Pain at the posterior heel or posterior ankle is most commonly caused by pathology at the posterior calcaneus, the Achilles (calcaneal) tendon, or the associated bursae. The following bursae are located just superior to the insertion of the Achilles tendon. Subtendinous calcaneal bursa. This bursa (also called the retrocalcaneal bursa), situated anterior (deep) to the Achilles tendon, is located between the Achilles tendon and the calcaneus. Subcutaneous calcaneal bursa. Also called the Achilles bursa, it is found posterior (superficial) to the Achilles tendon, lying between the skin and the posterior aspect of the distal Achilles tendon. Inflammation of one or both of these bursae can cause pain in the posterior heel and ankle regions.
Overtraining in a runner (eg, excessive increases in miles or intensity). Tight or poorly fitting shoes that, because of a restrictive heel counter, exert excessive pressure on the posterior heel and ankle
Haglund deformity, causing impingement between the increased posterior superior calcaneal prominence and the Achilles tendon during dorsiflexion. More recent research suggests that a misaligned subtalar joint axis (measured in terms of joint inclination and deviation) in relation to the Achilles tendon can result in an asymmetrical force load on the tendon, disrupting normal biomechanics. This altered joint axis is associated with an increased risk for Achilles pathologies, including bursitis.
The following are the most common symptoms of bursitis. However, each individual may experience symptoms differently. Bursitis can cause pain, localized tenderness, and limited motion. Swelling and redness may occur if the inflamed bursa is close to the surface (superficial). Chronic bursitis may involve repeated attacks of pain, swelling, and tenderness, which may lead to the deterioration of muscles and a limited range of motion. The symptoms of bursitis may resemble other medical conditions or problems. Always consult your doctor for a diagnosis.
Your doctor will check for bursitis by asking questions about your past health and recent activities and by examining the area. If your symptoms are severe or get worse even after treatment, you may need other tests. Your doctor may drain fluid from the bursa through a needle (aspiration) and test it for infection. Or you may need X-rays, an MRI, or an ultrasound.
Non Surgical Treatment
Relieving the symptoms of bursitis initially focuses on taking the pressure off the bursa. This can be done with proper cushioning, inserts, or footwear but may require surgery if it is a bone formation problem (i.e. Huglund's Deformity). If your bursitis is caused by an infection (septic bursitis), the doctor will probably drain the bursa sac with a needle and prescribe antibiotics to treat the infection.
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.