title: Expansion of an osteoarthritic cyst associated with wear debris: a case report.
abstract: 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.
authors.affiliation: Department of Orthopaedic Surgery, University of Oxford, England.
authors.forename: R
authors.initials: R
authors.lastname: Crawford
authors.forename: A
authors.initials: A
authors.lastname: Sabokbar
authors.forename: A
authors.initials: A
authors.lastname: Wulke
authors.forename: D W
authors.initials: DW
authors.lastname: Murray
authors.forename: N A
authors.initials: NA
authors.lastname: Athanasou
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee; D001845:Bone Cysts / Q000150:complications*; D005549:Foreign-Body Reaction; D006801:Humans; D007720:Knee Prosthesis / Q000009:adverse effects*; D008297:Male; D010003:Osteoarthritis / Q000150:complications*; D011475:Prosthesis Failure; D012086:Reoperation