Sever?s disease (also known as calcaneal apophysitis) is a type of bone injury in which the growth plate in the lower back of the heel, where the Achilles tendon (the heel cord that attaches to the
growth plate) attaches, becomes inflamed and causes pain. Sever?s disease is the most common cause of heel pain in children, especially those who exercise or play sports on a regular basis.
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.
The typical clinical presentation is an active child (aged 9-10 years) who complains of pain at the posterior heel that is made worse by sports, especially those involving running or jumping. The
onset is usually gradual. Often, the pain has been relieved somewhat with rest and consequently has been patiently monitored by the patient, parents, coaches, trainers, and family physicians, in the
expectation that it will resolve. When the pain continues to interfere with sports performance and then with daily activities, further consultation is sought. It should be kept in mind that failure
to instruct patients and parents that continual pain, significant swelling or redness, and fever are not signs of Sever disease and therefore require further evaluation could result in failure to
diagnose a condition with much more serious long-term consequences.
Sever?s disease can be diagnosed based on your history and symptoms. Clinically, your physiotherapist will perform a "squeeze test" and some other tests to confirm the diagnosis. Some children suffer
Sever?s disease even though they do less exercise than other. This indicates that it is not just training volume that is at play. Foot and leg biomechanics are a predisposing factor. The main factors
thought to predispose a child to Sever?s disease include a decrease in ankle dorsiflexion, abnormal hind foot motion eg overpronation or supination, tight calf muscles, excessive weight-bearing
activities eg running.
Non Surgical Treatment
Sever?s disease treatment should be based on eliminating pain and restoring normal foot and leg biomechanics. As with most soft tissue injuries the initial treatment is Rest, Ice, and Protect. In the
early phase you?ll most likely be unable to walk pain-free. Our first aim is to provide you with some active rest from pain-provoking activities. "No Pain. No Gain." does not apply in Sever's
disease. If it hurts your child is doing too much exercise. Your child should reduce or cease any activity that causes heel pain. Ice is a simple and effective modality to reduce your pain and
swelling. Please apply for 20-30 minutes each 2 to 4 hours during the initial phase or when you notice that your injury is warm or hot. Most children can tolerate paracetamol as a pain reducing
medication. Check with your doctor. To support and protect your heels, you may need to be wear shock absorbing heel cups or a soft orthotic. Kinesio foot taping may help to provide pain relief.
With proper care, your child should feel better within 2 weeks to 2 months. Your child can start playing sports again only when the heel pain is gone. Your doctor will let you know when physical
activity is safe.