. 2004-06-08. Retrieved 2007-05-04.
  60. ^ a b c "Important Information for Women About Breast Augmentation with INAMED Silicone-Filled Breast Implants" (PDF). 2006-11-03. Retrieved 2007-05-04.
  61. ^ a b "Important Information for Augmentation Patients About Mentor MemoryGel Silicone Gel-Filled Breast Implants" (PDF). 2006-11-03. Retrieved 2007-05-04.
  62. ^ "Saline-Filled Breast Implant Surgery: Making An Informed Decision (Mentor Corporation)". FDA Breast Implant Consumer Handbook - 2004. 2004-01-13. Retrieved 2007-05-04.
  63. ^ Walker PS; et al. (2009). "Natrelle saline-filled breast implants: a prospective 10-year study". Aesthet Surg J. 29 (1): 19–25. doi:10.1016/j.asj.2008.10.001. PMID 19233001. {{cite journal}}: Explicit use of et al. in: |author= (help)
  64. ^ a b c "Local Complications". FDA Breast Implant Consumer Handbook - 2004. 2004-06-08. Retrieved 2007-05-04.
  65. ^ Brown SL, Middleton MS, Berg WA, Soo MS, Pennello G (2000). "Prevalence of rupture of silicone gel breast implants revealed on MR imaging in a population of women in Birmingham, Alabama". AJR Am J Roentgenol. 175 (4): 1057–64. PMID 11000165.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  66. ^ Holmich LR; et al. (2003). "Incidence of silicone breast implant rupture". Arch Surg. 138 (7): 801–6. doi:10.1001/archsurg.138.7.801. PMID 12860765. {{cite journal}}: Explicit use of et al. in: |author= (help)
  67. ^ Heden P; et al. (2006). "Prevalence of rupture in inamed silicone breast implants". Plast Reconstr Surg. 118 (2): 303–8. doi:10.1097/01.prs.0000233471.58039.30. PMID 16874191. {{cite journal}}: Explicit use of et al. in: |author= (help)
  68. ^ "FDA summary of clinical issues (MS Word document)".
  69. ^ Cunningham, B; et al. (2009). "Safety and effectiveness of Mentor's MemoryGel implants at 6 years". Plast Reconstr Surg. 33 (3): 440–4. doi:10.1007/s00266-009-9364-6. PMID 19437068. {{cite journal}}: Explicit use of et al. in: |author= (help)
  70. ^ Heden P; et al. (2006). "Style 410 cohesive silicone breast implants: safety and effectiveness at 5 to 9 years after implantation". Plast Reconstr Surg. 118 (6): 1281–7. doi:10.1097/01.prs.0000239457.17721.5d. PMID 17051096. {{cite journal}}: Explicit use of et al. in: |author= (help)
  71. ^ Holmich LR, Fryzek JP, Kjoller K, Breiting VB, Jorgensen A, Krag C, McLaughlin JK (2005). "The diagnosis of silicone breast-implant rupture: clinical findings compared with findings at magnetic resonance imaging". Ann Plast Surg. 54 (6): 583–9. doi:10.1097/01.sap.0000164470.76432.4f. PMID 15900139.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  72. ^ Holmich LR; et al. (2004). "Untreated silicone breast implant rupture". Plast Reconstr Surg. 114 (1): 204–14. doi:10.1097/01.PRS.0000128821.87939.B5. PMID 15220594. {{cite journal}}: Explicit use of et al. in: |author= (help)
  73. ^ Katzin, William E, Ceneno, Jose A, Feng, Lu-Jean; et al. (2001). "Pathology of Lymph Nodes From Patients With Breast Implants: A Histologic and Spectroscopic Evaluation" (—Scholar search). American Journal of Surgical Pathology. 29 (4): 506–511. PMID 15767806. {{cite journal}}: Explicit use of et al. in: |author= (help); External link in |format= (help)CS1 maint: multiple names: authors list (link) [dead link]
  74. ^ "Study of Rupture of Silicone Gel-filled Breast Implants (MRI Component)". FDA Breast Implant Consumer Handbook - 2004. 2000-05-22. Retrieved 2007-05-04.
  75. ^ Barnsley GP; Sigurdson, LJ; Barnsley, SE (2006). "Textured surface breast implants in the prevention of capsular contracture among breast augmentation patients: a meta-analysis of randomized controlled trials". Plast Reconstr Surg. 117 (7): 2182–90. doi:10.1097/01.prs.0000218184.47372.d5. PMID 16772915.
