title: Premature failure of the polyethylene tibial bearing surface of the Interax knee arthroplasty.
abstract: Thirty-four patients (37 knees) were treated with the Interax knee arthroplasty. There were 31 female and 3 male patients with a mean age at surgery of 70 years (range, 53-84 years). Premature failure of the polyethylene tibial bearing surface occurred in 9 patients (9 knees). Eight patients of these required a revision operation because of early wearing out of the tibial surface 20 to 38 months after the operation. The failure was due to inadequate implant design in small component and polyethylene gamma irradiated in the air.
authors.affiliation: Department of Orthopaedic Surgery, Saiseikai Nara Hospital, Nara-shi, Nara, Japan.
authors.forename: Kazuya
authors.initials: K
authors.lastname: Sugimoto
authors.forename: Makoto
authors.initials: M
authors.lastname: Iwai
authors.forename: Kohjiro
authors.initials: K
authors.lastname: Okahashi
authors.forename: Kohji
authors.initials: K
authors.lastname: Kaneko
authors.forename: Motonari
authors.initials: M
authors.lastname: Tanaka
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Takakura
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000503:physiopathology; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020959:Polyethylene; D011475:Prosthesis Failure; D011859:Radiography; D016059:Range of Motion, Articular
chemical_list: D020959:Polyethylene