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INTRODUCTION The rotating platform flexion (RPF) Sigma total knee prosthesis (DePuy; Warsaw, Indiana) was designed for maintaining the contact of the condyles with their corresponding tibial plateau throughout the high-flexion range. However, this requires an additional 3-mm bone cut of the posterior condyles. Compared to the conventional design, this… (More)
Aneurysmal bone cysts rarely affect the carpus. We present a case of aneurysmal bone cyst affecting the lunate. Curettage and bone grafting of the lesion was successful, with no recurrence after 2 years of follow-up.