Calcaneal Apophysitis In Adults

Overview

During AGS, and in specific reference to Sever?s disease, the heel bone grows faster than the Achilles tendon, resulting in an extremely tight Achilles tendon. Because the foot is one of the first parts of the body to grow to full size, and because the heel is not a very flexible area, it is especially susceptible to injury. The Achilles tendon (also called the heel cord) is the strongest tendon that attaches to the growth plate in the heel. Over time, repeated stress (such as impact activities) on the tight Achilles tendon causes the tendon to pull on and damage the growth plate in the heel, resulting in swelling, tenderness, and pain.

Causes

A big tendon called the Achilles tendon joins the calf muscle at the back of the leg to the heel. Sever?s disease is thought to occur because of a mismatch in growth of the calf bones to the calf muscle and Achilles tendon. If the bones grow faster than the muscles, the Achilles tendon that attaches the muscle to the heel gets tight. At the same time, until the cartilage of the calcaneum is ossified (turned into bone), it is a potential weak spot. The tight calf muscle and Achilles tendon cause a traction injury on this weak spot, resulting in inflammation and pain. Sever?s disease most commonly affects boys aged ten to 12 years and girls aged nine to 11 years, when growth spurts are beginning. Sever?s disease heals itself with time, so it is known as self-limiting. There is no evidence to suggest that Sever?s disease causes any long term problems or complications.

Symptoms

This syndrome can occur unilaterally or bilaterally. The incidence of bilaterally is approximately 60%. Common signs and symptoms include posterior inferior heel pain (over the medial and lateral surface of the bone). Pain is usually absent when the child gets up in the morning. Increased pain with weight bearing, running or jumping (= activity-related pain). The area often feels stiff. The child may limp at the end of physical activity. Tenderness at the insertion of the tendons (= an avascular necrosis of the arthropathy). Limited ankle dorsiflexion range secondary to tightness of the Achilles tendon. Hard surfaces and poor-quality or worn-out athletic shoes contribute to increased symptoms. The pain gradually resolves with rest. Reliability or validity of methods used to obtain the ankle joint dorsiflexion or biomechanical malalignment data are not commented upon, thus reducing the quality of the data. Although pain and limping are mentioned as symptomatic traits, there have been no attempts to quantify the pain or its effect on the individual.

Diagnosis

Most often, a healthcare professional can diagnose Sever?s disease by taking a careful history and administering a few simple tests during the physical exam. A practitioner may squeeze the heel on either side; when this move produces pain, it may be a sign of Sever?s disease. The practitioner may also ask the child to stand on their tiptoes, because pain that occurs when standing in this position can also be an indication of Sever?s disease.

Non Surgical Treatment

Consulting with a physiotherapist to confirm the diagnosis is important. Physiotherapist?s will advise on a management plan, usually consisting of activity modification (a reduction in playing and training) and addressing the contributing factors as outlined above. Treatment may include relative rest/modified rest or cessation of sports, biomechanical correction, the use of heel wedges, soft tissue massage, joint mobilisation, education, icing, taping, exercises addressing flexibility, strength or balance issues, footwear assessment and advice, a gradual return to activity program.

Surgical Treatment

The surgeon may select one or more of the following options to treat calcaneal apophysitis. Reduce activity. The child needs to reduce or stop any activity that causes pain. Support the heel. Temporary shoe inserts or custom orthotic devices may provide support for the heel. Medications. Nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, help reduce the pain and inflammation. Physical therapy. Stretching or physical therapy modalities are sometimes used to promote healing of the inflamed issue. Immobilization. In some severe cases of pediatric heel pain, a cast may be used to promote healing while keeping the foot and ankle totally immobile. Often heel pain in children returns after it has been treated because the heel bone is still growing. Recurrence of heel pain may be a sign of calcaneal apophysitis, or it may indicate a different problem. If your child has a repeat bout of heel pain, be sure to make an appointment with your foot and ankle surgeon.

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