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Subtalar Arthroscopy
Arthroscopy of the subtalar joint was first described in 1986. Since then, arthroscopic techniques have evolved, enabling both the diagnosis and management of pathologic processes distinct to the subtalar joint. Common indications for subtalar arthroscopy in the athlete include synovitis, loose body removal, sinus tarsi fibrosis, resection of a painful os trigonum, and osteochondral lesions. Presenting symptoms often include pain, swelling, stiffness, and locking. This chapter reviews the surgical steps for arthroscopy of the subtalar joint, including setup and positioning; instruments required; portal creation; procedures for os trigonum excision, sinus tarsi débridement, and treatment of osteochondral lesions; and postoperative protocols.