Sever?s disease is similar to Osgood-Schlatter disease of the knee in that they both involve a partial detachment or tearing of the tendon from the bone. The difference is location: Osgood-Schlatter occurs at the knee, and Sever?s occurs at the ankle. In Sever?s disease, which usually occurs in children from the ages of 8 to 14, the Achilles tendon begins to tear away from its insertion into the calcaneus or heel bone. This injury can be very painful and affect highly active to somewhat inactive children. Symptoms include pain that increases with activity, localized pain in the back of the foot, tenderness to the touch, and swelling. Treatment includes rest, ice, compression, elevation, and nonsteroidal anti-inflammatory medication as necessary.
The exact cause of Severs disease is not completely understood. It is thought to be associated with an overuse type injury, in which repetitive stress from the Achilles tendon causes a portion of the growth plate to pull away from the heel. In medical terms, this is described as cyclic, micro-avulsion type fractures to the calcaneal apophyses.
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.
To diagnose the cause of the child?s heel pain and rule out other more serious conditions, the foot and ankle surgeon obtains a thorough medical history and asks questions about recent activities. The surgeon will also examine the child?s foot and leg. X-rays are often used to evaluate the condition. Other advanced imaging studies and laboratory tests may also be ordered.
Non Surgical Treatment
Fortunately Severs? disease can be treated and prevented through a number of different techniques that have all proven highly effective. The heel will repair itself even without active treatment provided that the suffering foot is given a chance to heal. Typically Severs? disease will take 2-8 weeks, although in many cases it can take longer as the continuous growing of the bone can exacerbate the condition. Podiatrists have an important role in preventing Severs? disease in young athletes, and in treating the condition when it develops so children can get back on their feet as quickly as possible. Generally treatment involves stretching muscles running down to the heel to relieve tension and pain, these include the hamstrings and calf muscles, and these stretching exercises will need to be performed at least 2 or 3 times a day. RICE is a classic method of speeding up the recovery of self-healing injuries like Severs? disease. This involves Rest, the application of Ice to the injury, Compression, and finally Elevation to encourage repaid. These measures can be advised by a trained podiatrist, but it is then up to a child to carry on with regular RICE.
For children with Sever's disease, it is important to habitually perform exercises to stretch the hamstrings, calf muscles, and the tendons on the back of the leg. Stretching should be performed 2-3 times a day. Each stretch should be performed for 20 seconds, and both legs should be stretched, even if the pain is only in one heel. Heel cups or an inner shoe heel lifts are often recommended for patient suffering from Sever's disease. Wearing running shoes with built in heel cups can also decrease the symptoms because they can help soften the impact on the heel when walking, running, or standing.