Infracalcaneal bursitis (inflammation of the bursa below the calcaneus, or heel bone) is one of the most common types of bursitis in the foot. Infracalcaneal bursitis can sometimes be difficult to differentiate from plantar fasciosis-another condition that causes pain below the heel. The key difference is that infracalcaneal bursitis tends to be worse at the end of the day whereas plantar fascia pain tends to be worse in the morning, immediately upon waking.
Improper foot wear, tight shoes or shoes that do not fit properly can cause extra pressure and friction on the back of the heel. Overtime, this pressure causes irritation of the bursae that protects the Achilles tendon causing one or both to swell and become inflamed. Athletes who overtrain or runners that increase their distance to quickly are at greater risk of experiencing Achilles bursitis. With over use, the Achilles bursae and tendon can become irritated and inflamed leading to thickening of the bursae lining and wearing of the tendon. Fluid builds in the bursa when it becomes irritated causing swelling of the Achilles bursa and pain at the back of the heel.
Unlike Achilles tendinitis, which tends to manifest itself slightly higher on the lower leg, Achilles tendon bursitis usually creates pain and irritation at the back of the heel. Possible signs of bursitis of the Achilles tendon include difficulty to rise on toes. Standing on your toes or wearing high heels may increase the heel pain. Inflammation and tenderness. The skin around your heel can become swollen and warm to the touch. Redness may be visible. Pain in the heel. Pain tends to become more prominent when walking, running, or touching the inflamed area. Stiffness. The back of your ankle may feel a little stiff due to the swelling of the bursa.
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
Treatment consists of anti-inflammatory therapy with the use of ice, short term non steroidal therapy including ibuprofen and naproxen and selective use of cortisone injections. Cortisone injections have been shown to be a highly effective anti-inflammatory measure for relieving foot and ankle pain. Care must always be taken by the physician to insure that the injection is administered into the bursal sac and not the Achilles tendon which can cause tendon injury. Treatment also consists of the use of heel lifts or the temporary use of a shoe with a low heel. The heel lift decreases the mechanical load on the Achilles tendon. Gentle stretching of the Achilles tendon, the possible use of a splint that is worn at night as well as physical therapy as directed by your physician can be employed. Temporary activity limitations for fitness must be incorporated into the treatment plan. Any weight bearing activity for exercise that actively lifts your heel off of the ground including running, walking stair stepper will interfere with effective conservative care. Low impact activity including biking and pool tend to be safe exercises during your recovery.
Surgery is rarely need to treat most of these conditions. A patient with a soft tissue rheumatic syndrome may need surgery, however, if problems persist and other treatment methods do not help symptoms.