Sever?s disease is a painful condition of the heel affecting children, usually at the beginning of the growth spurt in early puberty. It is caused by inflammation at the growth plate at the back of the heel, adjacent to the Achilles tendon attachment. This is one of the most common causes of heel pain in school-aged children. Physically active children aged between eight and fourteen years old are most at risk of developing pain from Sever?s disease. It is common among children involved in soccer, little athletics, gymnastics, basketball and netball but can affect children involved in any running or jumping activity. Boys seem to be more commonly affected than girls.
Severs disease arises due to a traction of the Achilles Tendon from the heel bone or from excessive impact forces to the area during peak growing periods. Most children will present with one or many of the following backgrounds. Recent periods of rapid growth/changes of body mass/strength. Overuse, Multiple sporting clubs, multiple sports, high intensity of training. Poor footwear (insufficient heel height). Training errors. Tight surrounding muscles. Osseous growth proceeds that of the soft tissue. Poor biomechanics and posture (excessive pronation/flat feet).
Pain is usually felt at the back and side of the heel bone. Sometimes there may be pain at the bottom of the heel. The pain is usually relieved when the child is not active and becomes painful with sport. Squeezing the sides of the heel bone is often painful. Running and jumping make the symptoms worse. One or both heels can be affected. In more severe cases, the child may be limping.
Sever condition is diagnosed by detecting the characteristic symptoms and signs above in the older children, particularly boys between 8 and 15 years of age. Sometimes X-ray testing can be helpful as it can occasionally demonstrate irregularity of the calcaneus bone at the point where the Achilles tendon attaches.
Non Surgical Treatment
The following are different treatment options Rest and modify activity. Limit running and high-impact activity to rest the heel and lessen the pain. Choose one running or jumping sport to play at a time. Substitute low-impact cross-training activities to maintain cardiovascular fitness. This can include biking, swimming, using a stair-climber or elliptical machine, rowing, or inline skating. Reduce inflammation. Ice for at least 20 minutes after activity or when pain increases. Nonsteroidal anti-inflammatory drugs (NSAIDs) may also help. Stretch the calf. Increase calf flexibility by doing calf stretches for 30 to 45 seconds several times per day. Protect the heel. The shoe may need to be modified to provide the proper heel lift or arch support. Select a shoe with good arch support and heel lift if possible. Try heel lifts or heel cups in sports shoes, especially cleats. Try arch support in cleats if flat feet contribute to the problem. Take it one step at a time. Gradually resume running and impact activities as symptoms allow. Sever?s disease usually goes away when the growth plate (apophysis) matures, which should be by age 12 to 13 years in females and 13 to 14 years in males.
As with all overuse injuries, it is important to warm up sufficiently before you exercise and warm down afterwards. You should build up any alterations in the intensity of your training gradually, and never continue exercising with weakened or fatigued muscles. Replace any worn or tattered shoes, as in this condition they become useless for absorbing shock and protecting the feet.