Severs? disease usually presents with pain in either one or both of a sufferer?s heels. The area can be sore or tender, particularly first thing in the morning or after squeezing. Because the pain is focussed on the heel, an important part of the foot that makes contact with the ground through virtually all movement, sufferers often have to limp to alleviate their discomfort. The pain of Severs? disease is at its worst after any exertion that involves contact between a heel and the ground, particularly strenuous exercise like running or sport. The condition is caused by the wear and tear of structures in the heel, most significantly the heel bone and any attached tendons. Severs? disease is prevalent in young children who are extremely active, particularly as the heel and its attached tendons are still growing in the age group the condition most commonly affects (7-14).
There are many contributing factors that cause strain across the growth plate, making your child prone to developing Sever?s disease. These include repeated minor trauma to the growth plate from running or jumping sports, tight calf or hamstring muscles, rapid growth spurts can lead to the leg muscles becoming tight, increasing tension on the growth plate, tight Achilles tendon, the Achilles tendon attaches to the back of the heel adjacent to the growth plate, poor foot posture, may increase the strain on the growth plate, footwear with a very low heel pitch (eg soccer boots), unsupportive or unstable footwear with poor shock absorption at the heel, running or playing sport on hard surfaces.
Symptoms include complaints of pain or tenderness in the heel (or heels), discomfort when heel is squeezed, limping, and more severe pain after walking, running or playing sports. Sever?s disease is directly related to overuse of the bone and tendons in the heel. This can come from playing sports or anything that involves lots of heel movements and hard shoes such as cleats. It can be associated with starting a new sport, or the start of a new season. It occurs more commonly in children who pronate (feet roll inward), and involves both heels in more than half of patients.
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 decrease ankle dorsiflexion, abnormal hind foot motion eg overpronation or supination, tight calf muscles, excessive weight-bearing activities eg running.
Non Surgical Treatment
Occasionally, an orthotic may need to be prescribed for temporary or long-term correction of their foot biomechanics (eg flat feet or high arches). During the acute phase of Sever's disease a small heel rise or shock-absorbing heel cup placed under the heel pad of your child's foot may help to ease the symptoms. Your podiatrist or physiotherapist can assess your child's arch and guide you in the best management of your child's condition. We recommend that your child should never go barefooted during the painful stages of Sever's disease.
The surgeon may select one or more of the following options to treat calcaneal apophysitis. Reduce activity. The child needs to reduce or stop any activity that causes pain. Support the heel. Temporary shoe inserts or custom orthotic devices may provide support for the heel. Medications. Nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, help reduce the pain and inflammation. Physical therapy. Stretching or physical therapy modalities are sometimes used to promote healing of the inflamed issue. Immobilization. In some severe cases of pediatric heel pain, a cast may be used to promote healing while keeping the foot and ankle totally immobile. Often heel pain in children returns after it has been treated because the heel bone is still growing. Recurrence of heel pain may be a sign of calcaneal apophysitis, or it may indicate a different problem. If your child has a repeat bout of heel pain, be sure to make an appointment with your foot and ankle surgeon.