Prosthetic replacement of the arthritic knee after patellectomy.
The results of total knee replacement with a semiconstrained prosthesis after patellectomy are poor because the stabilizing effect of the patella is lost. A series of bicompartmental unicompartmental knee replacements (five patients) carried out for this condition was compared with a series of Insall-Burstein posterior stabilized knee prostheses (six patients). If both cruciate ligaments are present the results are not notably different, but those with an Insall-Burstein prosthesis generally fared better at stair-climbing using the replaced side as the lead leg. Since the Insall-Burstein knee is technically easier to implant there seems little to recommend the bicompartmental unicompartmental prosthesis in this condition.
Cameron
H U
HU
Department of Surgery, Orthopaedic and Arthritic Hospital, University of Toronto, Ont.
Jung
Y B
YB
D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D016118:Anterior Cruciate Ligament / Q000503:physiopathology; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007719:Knee Joint; D007720:Knee Prosthesis / Q000295:instrumentation / Q000592:standards*; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D010329:Patella / Q000601:surgery*; D016119:Posterior Cruciate Ligament / Q000503:physiopathology; D011446:Prospective Studies; D011859:Radiography