Achilles-tendinitis is characterized by inflammation and pain at the Achilles tendon (back of the ankle). This tendon, sometimes called the heel cord, is the tendon attachment of the calf muscles from the leg and knee to the heel. This structure is important in standing on your toes or in the pushing-off phase of walking, running, or jumping.Achilles-tendinitis is usually a grade 1 or 2 strain of the tendon. A grade 1 strain is a mild strain. There is a slight pull of the tendon without obvious tendon tearing. (There is microscopic tendon tearing.) There is no loss of strength, and the tendon is the correct length. A grade 2 strain is a moderate strain. There is tearing of tendon fibers within the substance of the tendon or where the tendon attaches to muscle or bone. The length of the tendon or whole muscle-tendon-bone unit is increased, and there is usually decreased strength. A grade 3 strain is a complete rupture of the tendon.
Short of a trauma, the primary cause of Achilles tendonitis is when the calf muscle is so tight that the heel is unable to come down to the ground placing extreme stress on the Achilles tendon at the insertion. Keep in mind that the calf muscle is designed to contract up, lifting the heel bone off the ground, propelling you forwards to the front of the foot for push off. When the calf is so tight that the heel is prevented from coming down on the ground there will be stress on the tendon and the foot will over pronate causing the Achilles tendon to twist, adding to the stress on the insertion. Improper treatment may lead to a more severe injury, such as a rupture or chronic weakening, which may require surgery.
There are several types of Achilles tendinitis symptoms, but all of them are closely related. People who suffer from Achilles tendon pain typically have swelling in the Achilles tendon, and that pain can be chronic as the microscopic tears in the area become more prevalent over time. The most intense pain is typically located just a few centimeters above the area where the tendon meets the heel. This area is called the watershed zone, and the amount of blood moving through it is what gives it the highest potential for injury, especially for athletes. Most of the Achilles tendinitis symptoms in people with the condition will happen immediately after they have been inactive for a fairly significant amount of time. That means that the most pain will generally be felt after sitting or lying down for an extended period, or right after waking up in the morning and getting moving. If you aren?t positive that you are suffering specifically from Achilles tendinitis symptoms, consult a doctor to make sure.
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.
Relieving the stress is the first course of action. Treatment involves ice therapy and activity modification to reduce inflamation. Active stretching and strengthening exercises will assist rehabilitation of the gastrocnemius-soleus complex. When placed in a heeled shoe, the patient will immediately notice a difference, compared to flat ground. It is recommended that the patient be fitted with proper shoes & orthotics to control pronation and maintain proper alignment, relieving the stress on the achilles tendon. Tightness in the tendon itself can be helped by an extra heel lift added to the orthotics. The patient can expect a slow recovery over a period of months.
Chronic Achilles tendon tears can be more complicated to repair. A tendon that has torn and retracted (pulled back) into the leg will scar in the shortened position over time. Restoring normal tendon length is usually not an issue when surgery is performed within a few weeks of the injury. However, when there has been a delay of months or longer, the treatment can be more complicated. Several procedures can be used to add length to a chronic Achilles tear. A turndown procedure uses tissue folded down from the top of the calf to add length to the Achilles tendon. Tendon transfers from other tendons of the ankle can also be performed to help restore function of the Achilles. The results of surgery in a chronic situation are seldom as good as an acute repair. However, in some patients, these procedures can help restore function of a chronically damaged Achilles.
Do strengthening and stretching exercises to keep calf muscles strong and flexible. Keep your hamstring muscles flexible by stretching. Warm up and stretch adequately before participating in any sports. Always increase the intensity and duration of training gradually. Do not continue an exercise if you experience pain over the tendon. Wear properly fitted running and other sports shoes, including properly fitted arch supports if your feet roll inwards excessively (over-pronate).