There is a thick walled fluid filled bursa between the Achilles tendon and the calcaneal bone. The color Doppler images show hypervascularity of the bursal wall. A minimal amount of fluid in the retrocalcaneal bursa can often be found. A retrocalcaneal bursitis is caused by friction of the Achilles tendon over the upper part of the calcaneal bone. It is often an overuse injury found in athletes.
Feet are extremely resilient and are designed to stand up to the pressures of day-to-day living. In some cases, though, foot structures may break down when subjected to chronic stress associated with long periods of weight-bearing activity on concrete, asphalt, or other hard surfaces (especially when footwear does not allow for proper weight distribution). Foot problems, including infracalcaneal bursitis, are often made worse by poorly designed footwear, and pressure, impact, and shear forces can damage the feet over time. Bursal sacs are intended to minimize this damage, but sometimes the bursa itself becomes inflamed. A rapid increase in physical activity levels or thinning of the heel?s protective fat pad are factors that may contribute to infracalcaneal bursitis. Other possible causes of infracalcaneal bursitis include blunt force trauma. Arthritic conditions. Acute or chronic infection. The following factors may increase a person?s risk of bursitis, including infracalcaneal bursitis. Poor conditioning. Exposure to cold weather. Participating in contact sports. Having a previous history of bursitis in any joint. Heel striking when running, especially in conventional running shoes with heel elevation.
In retrocalcaneal bursitis, pain at the back of the heel is the main complaint from patients. Pain may worsen when tip-toeing, running uphill, jumping or hopping. Often, those who are accustomed to wearing high-heeled shoes on a long-term basis may also complain of pain at the back of the heel when switching to flat shoes. This is because when in high-heeled shoes, the calf muscle and the Achilles tendon are in a shortened position. Switching to flat shoes would cause an increased stretch to the calf muscle and Achilles tendon, irritating the Achilles tendon and the retrocalcaneal bursa. Other symptoms may include redness and swelling at the back of the heel.
Diagnosis of heel bursitis can be made by your health practitioner and is based on the following. Assessing the location of the pain by palpating the back of the heel. Assessment of any inflammation at the back of the heel. Assessment of biomechanics and foot function. Ultrasound or MRI can reveal inflammation of the retro calcaneal bursa.
Non Surgical Treatment
Treatments should involve decreasing swelling, relieving pain and stress on the Achilles, correcting any biomechanical dysfunction (over-pronation or flat feet), treating scar tissue, and then restoring strength and movement. If you are performing an activity that could cause further trauma to the bursa, it is recommended that you protect the area with padding and/or proper footwear to prevent further irritation or damage.
Surgery is rarely done strictly for treatment of a bursitis. If any underlying cause is the reason, this may be addressed surgically. During surgery for other conditions, a bursa may be seen and removed surgically.
You may be able to prevent bursitis from happening or coming back. Continue your home treatment with rest, ice, pain relievers, and gentle exercises. When you are ready to try the activity that caused the pain, start slowly and do it for short periods or at a slower speed. Warm up before and stretch after the activity. Increase your activity slowly, and stop if it hurts. Use ice afterward to prevent pain and swelling. Change the way you do activities with repeated movements that may strain your muscles or joints. For example if using a certain tool has caused bursitis, start switching hands or change the grip size of your tool. If sitting for long periods has caused bursitis, get up and walk around every hour. If a certain sport is causing bursitis, consider taking lessons to learn proper techniques. Have an expert check your equipment to make sure it’s well suited to your size, strength, and ability. If certain activities at work may be causing bursitis, talk to your human resources department about other ways of doing your job, equipment changes, or other job assignments. Protect your joints from pressure. Cushion knees or elbows on hard surfaces, and wear shoes that fit you well and have good support.