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Overview

An Achilles tendon rupture is when you tear the tissue that connects your calf muscle to your heel bone. Your Achilles tendon is very strong and flexible. It?s at the back of your ankle and connects your calf muscle to the bone in the heel of your foot (calcaneum). If you rupture your Achilles tendon, you can either partially or completely tear the tendon. Most people who injure their Achilles tendon are between 30 and 50 and don?t exercise regularly. It?s more common in men but can affect anyone. It happens most often in the left leg. This may be because most people are right-handed which means that they ?push off? more frequently with the left foot when running.

Causes
The Achilles tendon usually ruptures as a result of a sudden forceful contraction of the calf muscles. Activities such as jumping, lunging, or sprinting can cause undue stress on the Achilles tendon and cause it to rupture. Often there is a background of Achilles tendinitis. Direct trauma to the area, poor flexibility or weakness of the calf muscles or of the Achilles tendon and increasing age are some of the other factors that are associated with an Achilles tendon rupture.

Symptoms
Ankle pain and swelling or feeling like the ankle has ?given out? after falling or stumbling. A loud audible pop when the ankle is injured. Patients may have a history of prior ankle pain or Achilles tendonitis, and may be active in sports. Swelling, tenderness and possible discoloration or ecchymosis in the Achilles tendon region. Indentation above the injured tendon where the torn tendon may be present. Difficulty moving around or walking. Individual has difficulty or is unable to move their ankle with full range of motion. MRI can confirm disruption or tear in the tendon. Inability to lift the toes.

Diagnosis
A typical history as detailed above together with positive clinical examination usually will clinch the diagnosis. In an acute rupture, one can usually feel the gap in the tendon from the rupture. There may be swelling or bruising around the ankle and foot of the injured leg. With the patient lying on the tummy (prone position) with the knee flexed, the examiner should see the ankle and foot flex downwards (plantarward) when squeezing the calf muscles. If there is no movement in the ankle and foot on squeezing the calf muscle, this implies that the calf muscle is no longer attached to the heel bone due to a complete Achilles tendon rupture.

Non Surgical Treatment
Non-surgical treatment of Achilles tendon rupture is usually reserved for patients who are relatively sedentary or may be at higher risk for complications with surgical intervention (due to other associated medical problems). This involves a period of immobilization, followed by range of motion and strengthening exercises; unfortunately, it is associated with a higher risk of re-rupture of the tendon, and possibly a less optimal functional outcome.


Surgical Treatment
Your doctor may recommend surgery if you?re young and active, or an athlete. However, this will depend on where your tendon is ruptured. If the rupture is at, or above, the point at which your tendon merges with your calf muscle, for example, surgery may not be possible. There are three main types of surgery to repair a ruptured Achilles tendon. Open surgery. Your surgeon will make one long cut in your leg to reach the tendon and repair it. Limited open surgery. Your surgeon will still make a single cut but it will be shorter. Percutaneous surgery. Your surgeon will make a number of small cuts to reach the tendon and repair it. In all types of surgery, your surgeon will stitch the tendon together so it can heal. Each type of surgery has different risks. Open surgery is less likely to injure one of the nerves in your leg for example, but has a higher risk of infection. Ask your surgeon to explain the risks in more detail. After your operation, you will need to wear a series of casts or an adjustable brace on your leg to help your Achilles tendon heal. This will usually be for between four and eight weeks. There is a chance that your tendon will rupture again after the operation.