LAUSR

Osteoid osteoma is a benign bone tumor that is characteristically more common in children and young adults and presents with severe pain that worsens at night and decreases with use of nonsteroidal anti-inflammatory drugs (NSAIDs). A characteristic radiological feature is the nidus, a round or oval radiolucent area with surrounding sclerotic bone. The tumor commonly occurs in the cortex of the diaphysis or metaphysis of a long bone such as the femur and tibia. The literature contains reports of intraor juxta-articular osteoid osteoma in the knee, elbow, hip, and ankle joints. Although the traditional surgical route for osteoid osteoma has been open excision of the lesion, less invasive surgeries, such as computed tomography (CT)-guided radiofrequency ablation (RF) and arthroscopic excision, have been reported to have good prognoses, especially for tumors in the intraor juxtaarticular regions. In this case report, we describe a young athlete with juxta-articular osteoid osteoma in the calcaneus, a rare location for this variety of tumor. In this case, excision of the osteoma was performed with subtalar arthroscopy, and the patient was able to achieve early return to athletic activity. This report describes the successful outcome of arthroscopic excision of an osteoma and aims to add to the literature by providing a reference for future athletes and their physicians when considering treatment options in similar cases.