n the growing child there are a number of different ways that bones grow. In the calcaneus (heel bone), growth comes from two separate growth plates. The lesser of the two growth plates is called the
apophysis. The apophysis of the calcaneus is located between the back and the bottom of the heel at that spot that hits the ground each time we take a step. The Achilles tendon, which is the most
powerful tendons in our body, attaches to the proximal aspect of the apophysis. The plantar fascia attaches to the distal aspect of the apophysis. Both the Achilles tendon and plantar fascia place
traction, or pulling on the growth plate and contribute to inflammation of the secondary growth plate called apophysitis. The calcaneal apophysis is very apparent on x-ray and continues to grow until
approximately age 12 in girls and age 15 in boys.
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.
Symptoms include heel pain related to sports activities and worsen after those sport and exercise activities. However, some children who are not in a sport may also get this if they are physically
active. If you notice that your child is ?walking on their toes? this is a sign of possible heel pain. The pain is usually on the back of the heel, the sides of the heel, the bottom of the heel, or a
combination of all of these. We typically don't see swelling with this, however if pressure is applied to the sides of the heel pain may be reported. Sometimes the pain is so bad the child will have
to limp, or take a break from sports activity either for a few days or few months.
Low-grade inflammation of the calcaneal apophysis cannot be seen on x-ray. Therefore, although x-rays are often done to rule out bony injuries in children with Sever's disease these x-rays are
usually normal. Advanced Sever's disease can be seen on x-ray but usually the problem is treated before it reaches this point. Other diagnostic tests, such as bone scans or MRI's, are not usually
required in typical cases of Sever's disease. These, or other tests, may be required to rule out other conditions, such as stress fractures of the calcaneus or other bony abnormalities that can mimic
Non Surgical Treatment
If your child suffers from Sever?s Disease, it is important you take him or her to see your podiatrist, as it can take some time for the condition to completely resolve. Possible treatment options
for Sever?s disease may include. Rest from aggravating activities. Ice massage to reduce localised inflammation. Heel lifts placed inside the shoe to reduce the strain on the growth plate. Athletic
footwear advice, poor footwear can sometimes be the major contributing factor in the development of Sever?s disease. Orthotic therapy, if your child has an abnormal foot posture that is contributing
to the development of Sever?s disease, this will need to be treated with orthotic therapy. Orthotics for Sever?s disease may need to be prescription (custom-made) or non-prescription foot orthotics
depending on your child?s foot posture, Exercise program, stretching exercises to improve flexibility of the leg muscles and strengthening exercises to address any foot muscle weakness or imbalance.
Avoid barefoot walking, hill running and training on hard surfaces.
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.