Sever’s disease, is a musculoskeletal condition occurring in adolescence that symptomatically manifests as posterior heel pain during ambulation. Often participation in physical activity is severely limited resulting in frustration for children and parents alike. Conservative treatment options have included rest, abstinence from athletic activity, heel lifts, foot orthotic devices, ice, and calf-stretching exercise. The authors are proposing arch taping as an additional viable treatment option for controlling heel pain during athletic and other weight-bearing activities in patients with Sever’s disease.
The large calf muscles attach to the heel via a large tendon called the Achilles tendon (See image below). The function of this tendon is to transmit forces produced by the calf muscles to the heel bone. In children, the portion of the heel bone into which the Achilles tendon inserts is separated from the bulk of the heel bone by a growth plate. This growth plate enables bone growth to occur. However, it also represents a site of weakness in the bone. Forcible and repeated contraction of the calf muscles can injure the growth plate. This commonly occurs during a period of rapid growth where the muscles and tendons become tighter as the bones grow. This leads to increased pulling of the calf muscles and Achilles tendon on the heel bone and growth plate.
The most obvious sign of Sever’s disease is pain or tenderness in one or both heels, usually at the back. The pain also might extend to the sides and bottom of the heel, ending near the arch of the foot. A child also may have these related problems, swelling and redness in the heel, difficulty walking, discomfort or stiffness in the feet upon awaking, discomfort when the heel is squeezed on both sides, an unusual walk, such as walking with a limp or on tiptoes to avoid putting pressure on the heel. Symptoms are usually worse during or after activity and get better with rest.
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
Orthotics or special shoe inserts can also be used to cushion the heel and reduce pain. Physical Therapy. If avoiding physical activities fails to clear up Sever?s disease Genesis Orthopedics & Sports Medicine may proceed with physical therapy. Physical therapy strengthens the muscles and tendons in the heel, releasing pressure and eventually reducing pain.
After the painful symptoms of Sever’s disease have gone away, it is important to continue stretching the heel, particularly before a vigorous exercise, and wearing good supportive shoes fitted with children’s arch supports. This will prevent heel pain recurrence until the child’s heel is fully developed and less prone to injury.