Achilles tendinitis is an inflammation of your Achilles tendon. It?s quite common in people who have psoriatic arthritis, reactive arthritis or ankylosing spondylitis. It can also
occur as an over-use injury in people who take part in excessive exercise or exercise that they?re not used to.
The Achilles tendon is a strong band of connective tissue that attaches the calf muscle to the heel bone. When the muscle contracts, the tendon transmits the power of this contraction to the heel,
producing movement. The Achilles tendon moves through a protective sheath and is made up of thousands of tiny fibres. It is thought that Achilles tendonitis develops when overuse of the tendon causes
the tiny fibres that make up the tendon to tear. This causes inflammation, pain and swelling. As the tendon swells it can begin to rub against the sheath surrounding it, irritating the sheath and
causing it too to become inflamed and swollen. It has a poor blood supply, which can make it susceptible to injury and can make recovery from injury slow. Factors that can lead to the development of
Achilles tendonitis include, tight or weak calf muscles, rapidly increasing the amount or intensity of exercise. Hill climbing or stair climbing exercises. Changes in footwear, particularly changing
from wearing high-heeled shoes to wearing flat shoes. Wearing inadequate or inappropriate shoes for the sporting activity being undertaken. Not adequately warming up and stretching prior to exercise.
A sudden sharp movement that causes the calf muscles to contract and the stress on the Achilles tendon to be increased. This can cause the tendon fibres to tear.
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,
Achilles tendonitis will often respond to rest or changes in activity, stretching, or ice after activity. Non-steroidal anti- inflammatory drugs (NSAIDs), such as ibuprofen or naproxen may also help.
Physical therapy focusing on stretching and strengthening, massage, alternating hot and cold baths, and ultrasound or sound waves can also help with healing and comfort. The temporary use of a heel
lift or the insertion of an arch support, called an orthotic, into the shoe or sneaker can also help. Although seldom necessary, the ankle may be kept in a short leg cast or splint. Surgery is rarely
needed but can remove bone spurs or the bony prominence of the heel bone. The injection of corticosteroids such as cortisone into the area of the Achilles tendon is usually avoided because it may
cause the tendon to rupture.
For paratenonitis, a technique called brisement is an option. Local anesthetic is injected into the space between the tendon and its surrounding sheath to break up scar tissue. This can be beneficial
in earlier stages of the problem 30 to 50 percent of the time, but may need to be repeated two to three times. Surgery consists of cutting out the surrounding thickened and scarred sheath. The tendon
itself is also explored and any split tears within the tendon are repaired. Motion is started almost immediately to prevent repeat scarring of the tendon to the sheath and overlying soft tissue, and
weight-bearing should follow as soon as pain and swelling permit, usually less than one to two weeks. Return to competitive activity takes three to six months. Since tendinosis involves changes in
the substance of the tendon, brisement is of no benefit. Surgery consists of cutting out scar tissue and calcification deposits within the tendon. Abnormal tissue is excised until tissue with normal
appearance appears. The tendon is then repaired with suture. In older patients or when more than 50 percent of the tendon is removed, one of the other tendons at the back of the ankle is transferred
to the heel bone to assist the Achilles tendon with strength as well as provide better blood supply to this area.
To prevent Achilles tendonitis or tendonosis from recurring after surgical or non-surgical treatment, the foot and ankle surgeon may recommend strengthening and stretching of the calf muscles through
daily exercises. Wearing proper shoes for the foot type and activity is also important in preventing recurrence of the condition.