The true name of this complaint is calcaneal apophysitis which just means an inflamation of the growth centre of the bone in your heel as a result of pulling by the Achilles tendon - it is important to realise that it is not a disease but rather a condition that develops in the growing skeleton with activity. It is the most common cause of heel pain in young athletes, and is the second most common condition of its kind in the younger athelete after Osgood-Schlatter's disease. It is often seen at a time of rapid growth during which the muscles and soft tissues become tighter as the bones get longer. It occurs more in boys than girls and is seen most commonly between the ages of 8 and 14 years though it tends to be more prevalent in the younger of this group.
The heel bone grows faster than the ligaments in the leg. As a result, muscles and tendons can become very tight and overstretched in children who are going through growth spurts. The heel is especially susceptible to injury since the foot is one of the first parts of the body to grow to full size and the heel area is not very flexible. Sever?s disease occurs as a result of repetitive stress on the Achilles tendon. Over time, this constant pressure on the already tight heel cord can damage the growth plate, causing pain and inflammation. Such stress and pressure can result from, Sports that involve running and jumping on hard surfaces (track, basketball and gymnastics). Standing too long, which puts constant pressure on the heel. Poor-fitting shoes that don?t provide enough support or padding for the feet. Overuse or exercising too much can also cause Sever?s disease.
Symptoms of calcaneal apophysitis may include Pain in the back or bottom of the heel, Limping, Walking on toes, Difficulty running, jumping, or participating in usual activities or sports, Pain when the sides of the heel are squeezed.
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
Treatment aim is to lessen the load on the insertion of the Achilles tendon, along with pain relief if necessary. This can be achieved by modifying/reducing activity levels. Shoe inserts or heel raises. Calf stretches. Avoiding barefoot walking. Strapping or taping the foot to reduce movement. Orthotic therapy if due to biomechanical causes. Other treatment includes icing of the painful area to reduce swelling, pain medication if necessary and immobilisation of the affected limb in severe or long standing cases.
It is important to undertake correct warm ups and warm downs before and after exercise. This should include a stretching routine. It may be necessary to undertake additional stretching outside of sport, especially during stages of growth. Only playing one sport should be avoided. You should not allow your child to play through pain.