An Achilles tendon rupture, also known as an Achilles tendon tear, is the snapping or pulling apart of the Achilles tendon into two pieces. Achilles tendon ruptures can be full ruptures or partial ruptures. A physician may be required to distinguish between acute Achilles tendinosis and a partial Achilles tendon rupture. Tennis Leg is a rupture of the connection between the calf muscle and the Achilles tendon. Achilles tendonitis is an inflammation of the Achilles tendon: it is much less common than, but often confused with, Achilles tendinosis. Achilles tendons can also be lacerated or crushed.
Common causes of an Achilles tendon rupture include the progression of or the final result of longstanding Achilles tendonitis or an overuse injury. An injury to the ankle or a direct blow to the Achilles tendon. As a result of a fall where an individual lands awkwardly or directly on the ankle. Laceration of the tendon. Weakness of the gastrocnemius or soleus muscles in people with existing Achilles tendonitis places increased stress on the tendon. Steroid use has been linked to tendon weakness. Certain systemic diseases have been associated with tendon weakness. A sudden deceleration or stopping motions that cause an acute traumatic injury of the ankle. Injection of steroids to the involved tendon or the excessive use of steroids has been known to weaken tendons and make them susceptible to rupture. Contraction of the calf muscles while the foot is dorsiflexed (pointed toward the head) and the lower leg is moving forward.
A sudden and severe pain may be felt at the back of the ankle or calf, often described as "being hit by a rock or shot" or "like someone stepped onto the back of my ankle." The sound of a loud pop or snap may be reported. A gap or depression may be felt and seen in the tendon about 2 inches above the heel bone. Initial pain, swelling, and stiffness may be followed by bruising and weakness. The pain may decrease quickly, and smaller tendons may retain the ability to point the toes. Without the Achilles tendon, though, this would be very difficult. Standing on tiptoe and pushing off when walking will be impossible. A complete tear is more common than a partial tear.
An Achilles' tendon injury can be diagnosed by applying the Thompson Test (or Calf Squeeze Test) this is where the person who has suffered the injury lies on their front with their legs bent. Whoever is performing the test, usually a doctor, will then squeeze the calf muscle. If the tendon has not ruptured then the foot should point briefly away from the leg.
Non Surgical Treatment
There is no definitive protocol for conservative management. Traditionally, conservative treatment involved immobilisation in a cast or boot, with initial non-weight bearing. Recently, good results have been achieved with functional bracing and early mobilisation, and it is common to be immediately weight-bearing in an orthotic. Conservative management reduces the chance of complications, such as infection. There is a risk the tendon can heal too long and more slowly.
In general, for complete tear of the tendon, surgery is recommended. For partial tears, nonsurgical treatment is recommended. However, the selection of treatment depends on the patient, age, level of activity, and other risk factors. Surgery for Achilles tendon rupture is now routine and well established. Surgery is generally suggested for the young, healthy and active individuals. For athletes, surgery is often the first choice of treatment. The Achilles tendon can be repaired surgically by either a closed or open technique. With the open technique, an incision is made to allow for better visualization and approximation of the tendon. With the closed technique, the surgeon makes several small skin incisions through which the tendon is repaired. Irrespective of type of treatment, a short leg cast (plaster) is applied on the operated ankle after completion of the procedure. The advantages of a surgical approach includes a decreased risk of re-rupture rate (0%-5%) the majority of individuals can return to their original sporting activities (within a short time), and most regain their strength and endurance. Disadvantages of a surgical approach include hospital admission, wound complications (for example, skin sloughing, infection, sinus tract formation, sural nerve injury), higher costs, and hospital admission.
Good flexibility of the calf muscles plays an essential role in the prevention of Achilles tendon injuries. It is also important to include balance and stability work as part of the training programme. This should include work for the deep-seated abdominal muscles and for the muscles that control the hip. This might at first appear odd, given the fact that the Achilles are a good distance from these areas, but developing strength and control in this area (core stability) can boost control at the knee and ankle joints. Training errors should be avoided. The volume, intensity and frequency of training should be monitored carefully, and gradually progressed, particularly when introducing new modes of training to the programme. Abrupt changes in training load are the primary cause of Achilles tendinopathy.