Sever?s disease, or calcaneal apophysitis, is a common cause of heel pain in patients whose bones are still growing; however, it is not really a disease. The pain is caused by stress at the point where the Achilles tendon meets tissue called the plantar fascia on the growth plate (apophysis) of the heel bone (calcaneus).
Sever's affects boys more often than girls. Boys are most often affected at age 12, and girls at age 9, though Sever's is typically seen in children and adolescents between the ages of 7 and 15.
Sever?s disease is often associated with a growth spurt, when the bones grow but the muscles do not. Therefore the muscles effectively become tighter which results in increased stress at the heel. It may also be related to unusual biomechanics, for instance poor foot posture, muscle tightness or muscle weakness. Overtraining or incorrect training can also play a part. Usually, the cause is a combination of factors.
The pain associated with Sever's disease is usually felt along the back of the heel and becomes worse when running or walking. In some children, the pain is so severe they may limp when walking. One of the diagnostic tests for Sever's disease is the "squeeze test". Squeezing both sides of the heel together will produce immediate discomfort. Many children feel pain immediately upon waking and may have calf muscle stiffness in the morning.
A Podiatrist can easily evaluate your child?s feet, to identify if a problem exists. Through testing the muscular flexibility. If there is a problem, a treatment plan can be create to address the issue. At the initial treatment to control movement or to support the area we may use temporary padding and strapping and depending on how successful the treatment is, a long-term treatment plan will be arranged. This long-term treatment plan may or may not involve heel raises, foot supports, muscle strengthening and or stretching.
Non Surgical Treatment
A physiotherapist will assess your pain, presentation and biomechanics. They can then treat your sever?s disease with hands on techniques which may include massage, manual therapy and taping. Your physiotherapist can then provide advice on what you can do at home to further progress your treatment, this may include stretching, strengthening and activity modification. In some cases orthotic prescription may be of benefit.
Sever?s disease is self-recovering, meaning that it will go away on its own when the foot is used less or when the bone is through growing. The condition is not expected to create any long-term disability, and expected to subside in 2-8 weeks. Some orthopedic surgeons will put the affected foot in a cast to immobilize it. However, while the disease does subside quickly, it can recur, for example at the s It is more common in boys, although occurs in girls as well. The average age of symptom onset is 9-11.