Sever?s disease occurs in children when the growing part of the heel is injured. This growing part is called the growth plate. The foot is one of the first body parts to grow to full size. This usually occurs in early puberty. During this time, bones often grow faster than muscles and tendons. As a result, muscles and tendons become ?tight.? The heel area is less flexible. During weight-bearing activity (activity performed while standing), the tight heel tendons may put too much pressure at the back of the heel (where the Achilles tendon attaches). This may injure the heel.
Heel pain is very common in children due to the fact they are cnstantly growing. In most children, the heel bone (the calcaneus) is not fully developed until the age of 14 or older. Until then, new bone is forming at the growth plate of the foot (the apophysis, located at the back of the heel), an area which is softer than others due to its role in accommodating the growth. Repetitive stress on the growth plate due to walking, running and sports causes inflammation in the heel area. Because the heel's growth plate is sensitive, repeated running and pounding on hard surfaces can result in pediatric heel pain. Children and adolescents who take part in a lot of sport are especially vulnerable. Over-pronation (fallen arches and rolling inwards of the feet) will increase the impact on the growth plate and is therefore a significant cause and a major contributing factor to heel pain in children.
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 is diagnosed based on a doctor?s physical examination of the lower leg, ankle, and foot. If the diagnosis is in question, the doctor may order x-rays or an MRI to determine if there are other injuries that may be causing the heel pain.
Non Surgical Treatment
Treatment includes modifying activities and resting to reduce pain and inflammation and take pressure off the growth center. Ice can also be very helpful in relieving symptoms, as well as anti-inflammatory medication. A physical therapy program should be initiated to stretch tight calf muscles and strengthen the ankle muscles to relieve tension on the growth center. Shoes with padded heel surfaces and good arch support can decrease pain. Cleats may need to be avoided for some time to help reduce symptoms. The doctor may also recommend gel heel cups or supportive shoe inserts.
The chances of a child developing heel pain can be reduced by avoiding obesity. Choosing well-constructed, supportive shoes that are appropriate for the child?s activity. Avoiding or limiting wearing of cleated athletic shoes. Avoiding activity beyond a child?s ability.