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Overview
Achilles Tendonitis
The Achilles tendon is a conjoined tendon composed of the gastrocnemius and soleus muscles with occasional contribution from the plantaris muscle, and it inserts on the calcaneal tuberosity. The plantaris muscle is absent in 6% to 8% of individuals. The Achilles tendon is approximately 15-cm long and is the largest and strongest tendon in the human body. The tendon spirals approximately 90? from its origin to its insertion and this twisting produces an area of stress approximately 2- to 5-cm proximal to its insertion. The tendon has no true synovial sheath; instead it is wrapped in a paratenon. The Achilles tendon experiences the highest loads of any tendon in the body, and bears tensile loads up to 10 times body weight during athletic activities. The tendon most commonly ruptures in a region 2- to 6-cm proximal to its insertion.

Causes
Factors that may increase your risk of Achilles tendon rupture include Age. The peak age for Achilles tendon rupture is 30 to 40. Your sex. Achilles tendon rupture is up to five times more likely to occur in men than in women. Playing recreational sports. Achilles tendon injuries occur more often in sports that involve running, jumping and sudden starts and stops - such as soccer, basketball and tennis. Steroid injections. Doctors sometimes inject steroids into an ankle joint to reduce pain and inflammation. However, this medication can weaken nearby tendons and has been associated with Achilles tendon ruptures. Certain antibiotics. Fluoroquinolone antibiotics, such as ciprofloxacin (Cipro) or levofloxacin (Levaquin), increase the risk of Achilles tendon rupture.

Symptoms
Symptoms include a sudden sharp pain in the achilles tendon which is often described as if being physically struck by an object or implement. A loud snapping noise or bang may also be heard at the time. A gap of 4 to 5 cm in the tendon can be felt which may be less obvious later as swelling increases. After a short while the athlete may be able to walk again but without the power to push off with the foot. There will be a significant loss of strength in the injured leg and the patient will be unable to stand on tip toes. There may be considerable swelling around the achilles tendon and a positive result for Thompson's test can help confirm the diagnosis.

Diagnosis
It is usually possible to detect a complete rupture of the How do you treat Achilles tendonitis? tendon on the history and examination. A gap may be felt in the tendon, usually 4-5cm above the heel bone. This is the normal site of injury and is called an intra-substance tear. The tear can occur higher up about 10cm above the insertion into the heel at the site where the muscles join the tendon, this is known as a musculo-tendinous tear. A special test will be performed which involves squeezing the calf. Normally if the Achilles tendon is intact this causes the foot to point downwards but if it is ruptured it causes no movement. To confirm the diagnosis and the exact site of the rupture it may be necessary to perform an Ultra-sound or MRI scan.

Non Surgical Treatment
The best treatment for a ruptured Achilles tendon often depends on your age, activity level and the severity of your injury. In general, younger and more active people often choose surgery to repair a completely ruptured Achilles tendon while older people are more likely to opt for nonsurgical treatment. Recent studies, however, have shown fairly equal effectiveness of both operative and nonoperative management. Nonsurgical treatment. This approach typically involves wearing a cast or walking boot with wedges to elevate your heel; this allows the ends of your torn tendon to heal. This method can be effective, and it avoids the risks, such as infection, associated with surgery. However, the likelihood of re-rupture may be higher with a nonsurgical approach, and recovery can take longer. If re-rupture occurs, surgical repair may be more difficult.
Achilles Tendinitis

Surgical Treatment
Surgical techniques for rupture repair are varied but usually involve reapproximation of the torn ends of the Achilles tendon, sometimes reinforced by the gastrocsoleus aponeurosis or plantaris tendon. Open reconstruction is undertaken using a medial longitudinal approach. Studies indicate that patients who undergo percutaneous, rather than an open, Achilles tendon rupture repair have a minimal rate of infection but a high rate of sural nerve entrapment (16.7% of treated cases).

Prevention
The following can significantly reduce the risk of Achilles tendon rupture. Adequate stretching and warming up prior to exercising. If playing a seasonal sport, undertake preparatory exercises to build strength and endurance before the sporting season commences. Maintain a healthy body weight. This will reduce the load on the tendon and muscles. Use footwear appropriate for the sport or exercise being undertaken. Exercise within fitness limits and follow a sensible exercise programme. Increase exercise gradually and avoid unfamiliar strenuous exercise. Gradual ?warm down? after exercising.



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تاريخ : چهارشنبه 12 مهر 1396 | 15:08 | نویسنده : Candice Dodery |