During AGS, and in specific reference to Sever?s disease, the heel bone grows faster than the Achilles tendon, resulting in an extremely tight Achilles tendon. Because the foot is one of the first
parts of the body to grow to full size, and because the heel is not a very flexible area, it is especially susceptible to injury. The Achilles tendon (also called the heel cord) is the strongest
tendon that attaches to the growth plate in the heel. Over time, repeated stress (such as impact activities) on the tight Achilles tendon causes the tendon to pull on and damage the growth plate in
the heel, resulting in swelling, tenderness, and pain.
With early puberty, the growth plate at the end of the heel develops, transforming cartilage cells into bone cells. This painful heel condition occurs during these growth spurts, when the heel bone
grows more rapidly than the muscles and tendons of the leg. The discrepancy between rates of development causes excess pressure and tension to be placed upon the heel and it becomes less flexible.
This condition affects active children the most. Due to the amount of exercise, more stress is placed upon the tendons which in turn causes more damage to the growth plate. The bone plates fully
mature and harden by the time a child reaches the age of 15.
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.
A doctor can usually tell that a child has Sever's disease based on the symptoms reported. To confirm the diagnosis, the doctor will probably examine the heels and ask about the child's activity
level and participation in sports. The doctor might also use the squeeze test, squeezing the back part of the heel from both sides at the same time to see if doing so causes pain. The doctor might
also ask the child to stand on tiptoes to see if that position causes pain. Although imaging tests such as X-rays generally are not that helpful in diagnosing Sever's disease, some doctors order them
to rule out other problems, such as fractures. Sever's disease cannot be seen on an X-ray.
Non Surgical Treatment
There is nothing you can do to stop severs disease. It will stop when you finish growing. However the following will help to relieve the symptoms. Rest. Cut down on the time you spend playing sport
until the pain has gone. Avoid sports that involve a lot of running or jumping. Swimming can be a useful alternative. Ice the affected area for ten to 15 minutes, especially after activity. Make sure
you protect the skin by wrapping the ice in a towel. Elevate (raise) the leg when painful and swollen especially after sports. Pain relieving medication may reduce pain and swelling, but you need to
discuss options with a pharmacist or GP. Always wear shoes. Avoid activities in bare feet. Choose a supportive shoe with the laces done up.
Stretching exercises can help. It is important that your child performs exercises to stretch the hamstring and calf muscles, and the tendons on the back of the leg. The child should do these
stretches 2 or 3 times a day. Each stretch should be held for about 20 seconds. Both legs should be stretched, even if the pain is only in 1 heel. Your child also needs to do exercises to strengthen
the muscles on the front of the shin. To do this, your child should sit on the floor, keeping his or her hurt leg straight. One end of a bungee cord or piece of rubber tubing is hooked around a table
leg. The other end is hitched around the child's toes. The child then scoots back just far enough to stretch the cord. Next, the child slowly bends the foot toward his or her body. When the child
cannot bend the foot any closer, he or she slowly points the foot in the opposite direction (toward the table). This exercise (15 repetitions of "foot curling") should be done about 3 times. The
child should do this exercise routine a few times daily.