  76. ^ Wong CH, Samuel M, Tan BK, Song C. (2006). "Capsular contracture in subglandular breast augmentation with textured versus smooth breast implants: a systematic review". Plast Reconstr Surg. 118 (5): 1224–36. doi:10.1097/01.prs.0000237013.50283.d2. PMID 17016195.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  77. ^ a b Handel N; et al. (2006). "Long-term safety and efficacy of polyurethane foam-covered breast implants". Aesth. Surg Journal. 26 (3): 265–74. doi:10.1016/j.asj.2006.04.001. PMID 19338905. {{cite journal}}: Explicit use of et al. in: |author= (help); Unknown parameter |month= ignored (help) Cite error: The named reference "Handel2006" was defined multiple times with different content (see the help page).
  78. ^ Mladick RA (1993). ""No-touch" submuscular saline breast augmentation technique". Aesth. Surg Journal. 17 (3): 183–92. doi:10.1007/BF00636260. PMID 8213311.
  79. ^ Adams WP jr.; et al. (2006). "Enhancing patient outcomes in aesthetic and reconstructive breast surgery using triple antibiotic breast irrigation: six-year prospective clinical study". Plast Reconstr Surg. 117 (1): 30–36. doi:10.1097/01.prs.0000208306.79104.18. PMID 16404244. {{cite journal}}: Explicit use of et al. in: |author= (help)
  80. ^ Planas J; Cervelli, V; Planas, G (2001). "Five-year experience on ultrasonic treatment of breast contractures". Aesthetic Plast Surg. 25 (2): 89–93. doi:10.1007/s002660010102. PMID 11349308.
  81. ^ Schlesinger SL, wt al (2002). "Zafirlukast (Accolate): A new treatment for capsular contracture". Aesthetic Plast Surg. 22 (4): 329–336.
  82. ^ Scuderi N; et al. (2006). "The effects of zafirlukast on capsular contracture: preliminary report". Aesthetic Plast Surg. 30 (5): 513–20. doi:10.1007/s00266-006-0038-3. PMID 16977359. {{cite journal}}: Explicit use of et al. in: |author= (help)
  83. ^ Silver H (1982). "Reduction of capsular contracture with two-stage augmentation mammaplasty and pulsed electromagnetic energy (Diapulse therapy)". Plast Reconstr Surg. 69 (5): 802–8. doi:10.1097/00006534-198205000-00013. PMID 7071225.
  84. ^ Arepelli S; et al. (2002). "Allergic reactions to platinum in silicone breast implants". J Long-Term Effects Medical Implants. 12 (4): 299–306. PMID 12627791. {{cite journal}}: Explicit use of et al. in: |author= (help)
  85. ^ Lykissa E.D. and Maharaj S.V.M. (2006). "Total Platinum Concentration and Platinum Oxidation States in Body Fluids, Tissue, and Explants from Women Exposed to Silicone and Saline Breast Implants by IC-ICPMS". Anal. Chem. 78 (9): 2925. doi:10.1021/ac0514016. PMID 16642977. (due publication May 2006). Retrieved 2006-04-06. {{cite journal}}: Unknown parameter |month= ignored (help)
  86. ^ "Dubious Breast Implant Study: Doubts now surround study claiming to have found high levels of platinum in women with silicone breast". July 31, 2006.
  87. ^ "FDA Backgrounder on Platinum in Silicone Breast Implants". Food and Drug Administration.
  88. ^ Handel, N., Silverstein, M. J., Gamagami, P., Jensen, J. A., and Collins, A. (1992). "actors affecting mammographic visualization of the breast after augmentation mammaplasty". JAMA. 268 (14): 1913–17. doi:10.1001/jama.268.14.1913. PMID 1404718.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  89. ^ Clark CP 3rd, Peters GN, O'Brien KM. (1993). "Cancer in the augmented breast. Diagnosis and prognosis". Cancer. 72 (7): 2170–4. doi:10.1002/1097-0142(19931001)72:7<2170::AID-CNCR2820720717>3.0.CO;2-1. PMID 8374874.{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
  90. ^ Skinner KA, Silberman H, Dougherty W, Gamagami P, Waisman J, Sposto R, Silverstein MJ. (2001). "Breast cancer after augmentation mammoplasty". Ann Surg Oncol. 8 (2): 138–44. doi:10.1007/s10434-001-0138-x. PMID 11258778.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  91. ^ Le GM, O'Malley CD, Glaser SL, Lynch CF, Stanford JL, Keegan TH, West DW. (2005). "Breast implants following mastectomy in women with early-stage breast cancer: prevalence and impact on survival". Breast Cancer Res. 7 (2): R184–93. doi:10.1186/bcr974. PMC 1064128. PMID 15743498.{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: unflagged free DOI (link)
  92. ^ Cunningham B (2006). "Breast cancer diagnosis and prognosis in augmented women- Discussion". Plast Reconstr Surg. 118: 594–5. doi:10.1097/01.prs.0000233047.87102.8e. PMID 16932163.
