Sever's disease, also called calcaneal apophysitis, is a painful bone disorder that results from inflammation (swelling) of the growth plate in the heel. A growth plate, also called an epiphyseal
plate, is an area at the end of a developing bone where cartilage cells change over time into bone cells. As this occurs, the growth plates expand and unite, which is how bones grow. Sever's disease
is a common cause of heel pain in growing kids, especially those who are physically active. It usually occurs during the growth spurt of adolescence, the approximately 2-year period in early puberty
when kids grow most rapidly. This growth spurt can begin any time between the ages of 8 and 13 for girls and 10 and 15 for boys. Sever's disease rarely occurs in older teens because the back of the
heel usually finishes growing by the age of 15, when the growth plate hardens and the growing bones fuse together into mature bone. Sever's disease is similar to Osgood-Schlatter disease, a condition
that affects the bones in the knees.
Physically active children run the risk of developing Sever?s disease because they put the most strain on their growing bones. Sever?s usually occurs during the adolescent growth spurt, when young
people grow most rapidly. (This growth spurt can begin any time between the ages of 8 and 13 for girls and 10 and 15 for boys.) By age 15 the back of the heel usually finished growing. As teens grow,
the growth plates harden and the growing bones fuse together into mature bone. Young people engaged in physical activities and sports that involve jumping and running on hard surfaces-such as track,
basketball, soccer, and gymnastics-are ata higher risk for developing Sever?s disease. Poor-fitting shoes can contribute by not providing enough support or padding for the feet or by rubbing against
the back of the heel.
The condition can be quite disabling and tends to affect those who are very busy with sporting activities. In the initial stages of the condition, most children displaying signs of Severs disease
will tend to hobble or limp off the sports field or court and complain of sore heels near the end of activity. As the condition progresses, children may complain of pain during activity and in severe
cases prior to sporting activities. Kids heel pain can be quite discouraging for active children but, early treatment can resolve this type of foot pain in children very quickly.
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
See a doctor, who can diagnose the injury and recommend appropriate treatment options. It will be beneficial to rest the affected heel, and to regularly ice the affected area for the first few days.
Anti-inflammatory pain medication can reduce pain and swelling, but first check with your doctor. As the pain diminishes a physical therapist can assist with a program of rehabilitation,
incorporating stretching and strengthening exercises focused on the calf, shin and hamstring muscles. For a period after the injury has healed the doctor may advise on changes to your training
routines that seek to lessen the strain on the heels. Orthotics are often recommended for your shoes in order to correct any biomechanical problems or lend extra support to the heels.