Sever?s Disease is one of the most common overuse injuries affecting children during their secondary growth spurts and is described as a self-limiting condition resolving naturally with skeletal maturity 1. It is suggested to be caused by progressive microtrauma to the bone-cartilage interface in the calcaneal apophysis partly due to large traction forces in the Achilles tendon. The current standard treatment consists mainly of rest, and waiting for skeletal maturity.
Severs disease is often associated with a rapid growth spurt. As the bones get longer, the muscles and tendons become tighter as they cannot keep up with the bone growth. The point at which the achilles tendon attaches to the heel becomes inflamed and the bone starts to crumble (a lot like osgood schlatters disease of the knee). Tight calf muscles may contribute as the range of motion at the ankle is reduced resulting in more strain on the achilles tendon. Sever’s disease is the second most common injury of this type which is known as an apophysitis.
Most children with Sever’s complain of pain in the heel that occurs during or after activity (typically running or jumping) and is usually relieved by rest. The pain may be worse when wearing cleats. Sixty percent of children’s with Sever’s report experiencing pain in both heels.
Radiography. Most of the time radiographs are not helpful because the calcaneal apophysis is frequently fragmented and dense in normal children. But they can be used to exclude other traumas. Ultrasonography. could show the fragmentation of secondary nucleus of ossification of the calcaneus in severs?s disease. This is a safe diagnostic tool since there is no radiation. This diagnostic tool can also be used to exclude Achilles tendinitis and/or retrocalcaneal bursitis.
Non Surgical Treatment
Please realize that the disorder may last only a couple of weeks to as long as 1-2 years. The treatment plan as prescribed by your doctor MUST be adhered to closely, and the activity level of the child must be controlled during the early stages of treatment. All jumping and running sports, such as basketball, trampoline, volleyball, tennis, soccer, etc., must be eliminated as part of the initial treatment. Once the child has improved and the pain has subsided, a rigid stretching program must then be implemented.
Exercises that help to stretch the calf muscles and hamstrings are effective at treating Sever’s disease. An exercise known as foot curling, in which the foot is pointed away from the body, then curled toward the body in order to help stretch the muscles, has also proven to be very effective at treating Sever’s disease. The curling exercise should be done in sets of 10 or 20 repetitions, and repeated several times throughout the day.