  93. ^ SChwartz GF; et al. (2006). "Consensus Conference on Breast Conservation". JACAS. 203 (2): 198–207. doi:10.1016/j.jamcollsurg.2006.04.009. PMID 16864033. {{cite journal}}: Explicit use of et al. in: |author= (help)
  94. ^ Breastfeeding after Breast Surgery, La Leche League, contains numerous references.
  95. ^ Breastfeeding and Breast Implants, Selected Bibliography April 2003, LLLI Center for Breastfeeding Information
  96. ^ a b c d Inorganic Milk: Can Kendra Wilkinson breast-feed her baby even though she has implants?, Christopher Beam, Slate.com, December 11, 2009
  97. ^ Berlin, C. M. Silicone breast implants and breast-feeding. Pediatrics 1994; 94:546-49.
  98. ^ a b Silicone Breast Implants and Breastfeeding, Cheston M. Berlin, Jr. MD, Hershey Medical Center, Hershey, PA, from Breastfeeding Abstracts, February 1996, Volume 15, Number 3, pp. 17-18.
  99. ^ Tebbets JB (2006). "Out points" criteria for breast implant removal without replacement and criteria to minimize reoperations following breast augmentation". Plast Reconstr Surg. 114 (5): 1258–62. PMID 15457046. {{cite journal}}: Unknown parameter |month= ignored (help)
  100. ^ Tebbets JB (2006). "Achieving a zero percent reoperation rate at 3 years in a 50-consecutive-case augmentation mammaplasty premarket approval study". Plast Reconstr Surg. 118 (6): 1453–7. doi:10.1097/01.prs.0000239602.99867.07. PMID 17051118. {{cite journal}}: Unknown parameter |month= ignored (help)
  101. ^ Brinton LA, Malone KE, Coates RJ, Schoenberg JB, Swanson CA, Daling JR, Stanford JL (1996). "Breast enlargement and reduction: results from a breast cancer case-control study". Plast Reconstr Surg. 97 (2): 269–75. doi:10.1097/00006534-199602000-00001. PMID 8559808.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  102. ^ [2]
  103. ^ [3]
  104. ^ "German Society for Senology, Declaration of Consensus for the Security of Silicone Breast Implants-September 24, 1998". 1998. {{cite journal}}: Cite journal requires |journal= (help)
  105. ^ Janowsky EC, Kupper LL, Hulka BS (2000). "Meta-analyses of the relation between silicone breast implants and the risk of connective-tissue diseases". N Engl J Med. 342 (11): 781–90. doi:10.1056/NEJM200003163421105. PMID 10717013.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  106. ^ [4] Archived 2005-12-27 at the Wayback Machine
  107. ^ [5] [dead link]
  108. ^ Tugwell P, Wells G, Peterson J, Welch V, Page J, Davison C, McGowan J, Ramroth D, Shea B (2001). "Do silicone breast implants cause rheumatologic disorders? A systematic review for a court-appointed national science panel". Arthritis Rheum. 44 (11): 2477–84. doi:10.1002/1529-0131(200111)44:11<2477::AID-ART427>3.0.CO;2-Q. PMID 11710703.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  109. ^ [6] [dead link]
  110. ^ Brinton LA, Lubin JH, Murray MC, Colton T, Hoover RN (2006). "Mortality rates among augmentation mammoplasty patients: an update". Epidemiology. 17 (2): 162–9. doi:10.1097/01.ede.0000197056.84629.19. PMID 16477256.{{cite journal}}: CS1 maint: multiple names: authors list (link)
Wikimedia Commons has media related to Breast implants.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Breast_implant&oldid=399484120"