Sever disease, first described in 1912, is a painful inflammation of the calcaneal apophysis. It is classified with the child and adolescent nonarticular osteochondroses. (The other disease in this group is Iselin disease, which is inflammation of the base of the fifth metatarsal.) The etiology of pain in Sever disease is believed to be repetitive trauma to the weaker structure of the apophysis, induced by the pull of the tendo calcaneus (Achilles tendon) on its insertion. This results in a clinical picture of heel pain in a growing active child, which worsens with activity. Sever disease is a self-limited condition; accordingly, no known complication exists from failure to make the correct diagnosis.
One of the most common causes of heel pain in adolescents, Sever's disease is an overuse injury to the growth plate of the calcaneus (heel). It is commonly seen in growing, active children 8-12 years of age. Soccer players, gymnasts, and children who do any sort of running or jumping activity have an increased risk of developing Sever's disease. Occurring in one or both feet, Sever?s disease occurs at the back of the heel (also known as the apophysis or the insertion of the Achilles tendon).
The pain is at the heel or around the Achilles tendon. This is felt commonly during exercise, particularly activities involving running or jumping. The back of the heel may also be tender to touch and there may be localised swelling. There may be stiffness in the calf muscles first thing in the morning and you may notice limping or a tendency to tiptoe.
Physical examination varies depending on the severity and length of involvement. Bilateral involvement is present in approximately 60% of cases. Most patients experience pain with deep palpation at the Achilles insertion and pain when performing active toe raises. Forced dorsiflexion of the ankle also proves uncomfortable and is relieved with passive equinus positioning. Swelling may be present but usually is mild. In long-standing cases, the child may have calcaneal enlargement.
Non Surgical Treatment
Ice the heel(s) well after exercise (until the area is cold and numb!) Stretch hamstring and calf muscles 2-3 times daily (exercises below) REST when pain becomes persistent or moderate (even if it means skipping games or practices.) Anti-inflammatory medication such as ibuprofen. If symptoms persist, your child may need to see a physical therapist for additional exercises, and/or an orthopedist for othotics or temporary casting/crutches if pain is severe. Sever?s disease is self-recovering, meaning that it will go away on its own when the heels are rested or when the bone is through growing. The condition is not expected to create any long-term disability, and expected to subside in 2-8 weeks. However, pain can recur, for example at the start of a new sports season, several times if it is not taken care of.
The old adage, "An once of prevention is worth a pound of cure," is most appropriate when trying to prevent the effects of Sever's Disease. If this condition is not prevented, or treated in its earliest stages, it may cause the child to stop certain sports activities until the growth plate has fused and matured (this usually occurs around the age of 16 years old). Long Term Treatment and Prevention must be directed towards protecting the growth plate at the back of the heel during a child's growing years. Being aware of the following best does this. If the child is very active in sports that require repetitive and exertive activities, then the parents must be vigilant when it comes to the child's gait, watching to see if he or she is limping, walking on their toes, or complaining of heel pain when weight-bearing. These may be "early warning signs" of Sever's Disease. Along with these signs, if your child has any of the Predisposing Hereditary Factors listed above, the chances of Sever's Disease occurring increased.