This nagging injury can be long-lasting if not treated - and if your running form needs some work. The name Achilles is said to be a combination of two Greek words that together mean ?grief of the people.? The injury that bears that hero?s name, in honor of his only weakness, certainly aggrieves many runners, with Achilles tendinitis accounting for around 10 percent of running injuries. Technically, Achilles tendinitis is acute inflammation of the tendon that runs along the back of the ankle. Pain in that area for longer than a couple weeks is not really tendinitis anymore. Athletes, however, tend to characterize any pain along the tendon above the back of the heel as Achilles tendinitis. Achilles tendinitis can be confused with other injuries, such as heel problems, but the hallmark sign is if you?re pinching the Achilles and it?s really sore.
Over-pronation, injury and overstresses of the tendon are some of the most common causes. Risk factors include tight heel cords, poor foot alignment, and recent changes in activities or shoes. During a normal gait cycle, the upper and lower leg rotate in unison (i.e. internally during pronation and externally during supination). However, when a person over-pronates, the lower leg is locked into the foot and therefore continues to rotate internally past the end of the contact phase while the femur begins to rotate externally at the beginning of midstance. The Gastrocnemius muscle is attached to the upper leg and rotates externally while the Soleus muscle is attached to the lower leg and rotates internally during pronation. The resulting counter rotation of the upper and lower leg causes a shearing force to occur in the Achilles tendon. This counter rotation twists the tendon at its weakest area, namely the Achilles tendon itself, and causes the inflammation. Since the tendon is avascular, once inflammation sets in, it tends to be chronic.
Symptoms of acute achilles tendonitis will be a gradual onset of achilles pain at the back of the ankle, just above the heel bone. This may develop over a period of days. The achilles tendon may be painful and stiff at the start of exercise and first thing in the morning. As the tendon warms up the pain will go often for it to return later in the day or towards the end of a prolonged training session. The tendon will be very tender on palpation or pressing in on the achilles tendon or squeezing it from the sides. Chronic achilles tendonitis may follow on from acute achilles tendonitis if it goes untreated or is not allowed sufficient rest. Chronic achilles tendonitis is a difficult condition to treat, particularly in older athletes who appear to suffer more often.
There is enlargement and warmth of the tendon 1 to 4 inches above its heel insertion. Pain and sometimes a scratching feeling may be created by gently squeezing the tendon between the thumb and forefinger during ankle motion. There may be weakness in push-off strength with walking. Magnetic resonance imaging (MRI) can define the extent of degeneration, the degree to which the tendon sheath is involved and the presence of other problems in this area, but the diagnosis is mostly clinical.
There is insufficient evidence from randomised controlled trials to determine which method of treatment is the most appropriate for the treatment of acute or chronic Achilles tendonitis. The patient should abstain from aggravating activities, but with a minimum of rest in order to preserve overall fitness. Possible treatments are non-steroidal anti-inflammatory drugs (NSAIDs), ice, rest, increased warm-up/stretching exercises, physiotherapy and heel lifts (orthotic devices - used on both sides to prevent a gait imbalance). Other treatments evaluated in a Cochrane review were heparin, steroid injections, glycosaminoglycan sulfate, Actovegin?, and topical laser treatment. There was no clear evidence of benefit from these. Casting is an option for resistant Achilles tendonitis. Drugs - analgesics and NSAIDs. Surgery is sometimes used for resistant Achilles tendonitis, but usually as a last resort. Other recently reported treatments include continuing sporting activity in conjunction with rehabilitation, low-energy shock wave therapy and topical glyceryl trinitrate .
Surgery is considered the last resort and is often performed by an orthopedic surgeon. It is only recommended if all other treatment options have failed after at least six months. In this situation, badly damaged portions of the tendon may be removed. If the tendon has ruptured, surgery is necessary to re-attach the tendon. Rehabilitation, including stretching and strength exercises, is started soon after the surgery. In most cases, normal activities can be resumed after about 10 weeks. Return to competitive sport for some people may be delayed for about three to six months.
Stretching of the gastrocnemius (keep knee straight) and soleus (keep knee bent) muscles. Hold each stretch for 30 seconds, relax slowly. Repeat stretches 2 - 3 times per day. Remember to stretch well before running strengthening of foot and calf muscles (eg, heel raises) correct shoes, specifically motion-control shoes and orthotics to correct overpronation. Gradual progression of training programme. Avoid excessive hill training. Incorporate rest into training programme.