title: [Results 2 to 5 years after implantation of the cement-free "APS" total knee prosthesis. A retrospective study of the first 160 cases].
abstract: One hundred-and-forty-seven out of 160 cementless APS total knees replacements have been clinically and radiologically evaluated with a mean follow-up period of 38 (24-60) months. Primary diagnosis has been osteoarthrosis in two thirds and rheumatoid arthritis in one. Reoperations have been performed in 4.9% due to aseptic loosening of the tibial tray, and in 3.7% due to patellar problems (aspetic loosening in 1.2% and luxation in 2.5%). There have been three late infections of the joint leading to arthrodesis in two or exchange operation in one case. The radiologic course of the remaining 126 implants showed excellent or good osseous integration of the implants in more than 80%. We were able to show that rheumatoid arthritis as well as malimplantation of the prosthesis can decrease the rate of osseous integration.
authors.affiliation: Orthopädische Abteilung am Pulmologischen Zentrum der Stadt Wien.
authors.forename: P
authors.initials: P
authors.lastname: Zenz
authors.forename: W
authors.initials: W
authors.lastname: Schwägerl
authors.forename: S
authors.initials: S
authors.lastname: Jantsch
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D016348:Osseointegration / Q000502:physiology; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000601:surgery*; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D011475:Prosthesis Failure; D011859:Radiography; D014025:Titanium
chemical_list: D014025:Titanium
vernacular_title: Zwei bis fünf Jahresergebnisse nach Implantation der zementfreien "APS" Knietotalprothese. Eine retrospektive Studie der ersten 160 Fälle.