Sever?s disease, also known as calcaneal apophysitis or Osgood-Schlatter syndrome of the foot. This traction apophysitis is secondary to repetitive microtraumata or overuse of the heel in young athletes. The calcaneus is situated at the most plantar posterior aspect of the foot. The Achilles tendon inserts to the lower, posterior and slightly medial aspect of the calcaneus. The plantar fascia originates from the medial tubercle on the plantar aspect of the calcaneus. Proximal to the epiphysis is the apophysis, where the Achilles tendon actually inserts. The calcaneal growth plate and apophysis are situated in an area subject to high stress from the plantar and Achilles tendon.
Sever's disease is a common cause of heel pain in physically active growing kids. 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 anytime between the ages of 8 to 13 for girls and 10 to 15 for boys. Peak incidences are girls, 8 to 10 years old. boys, 10 to 12 years old.
This is a condition that affects the cartilage growth plate and the separate island of growing bone on the back of the heel bone. This growth plate is called the physeal plate. The island of growing bone is called the apophysis. It has the insertion attachment of the Achilles tendon, and the attachment of the plantar fascia. This island of bone is under traction from both of these soft tissue tendon and tendon-like attachments.
You may have pain when your doctor squeezes your heel bone. You may have pain when asked to stand or walk on your toes or on your heels. You may have pain in your heel when your doctor stretches your calf muscles. Your doctor may order x-rays of the injured foot to show an active growth plate.
Non Surgical Treatment
First, your child should cut down or stop any activity that causes heel pain. Apply ice to the injured heel for 20 minutes 3 times a day. If your child has a high arch, flat feet or bowed legs, your doctor may recommend orthotics, arch supports or heel cups. Your child should never go barefoot. If your child has severe heel pain, medicines such as acetaminophen (one brand name: Tylenol) or ibuprofen (some brand names: Advil, Motrin, Nuprin) may help.
As with all overuse injuries, it is important to warm up sufficiently before you exercise and warm down afterwards. You should build up any alterations in the intensity of your training gradually, and never continue exercising with weakened or fatigued muscles. Replace any worn or tattered shoes, as in this condition they become useless for absorbing shock and protecting the feet.