Pain to the side region of the foot at the level of the sinus tarsi of the subtalar joint. The subtalar joint allows pronation and supination (in and out ) motion of the heel bone at the subtalar joint.  People who develop this pain usually excessively pronate their feet or commonly have a flat foot.

Symptoms

• Pain with initial rising from a sitting position

• Pain sharp to the outside portion of the subtalar joint with extremes of joint motion like going up and down stairs

• No associated swelling

• Increase pain with barefoot walking

• No associated swelling of the painful region

Radiography

• X-rays are not helpful for this problem

Treatment

• Over the counter or custom orthotic with wedging of the orthotic to control foot pronation

• Use of supportive shoe with pronation control features including supportive midarch, torsional stability and rigid heel counters

• No barefoot walking during period of treatment

• Non-steroidal ant-inflammatory medications

• Possible cortisone injection