Sever's disease
Sever's Disease, otherwise known as calcaneal apophysitis is an inflammation of the growth plate in the heel of growing children, typically adolescents. The condition presents as pain in the heel and is caused by repetitive stress to the heel and is thus particularly common in active children. It usually resolves once the bone has completed growth or activity is lessened.
Eponym
It is named for James Warren Sever (1878–1964), an American Orthopedic doctor, who characterized it in 1912. Dr Sever had "The Principles of Orthopaedic Surgery" published in 1940 by The Macmillan Company.
Symptoms
The most prominent symptom of Sever's disease is heel pain which is usually aggravated by physical activity such as walking, running or jumping.
The pain is localised to the posterior and plantar side of the heel over the calcaneal apophysis. Sometimes, the pain may be so severe that it may cause limping and interfere with physical performance in sports. External appearance of the heel is almost always normal, and signs of local disease such as edema, erythema (redness) are absent. The main diagnostic tool is pain on medial- lateral compression of the calcaneus in the area of growth plate, so called squeeze test. Foot radiographs are usually normal. Therefore the diagnosis of Sever's disease is primarily clinical.