Arthroscopic elbow surgery is a challenging procedure in part because of the limited intra-articular volume of the joint, the congruence of the elbow articulation, and the close proximity of the neurovascular structures. Arthritic conditions that result in the development of bony prominences and osteophytes are usually amenable to arthroscopic management and include diagnoses such as osteoarthritis, rheumatoid arthritis, and valgus extension overload syndrome. Safe and efficient removal of these osteophytes can be problematic, however, because of technical difficulties often encountered while using arthroscopic burrs and shavers as well as the risks of inadvertent, iatrogenic injury to adjacent articular cartilage and other structures. A valuable and effective technique using small handheld osteotomes to facilitate the arthroscopic removal of intra-articular osteophytes and other bony prominences is described and shown.

Collision tumors are the rare phenomenon of two histologically distinct tumors occurring in the same anatomic location. We report an unusual case of metastatic breast carcinoma colliding with primary grade 1 chondrosarcoma in the femur of a 58-year-old female.