Sever?s is described as a traction apophysitis. In childhood our bones are made of a cartilage mould of the bone, which over time as we grow slowly turns into a full bone. The reason for this is that it is easier to grow cartilage to the length required, and then back fill with bone later than it is to actually grow new bone. Most bones have a least two growth of bone centres, one by the joint and one making the main body of the bone. In the growing heel bone (calcaneus) the posterior part has a separate growth area where the Achilles tendon attaches. When playing lots of sport, especially football, rugby and hockey, the two areas of bone can be pulled apart, producing pain. Recent evidence has also suggested that the appearance of this condition on MRI (magnetic resonance imaging), appears to indicate that Sever?s is a type of stress fracture. Whether that fatigue stress is from compression or tension remains in debate, and is probably a combination of both.
Sever?s disease is most likely to occur during the growth spurt that occurs in adolescence. For girls, growth spurts usually occurs between 8 and 13 years of age. For boys, it?s typically between 10 and 15 years of age. The back of the heel hardens and becomes stronger when it finishes growing, which is why Sever?s rarely occurs in older adolescents and teenagers.
Symptoms include Heel Pain. Pain at the back of the heels when walking or running. Possibly a lump at the back of the heel, although this might be minimal. Pain and tenderness at the back of the heels, especially if you press on it, or give it a squeeze from the sides. Tight calf muscles resulting in reduced ankle range of motion.
Children or adolescents who are experiencing pain and discomfort in their feet should be evaluated by a physician. In some cases, no imaging tests are needed to diagnose Sever?s disease. A podiatrist or other healthcare professional may choose to order an x-ray or imaging study, however, to ensure that there is no other cause for the pain, such as a fracture. Sever?s disease will not show any findings on an x-ray because it affects cartilage.
Non Surgical Treatment
It is important that those with Sever?s Disease are treated by a medical professional to reduce pain and allow children to continue to participate in sporting activities. The Athlete?s Foot recommends a visit to your local medical professional to be diagnosed correctly and receive specialised care. Symptoms include pain through the back of the heel where the Achilles tendon inserts into the heel bone, pain during activity especially running and jumping and the back of the heel may be tender to touch.