Severs disease is by far the most common cause of heel pain in young children, the condition commonly occurs in kids around the age of 10-15 years. Severs is a traction apophysitis in which inflammation of the calcaneal apophysis (growth plate) occurs as a result of overuse or micro trauma. As mentioned severs disease is caused by micro trauma and over use, this can include excessive foot pronation (foot rolling in), tight calf muscles, increase in sporting activities and inappropriate footwear. These all put extra sheering forces on the growth plate leading to aggravation and resultant pain. Signs and symptoms of this include pain on squeezing of the heel, absence of swelling and redness, child describing pain as a dull ache, limping and pain with increased activity.
Having flatfeet or very pronated feet can make one prone to Sever's disease. But also patient?s that have a very high arch foot structure tend to have a very high shock and high impact heel strike. This also puts extra stress on the heel and apophysis.
The most prominent symptom of Sever?s disease is heel pain which is usually aggravated by physical activity such as walking, running or jumping. The pain is localised to the posterior and plantar side of the heel over the calcaneal apophysis. Sometimes, the pain may be so severe that it may cause limping and interfere with physical performance in sports. External appearance of the heel is almost always normal, and signs of local disease such as edema, erythema (redness) are absent. The main diagnostic tool is pain on medial- lateral compression of the calcaneus in the area of growth plate, so called squeeze test. Foot radiographs are usually normal. Therefore the diagnosis of Sever?s disease is primarily clinical.
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 runs or jumps. He or she may have a tendency to tiptoe. Your child's heel may hurt if you squeeze both sides toward the very back. This is called the squeeze test. Your doctor may also find that your child's heel tendons have become tight.
Non Surgical Treatment
Once diagnosed, there is a list of treatment options available to begin the recovery process. Unfortunately due to the nature of the condition it will often be a reoccurring condition until closure of the growth plates of the heel and elongation of the soft tissue structures. However with appropriate education, correct management of symptoms and prevention strategies, Severs disease can be well managed by the individual and their parents.