Achilles Tendonitis

Overview
The Achilles tendon attaches the calf muscle to the heel bone. Achilles tendonitis is a repetitive strain (overuse) injury involving lower leg muscles and tendons at the point where they attach to the bone, resulting in pain at the back of the ankle. Chronic overuse can lead to small tears within the tendon causing long-term weakening, making the tendon susceptible to rupture, which could result in a need for surgery.

Causes
Achilles tendinitis can be caused by overly tight calf muscles, excessive running up hill or down hill, a sudden increase in the amount of exercise, e.g. running for a longer distance, wearing ill-fitting running shoes, such as those with soles that are too stiff, or wearing high heels regularly, or changing between high heels all day and flat shoes or low running shoes in the evening. Overuse is common in walkers, runners, dancers and other athletes who do a lot of jumping and sudden starts/stops, which exert a lot of stress on the Achilles tendon. Continuing to stress an inflamed Achilles tendon can cause rupture of the tendon - it snaps, often with a distinctive popping sound. A ruptured Achilles tendon makes it virtually impossible to walk. An Achilles tendon rupture is usually treated by surgical repair or wearing a cast.

Symptoms
Mild ache in the back of the lower leg, especially after running. More acute pain may occur after prolonged activity, Tenderness or stiffness in the morning. In most cases the pain associated with Achilles tendinitis is more annoying than debilitating, making sufferers regret activity after the fact, but not keeping them from doing it. More severe pain around the Achilles tendon may be a symptom of a much more serious ruptured tendon.

Diagnosis
Examination of the achilles tendon is inspection for muscle atrophy, swelling, asymmetry, joint effusions and erythema. Atrophy is an important clue to the duration of the tendinopathy and it is often present with chronic conditions. Swelling, asymmetry and erythema in pathologic tendons are often observed in the examination. Joint effusions are uncommon with tendinopathy and suggest the possibility of intra-articular pathology. Range of motion testing, strength and flexibility are often limited on the side of the tendinopathy. Palpation tends to elicit well-localized tenderness that is similar in quality and location to the pain experienced during activity. Physical examinations of the Achilles tendon often reveals palpable nodules and thickening. Anatomic deformities, such as forefoot and heel varus and excessive pes planus or foot pronation, should receive special attention. These anatomic deformities are often associated with this problem. In case extra research is wanted, an echography is the first choice of examination when there is a suspicion of tendinosis. Imaging studies are not necessary to diagnose achilles tendonitis, but may be useful with differential diagnosis. Ultrasound is the imaging modality of first choice as it provides a clear indication of tendon width, changes of water content within the tendon and collagen integrity, as well as bursal swelling. MRI may be indicated if diagnosis is unclear or symptoms are atypical. MRI may show increased signal within the Achilles.

Nonsurgical Treatment
Proper footwear with a strong and secure counter (the heel circumference) may help to encourage heeling of the tendon. A tendinitis will occasionally resolve on it?s own, with rest, ice, and gentle stretching. If symptoms persist for more than 2 weeks, consult your physician. Your physician may suggest physiotherapy and custom orthotics. Physiotherapy can suggest appropriate exercises and modalities to aid in the healing process. Custom orthotics can be very successful in treating the problem, as the original cause may be due to an improper alignment of the foot and heel. Re-aligning the foot to a neutral position may provide an optimal, biomechanically sound environment for healing to occur.


Surgical Treatment
Most people will improve with simple measures or physiotherapy. A small number continue to have major problems which interfere with their lifestyle. In this situation an operation may be considered. If an operation is being considered, the surgeon will interview you and examine you again and may want you to have further treatment before making a decision about an operation. Before undergoing Achilles tendonitis surgery, London based patients, and those who can travel, will be advised to undergo a scan, which will reveal whether there is a problem in the tendon which can be corrected by surgery. Patients will also have the opportunity to ask any questions and raise any concerns that they may have, so that they can proceed with the treatment with peace of mind.

Prevention
While it may not be possible to prevent Achilles tendinitis, you can take measures to reduce your risk. Increase your activity level gradually. If you're just beginning an exercise regimen, start slowly and gradually increase the duration and intensity of the training. Take it easy. Avoid activities that place excessive stress on your tendons, such as hill running. If you participate in a strenuous activity, warm up first by exercising at a slower pace. If you notice pain during a particular aerobic exercise fat, stop and rest. Choose your shoes carefully. The shoes you wear while exercising should provide adequate cushioning for your heel and should have a firm arch support to help reduce the tension in the Achilles tendon. Replace your worn-out shoes. If your shoes are in good condition but don't support your feet, try arch supports in both shoes. Stretch daily. Take the time to stretch your calf muscles and Achilles tendon in the morning, before exercise and after exercise to maintain flexibility. This is especially important to avoid a recurrence of Achilles tendinitis. Strengthen your calf muscles. Strong calf muscles enable the calf and Achilles tendon to better handle the stresses they encounter with activity and exercise. Cross-train. Alternate high-impact activities, such as running and jumping, with low-impact activities, such as cycling and swimming.