Sever?s disease is also known as calcaneal apophysitis, which is a medical condition that causes heel pain In one or both feet. The disease is known to affect children between the ages of 8 and 14. Sever?s disease occurs when part of the child?s heel known as the growth plate (calcaneal epiphysis) is attached to the Achilles tendon. This area can suffer injury when the muscles and tendons of the growing foot do not keep pace with bone growth. Therefore, the constant pain which one experiences at the back of the heel will make the child unable to put any weight on the heel. The child is then forced to walk on their toes. Toe gait- develops in which the child must change the way they walk to avoid placing weight on the heel. This can lead to other problems as well in the future.
Contraction of the calf muscles along with the rapid growth of the leg bone (tibia), decreases ankle motion and increases strain on the heel area. This puts strain on the Achilles tendon. Injury results from repetitive pulling through the heel bone by the Achilles and the traction forces from the plantar fascia.
In Sever?s disease, heel pain can be in one or both heels. It usually starts after a child begins a new sports season or a new sport. Your child may walk with a limp. The pain may increase when he or she stands on tiptoe. Your child?s heel may hurt if you squeeze both sides toward the very back. This is called the squeeze test. Your provider may also find that your child?s heel tendons have become tight.
The doctor may order an x-ray because x-rays can confirm how mature the growth center is and if there are other sources of heel pain, such as a stress fracture or bone cyst. However, x-rays are not necessary to diagnose Sever?s disease, and it is not possible to make the diagnosis based on the x-ray alone.
Non Surgical Treatment
The treatment of Sever's disease should be individualized. The most important first steps in the treatment of Sever's disease are activity modification (including rest and sometimes crutches) and good shoes. Further treatment may include icing to decrease pain around the calcaneal apophysis, stretching and strengthening exercises, shoe orthotics or medications to relieve pain. Rarely, a removable cast is necessary to completely rest the foot.