The Achilles tendon is the extension from the two large muscles in the calf region, the gastrocnemius and the soleus. These two muscles combine to form the Achilles tendon. The tendon forms in the lower one third of the leg and extends to the back of the heel bone (calcaneus). When the muscles of the calf contract this produces tension on the Achilles tendon pulling on the back of heel causing the heel to rise and the foot to point downward. It is during this motion that high-tension force is transmitted through the Achilles tendon during pushing and jumping activity. This high tension force can cause the Achilles tendon to tear or rupture. This happens in 3 common locations. The most common location for a tendon tear is within the tendon substance just above the heel. The second and third most common locations are where the Achilles tendon attaches into the heel bone and higher in the leg, where the tendon begins.
Repeated stress from a variety of causes is often the cause of Achilles tendon injury. The stress may occur from any of the following. Excessive activity or overuse. Flat feet. Poorly fitting or inadequate shoes. Inadequate warm-up or proper conditioning. Jogging or running on hard surfaces. Older recreational athlete. Previous Achilles tendon injury (tendonitis/rupture). Repeated steroid injections. Sudden changes in intensity of exercise. Use of fluoroquinolone antibiotics (especially in children). Trauma to the ankle. Tense calf muscles prior to exercise. Weak calf muscles.
Symptoms usually come on gradually. Depending on the severity of the injury, they can include Achilles pain, which increases with specific activity, with local tenderness to touch. A sensation that the tendon is grating or cracking when moved. Swelling, heat or redness around the area. The affected tendon area may appear thicker in comparison to the unaffected side. There may be weakness when trying to push up on to the toes. The tendon can feel very stiff first thing in the morning (care should be taken when getting out of bed and when making the first few steps around the house). A distinct gap in the line of the tendon (partial tear).
Laboratory studies usually are not necessary in evaluating and diagnosing an Achilles tendon rupture or injury, although evaluation may help to rule out some of the other possibilities in the differential diagnosis. Plain radiography. Radiographs are more useful for ruling out other injuries than for ruling in Achilles tendon ruptures. Ultrasonography of the leg and thigh can help to evaluate the possibility of deep venous thrombosis and also can be used to rule out a Baker cyst, in experienced hands, ultrasonography can identify a ruptured Achilles tendon or the signs of tendinosis. Magnetic resonance imaging (MRI). MRI can facilitate definitive diagnosis of a disrupted tendon and can be used to distinguish between paratenonitis, tendinosis, and bursitis.
Non Surgical Treatment
Once a diagnosis of Achilles tendon rupture has been confirmed, a referral to an orthopaedic specialist for treatment will be recommended. Treatment for an Achilles tendon rupture aims to facilitate the torn ends of the tendon healing back together again. Treatment may be non-surgical (conservative) or surgical. Factors such as the site and extent of the rupture, the time since the rupture occurred and the preferences of the specialist and patient will be considered when deciding which treatment will be undertaken. Some cases of rupture that have not responded well to non-surgical treatment may require surgery at a later stage. The doctor will immobilise the ankle in a cast or a special hinged splint (known as a ?moon boot?) with the foot in a toes-pointed position. The cast or splint will stay in place for 6 - 8 weeks. The cast will be checked and may be changed during this time.
The best treatment for a ruptured Achilles tendon in an active individual is typically surgery. While an Achilles rupture can sometimes be treated with a cast, splint, brace, or other device that will keep your lower leg from moving, surgery provides less chance that the tendon will rupture again and offers more strength and a shorter recovery period. Surgery may be delayed for a period of a week after the rupture, to let the swelling go down. There are two types of surgery to repair a ruptured Achilles tendon and both involve the surgeon sewing the tendon back together through the incision. Open surgery, the surgeon makes a single large incision in the back of the leg. Percutaneous surgery, the surgeon makes a number of small incisions rather than one large incision. Depending on the condition of the torn tissue, the repair may be reinforced with other tendons.
To reduce your chance of developing Achilles tendon problems, follow the following tips. Stretch and strengthen calf muscles. Stretch your calf to the point at which you feel a noticeable pull but not pain. Don't bounce during a stretch. Calf-strengthening exercises can also help the muscle and tendon absorb more force and prevent injury. Vary your exercises. Alternate high-impact sports, such as running, with low-impact sports, such as walking, biking or swimming. Avoid activities that place excessive stress on your Achilles tendons, such as hill running and jumping activities. Choose running surfaces carefully. Avoid or limit running on hard or slippery surfaces. Dress properly for cold-weather training and wear well-fitting athletic shoes with proper cushioning in the heels. Increase training intensity slowly. Achilles tendon injuries commonly occur after abruptly increasing training intensity. Increase the distance, duration and frequency of your training by no more than 10 percent each week.