title: Late spontaneous haemarthrosis: an unusual complication following an unicompartmental knee arthroplasty.
abstract: A man, aged 55, presented with a spontaneous haemarthrosis of his right knee, 1 year after an unicompartmental knee replacement. This case showed an atraumatic rupture of the metal marker wire of an all-polyethylene inlay tibial implant which caused a destruction of the polyethylene surface and a disseminated synovitis of the right knee. This is a rare but destructive complication following an unicompartmental knee arthroplasty.
authors.affiliation: Department of Orthopaedic and Trauma Surgery, St Nikolaus-Hospital Eupen, Hufengasse 4, 4700 Eupen, Belgium. janderaet@hotmail.com
authors.forename: Jan
authors.initials: J
authors.lastname: De Raet
authors.forename: Eddy
authors.initials: E
authors.lastname: Verhaven
authors.forename: Stefan
authors.initials: S
authors.lastname: Kemnitz
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects* / Q000379:methods; D006395:Hemarthrosis / Q000209:etiology* / Q000601:surgery; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D000074402:Synovectomy; D013585:Synovitis / Q000209:etiology / Q000601:surgery