Inflammation of the Achilles tendon.The Achilles is the large tendon connecting the two major calf muscles, gastrocnemius and soleus, to the back of the heel bone. Under too much stress, the tendon tightens and is forced to work too hard. This causes it to become inflamed (that is tendinitis), and, over time, can produce a covering of scar tissue, which is less flexible than the tendon. If the inflamed Achilles continues to be stressed, it can tear or rupture.
The majority of Achilles tendon injuries are due to overuse injuries. Other factors that lead to Achilles tendonitis are improper shoe selection, inadequate stretching prior to engaging in athletics, a short Achilles tendon, direct trauma (injury) to the tendon, training errors and heel bone deformity. There is significant evidence that people with feet that role in excessively (over-pronate) are at greater risk for developing Achilles tendinitis. The increased pronation puts additional stress on the tendon, therefore, placing it at greater risk for injury.
Achilles tendonitis may be felt as a burning pain at the beginning of activity, which gets less during activity and then worsens following activity. The tendon may feel stiff first thing in the morning or at the beginning of exercise. Achilles tendonitis usually causes pain, stiffness, and loss of strength in the affected area. The pain may get worse when you use your Achilles tendon. You may have more pain and stiffness during the night or when you get up in the morning. The area may be tender, red, warm, or swollen if there is inflammation. You may notice a crunchy sound or feeling when you use the tendon.
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. Imaging studies. Plain radiography: Radiographs are more useful for ruling out other injuries than for ruling in Achilles tendon ruptures. Ultrasonography: 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.
Achilles tendinitis can typically be treated at home by following the R.I.C.E. treatment method. Rest. Rest the tendon by avoiding activities that irritate the tendon or increase swelling. However, this does not mean you should be completely inactive for long periods of time, as this can cause stiffness in your joints. It?s still important to stretch in order to maintain strength and flexibility and partake in activities that don?t put direct pressure on the tendon, such as bicycling. Ice. Apply ice to the affected area for 20-minutes at a time, every couple hours, as needed, to reduce swelling and pain. Compression. Use compression bandages to help reduce swelling. Elevation. Elevate your ankle above the level of your heart to help reduce swelling. It is particularly important to do this at night while you sleep. Simply place a pillow or two under your ankle to keep it elevated. Once the tendon has healed, be sure to gradually return to more strenuous activities. If flattened arches contributed to the injury, wear shoes with appropriate support or inserts to prevent the condition from progressing or recurring. If these non-surgical treatments have not been able to provide relief of symptoms after several months, surgery may be performed to remove inflamed tissue. However, this is not usually recommended unless all other options have been exhausted. Consult your doctor for more information about surgical treatment options.
If non-surgical treatment fails to cure the condition then surgery can be considered. This is more likely to be the case if the pain has been present for six months or more. The nature of the surgery depends if you have insertional, or non-insertional disease. In non-insertional tendonosis the damaged tendon is thinned and cleaned. The damage is then repaired. If there is extensive damage one of the tendons which moves your big toe (the flexor hallucis longus) may be used to reinforce the damaged Achilles tendon. In insertional tendonosis there is often rubbing of the tendon by a prominent part of the heel bone. This bone is removed. In removing the bone the attachment of the tendon to the bone may be weakened. In these cases the attachment of the tendon to the bone may need to be reinforced with sutures and bone anchors.
Warm up slowly by running at least one minute per mile slower than your usual pace for the first mile. Running backwards during your first mile is also a very effective way to warm up the Achilles, because doing so produces a gentle eccentric load that acts to strengthen the tendon. Runners should also avoid making sudden changes in mileage, and they should be particularly careful when wearing racing flats, as these shoes produce very rapid rates of pronation that increase the risk of Achilles tendon injury. If you have a tendency to be stiff, spend extra time stretching. If you?re overly flexible, perform eccentric load exercises preventively. Lastly, it is always important to control biomechanical alignment issues, either with proper running shoes and if necessary, stock or custom orthotics.