Achilles tendinitis is often a misnomer, as most problems associated with the Achilles tendon are not strictly an inflammatory response. A more appropriate term, which most experts now use, is Achilles tendinopathy which includes, Tendinosis, microtears in the tissues in and around the tendon. Tendinitis, inflammation of the tendon Most cases of Achilles tendon pain is the result of tendinosis. Tendon inflammation (tendinitis) is rarely the cause of tendon pain. Achilles tendinopathy is a common condition that occurs particularly in athletes and can be difficult to treat due to the limited vascular supply of the tendon and the stress within the Achilles tendon with every step. Evidence indicates that treatment incorporating custom foot orthoses can improve this condition by making the foot a more effective lever in gait. A 2008 study reported between 50 and 100% relief (average 92%) from Achilles tendinopathy symptoms with the use of custom foot orthoses.
A lot of stress on the feet is the cause of Achilles tendinitis. It is a common athletic injury. Things that can cause tendinitis include, pushing your body too fast and too soon, sudden increase in activity, sports that cause you to quickly start and stop, poor fitting shoes, bad footwear, severe injury to the Achilles tendon, running or exercising on uneven ground, running uphill, tight calf muscles, bone spur (extra bone growth in heel that rubs the tendon and causes pain), flat arches, feet that roll in (overpronation), and weak calf muscles, not warming up before exercising.
Paratenonitis presents in younger people. Symptoms start gradually and spontaneously. Aching and burning pain is noted especially with morning activity. It may improve slightly with initial activity, but becomes worse with further activity. It is aggravated by exercise. Over time less exercise is required to cause the pain. The Achilles tendon is often enlarged, warm and tender approximately 1 to 4 inches above its heel insertion. Sometimes friction is noted with gentle palpation of the tendon during ankle motion. Tendinosis presents similarly but typically in middle-aged people. If severe pain and limited walking ability are present, it may indicate a partial tear of the tendon.
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.
The latest studies on Achilles tendonitis recommend a treatment plan that incorporates the following three components. Treatment of the inflammation. Strengthening of the muscles that make up the Achilles tendon using eccentric exercise. These are a very specific type of exercise that has been shown in multiple studies to be a critical component of recovering from Achilles tendonitis. Biomechanical control (the use of orthotics and proper shoes). Shockwave therapy.
Surgery usually isn't needed to treat Achilles tendinopathy. But in rare cases, someone might consider surgery when rubbing between the tendon and the tissue covering the tendon (tendon sheath) causes the sheath to become thick and fibrous. Surgery can be done to remove the fibrous tissue and repair any small tendon tears. This may also help prevent an Achilles tendon rupture.
Stay in good shape year-round and try to keep your muscles as strong as they can be. Strong, flexible muscles work more efficiently and put less stress on your tendon. Increase the intensity and length of your exercise sessions gradually. This is especially important if you've been inactive for a while or you're new to a sport. Always warm up before you go for a run or play a sport. If your muscles are tight, your Achilles tendons have to work harder to compensate. Stretch it out. Stretch your legs, especially your calves, hamstrings, quadriceps, and thigh muscles - these muscles help stabilize your knee while running. Get shoes that fit properly and are designed for your sport. If you're a jogger, go to a running specialty store and have a trained professional help you select shoes that match your foot type and offer plenty of support. Replace your shoes before they become worn out. Try to run on softer surfaces like grass, dirt trails, or synthetic tracks. Hard surfaces like concrete or asphalt can put extra pressure on the joints. Also avoid running up or down hills as much as possible. Vary your exercise routine. Work different muscle groups to keep yourself in good overall shape and keep individual muscles from getting overused. If you notice any symptoms of Achilles tendonitis, stop running or doing activities that put stress on your feet. Wait until all the pain is gone or you have been cleared to start participating again by a doctor.