Severs disease or calcaneal apophysitis causes heel pain usually in growing children between age nine and fourteen. It occurs as a result of disturbance during the final development of the heel growth plate. During this time the achilles tendon is pulling strongly on the heel bone and this excessive force can cause inflammation and pain.
Apart from age, other factors that may contribute to developing Sever?s disease include physical activity, any form of exercise that is weight bearing through the legs or stresses the soft tissue can exacerbate the pain of the disease, External factors, for example, running on hard surfaces or wearing inappropriate shoes during sport Overuse injury, very active children may repeatedly but subtly injure the bones, muscles and tendons of their feet and ankles. In time, the accumulated injuries cause symptoms.
A few signs and symptoms point to Sever?s disease, which may affect one or both heels. These include pain at the heel or around the Achilles tendon, Heel pain during physical exercise, especially activities that require running or jumping, worsening of pain after exercise, a tender swelling or bulge on the heel that is sore to touch, calf muscle stiffness first thing in the morning, limping, a tendency to tiptoe.
Low-grade inflammation of the calcaneal apophysis cannot be seen on x-ray. Therefore, although x-rays are often done to rule out bony injuries in children with Sever's disease these x-rays are usually normal. Advanced Sever's disease can be seen on x-ray but usually the problem is treated before it reaches this point. Other diagnostic tests, such as bone scans or MRI's, are not usually required in typical cases of Sever's disease. These, or other tests, may be required to rule out other conditions, such as stress fractures of the calcaneus or other bony abnormalities that can mimic Severs disease.
Non Surgical Treatment
The primary method of treating Sever?s disease is taking time off from sports and other physical activities to alleviate the pressure on the heel bone. During the healing period, your child?s doctor may also recommend physical therapy or any type of exercise that involves stretching and strengthen leg muscles and tendons. Wrapping ice in a towel and placing it under the child?s heel will also help to alleviate and reduce pain and swelling.