Retrocalcaneal bursitis is the inflammation of the fluid-filled sac (bursa) at the back of the heel bone (calcaneus). The retrocalcaneal bursa is located between the Achilles tendon and the heel bone and is designed to reduce friction between the Achilles tendon and the heel bone. During contraction of the calf muscle, tension is generated through the Achilles tendon and it rubs against the retrocalcaneal bursa. When there is excessive friction due to repetitive rubbing of the tendon against the bursa or high impact force translating through the Achilles tendon, irritation and inflammation of the bursa may occur. The inflammation can also be aggravated by pressure, such as when athletes wear tight-fitting shoes. This condition is often mistaken for Achilles tendinitis but it can also occur in conjunction with Achilles tendinitis.
Bursitis has many causes, including autoimmune disorders, crystal deposition (gout and pseudogout), infectious diseases, traumatic events, and hemorrhagic disorders, as well as being secondary to overuse. Repetitive injury within the bursa results in local vasodilatation and increased vascular permeability, which stimulate the inflammatory cascade.
A person with bursitis can have one or more of the symptoms below. Pain, the pain increases with movement or pressure. Tenderness is felt even without movement. Swelling. Loss of movement. If the bursitis is caused by an infection it is called Septic Bursitis. The patient with septic bursitis may have the following additional symptoms. Fever. The affected area is red. The affected area feels hot when touched.
The diagnosis is based on the symptoms and an examination. For anterior Achilles tendon bursitis, doctors use x-rays to rule out a fracture of the heel bone or damage to the heel bone caused by rheumatoid arthritis or other inflammatory arthritis.
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.
Bursectomy is a surgical procedure used to remove an inflamed or infected bursa, which is a fluid-filled sac that reduces friction between tissues of the body. Because retrocalcaneal bursitis can cause chronic inflammation, pain and discomfort, bursectomy may be used as a treatment for the condition when it is persistent and cannot be relived with other treatments. During this procedure, a surgeon makes small incisions so that a camera may be inserted into the joint. This camera is called an arthroscope. Another small incision is made so that surgical instruments can be inserted to remove the inflamed bursa.