Arthroscopic Excision of the Juxta-Articular Osteoid Osteoma From the Calcaneus at the Sinus Tarsi

Osteoid osteoma (OO) is a benign bone tumor that can rarely occur in the sinus tarsi, where its nonspecific symptoms may lead to delayed or incorrect diagnosis. When identified in this location, arthroscopic excision offers a minimally invasive and precise approach for management, although reports of its use remain limited. When OO is suspected in the sinus tarsi, based on clinical findings and confirmed through imaging, arthroscopic resection may be considered. Using standard anterior ankle portals, the surgeon can access and excise the lesion with minimal disruption to surrounding structures. Histological confirmation should be obtained, and thorough debridement of the nidus is essential to prevent recurrence. Arthroscopic excision of osteoid osteoma in the sinus tarsi is a safe and effective technique that facilitates accurate lesion removal while preserving adjacent anatomy. This method serves as a viable alternative to open excision or radio frequency ablation in appropriate cases.