The Achilles tendon is the largest tendon in the body; connecting the calf muscles to the heel. An Achilles tendon rupture prevents the tendon from performing its function of pulling the foot and ankle downward during walking, running and jumping. Most ruptures occur about four to six inches above the heel, but the tendon can also tear where it meets the heel bone.
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.
Patients with an Achilles tendon rupture frequently present with complaints of a sudden snap in the lower calf associated with acute, severe pain. The patient reports feeling like he or she has been shot, kicked, or cut in the back of the leg, which may result in an inability to ambulate further. A patient with Achilles tendon rupture will be unable to stand on his or her toes on the affected side.
The diagnosis is usually made on the basis of symptoms, the history of the injury and a doctor's examination. The doctor may look at your walking and observe whether you can stand on tiptoe. She/he may test the tendon using a method called Thompson's test (also known as the calf squeeze test). In this test, you will be asked to lie face down on the examination bench and to bend your knee. The doctor will gently squeeze the calf muscles at the back of your leg, and observe how the ankle moves. If the Achilles tendon is OK, the calf squeeze will make the foot point briefly away from the leg (a movement called plantar flexion). This is quite an accurate test for Achilles tendon rupture. If the diagnosis is uncertain, an ultrasound or MRI scan may help. An Achilles tendon rupture is sometimes difficult to diagnose and can be missed on first assessment. It is important for both doctors and patients to be aware of this and to look carefully for an Achilles tendon rupture if it is suspected.
Non Surgical Treatment
This condition should be diagnosed and treated as soon as possible, because prompt treatment probably improves recovery. You may need to be referred urgently to see a doctor in an orthopaedic department or accident and emergency department. Meanwhile, if a ruptured Achilles tendon is suspected, you should not put any weight on that foot, so do not walk on it at all.Treatment options for an Achilles tendon rupture include surgical and non-surgical approaches. The decision of whether to proceed with surgery or non-surgical treatment is based on the severity of the rupture and the patient?s health status and activity level. Non-surgical treatment, which is generally associated with a higher rate of re-rupture, is selected for minor ruptures, less active patients, and those with medical conditions that prevent them from undergoing surgery. Non-surgical treatment involves use of a cast, walking boot, or brace to restrict motion and allow the torn tendon to heal.
Surgery could allow for a quicker healing time. The procedure generally involves making an incision in the back of your lower leg and stitching the torn tendon together. Depending on the condition of the tissue, the repair may be reinforced with other tendons. As with any surgery, the main complication is the risk for infection, however, this risk is reduced by using smaller incisions.
- May 01 Fri 2015 04:56