Sever’s disease involves a lesion to the heel that appears mostly as a result of excessively twisting the ankle. The injury is particularly prevalent in children over 10 and other younger athletes because the heel bone, muscles and tendons are still developing – the bone faster than the muscles – and the condition strikes a growing part of the bone called the calcaneal apophysis. In older people an injury of this sort generally results in a stress fracture.
Sever’s Disease typically affects boys and girls between 8-15 years of age. Risk factors include. Athletic activity that involves heel contact with hard surfaces, as in gymnastics, track, soccer, basketball, ice skating, ballet and aerobics. The wearing of ill-fitting shoes. Well-made shoes that fit properly are a must for every child. Prolonged periods of standing. If a child complains of heel pain after choir practice, doing dishes, standing in lines or other activities that put pressure on the heel bones, pay attention.
Symptoms of calcaneal apophysitis may include Pain in the back or bottom of the heel, Limping, Walking on toes, Difficulty running, jumping, or participating in usual activities or sports, Pain when the sides of the heel are squeezed.
Physical examination varies depending on the severity and length of involvement. Bilateral involvement is present in approximately 60% of cases. Most patients experience pain with deep palpation at the Achilles insertion and pain when performing active toe raises. Forced dorsiflexion of the ankle also proves uncomfortable and is relieved with passive equinus positioning. Swelling may be present but usually is mild. In long-standing cases, the child may have calcaneal enlargement.
Non Surgical Treatment
Initially, treatment will consist of resting from activity, ice and anti-inflammatory medications to reduce the pain. Your physiotherapist may also use a variety of pain reducing techniques such as soft tissue massage or joint mobilisations. They may recommend taping to unload the area of pain, heel cups or wedge inserts into the bottom of your shoe. Also in the initial phase we may also refer you to podiatry for orthotics and/or further footwear recommendations. It is also ideal in the first instance to start stretching your calf muscles and achilles. This initial phase typically lasts for 1-2 weeks. During this time your physiotherapist will guide you on appropriate levels of activity- they may recommend you rest from impact type activities during this phase, and will guide you on the best program to return to your sport without any further injury.
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.