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We present a case in which the growth of an intraosseous cyst arising from the proximal tibiofibular joint appeared to have been increased by polyethylene wear particles from a medial unicompartmental knee replacement. Histological examination of the cyst wall showed a histiocytic response associated with numerous polyethylene wear particles. This case demonstrates that there is a direct communication between the joint cavity and the cyst. Such communication is probably through openings in the articular cartilage large enough to allow the passage of these particles.

Type

Journal

J Bone Joint Surg Br

Publication Date

11/1998

Volume

80

Pages

990 - 993

Keywords

Aged, Arthroplasty, Replacement, Knee, Bone Cysts, Foreign-Body Reaction, Humans, Knee Prosthesis, Male, Osteoarthritis, Prosthesis Failure, Reoperation