Cheryle Nadler

Overview

Achilles tendon rupture is most common in people aged 30-50. Patients may describe the injury as feeling or hearing a snap or bang, or as feeling they have been shot in the back of the leg. On examination, patients will have reduced plantarflexion and a positive Thompson test. Surgery is associated with a lower risk of re-rupture and a greater likelihood of returning to sporting activity. Conservative management reduces the chance of complications.

Causes
As with any muscle or tendon in the body, the Achilles tendon can be torn if there is a high force or stress on it. This can happen with activities which involve a forceful push off with the foot, for example, in football, running, basketball, diving, and tennis. The push off movement uses a strong contraction of the calf muscles which can stress the Achilles tendon too much. The Achilles tendon can also be damaged by injuries such as falls, if the foot is suddenly forced into an upward-pointing position, this movement stretches the tendon. Another possible injury is a deep cut at the back of the ankle, which might go into the tendon. Sometimes the Achilles tendon is weak, making it more prone to rupture. Factors that weaken the Achilles tendon are as follows. Corticosteroid medication (such as prednisolone) - mainly if it is used as long-term treatment rather than a short course. Corticosteroid injection near the Achilles tendon. Certain rare medical conditions, such as Cushing's syndrome, where the body makes too much of its own corticosteroid hormones. Increasing age. Tendonitis (inflammation) of the Achilles tendon. Other medical conditions which can make the tendon more prone to rupture; for example, rheumatoid arthritis, gout and systemic lupus erythematosus (SLE), lupus. Certain antibiotic medicines may slightly increase the risk of having an Achilles tendon rupture. These are the quinolone antibiotics such as ciprofloxacin and ofloxacin. The risk of having an Achilles tendon rupture with these antibiotics is actually very low, and mainly applies if you are also taking corticosteroid medication or are over the age of about 60.

Symptoms
Patients who suffer an acute rupture of the Achilles tendon often report hearing a "pop" or "snap." Patients usually have severe pain the back of the lower leg near the heel. This may or may not be accompanied by swelling. Additionally, because the function of the Achilles tendon is to enable plantarflexion (bending the foot downward), patients often have difficulty walking or standing up on their toes.

Diagnosis
To diagnose an Achilles tendon injury, your health care provider will give you a thorough physical exam. He or she may want to see you walk or run to look for problems that might have contributed to your Achilles tendon injury.

Non Surgical Treatment
Treatment of the initial injury is with use of ice, elevation, and immobilization. If suspected you should contact your podiatrist or physician. Further treatment with continued immobilization, pain medication, or anti-inflammatory medications may be advised. If casted the foot is usually placed in a plantarflexed position to decrease the stretch on the tendon. As healing progresses the cast is changed to a more dorsiflexed position at the ankle. The casting processes can be up to 8 weeks or more.


Surgical Treatment
Surgery offers important potential benefits. Besides decreasing the likelihood of re-rupturing the Achilles tendon, surgery often increases the patient?s push-off strength and improves muscle function and movement of the ankle. Various surgical techniques are available to repair the rupture. The surgeon will select the procedure best suited to the patient. Following surgery, the foot and ankle are initially immobilized in a cast or walking boot. The surgeon will determine when the patient can begin weight bearing. Complications such as incision-healing difficulties re-rupture of the tendon, or nerve pain can arise after surgery.