Revision of failed unicompartmental total knee arthroplasty.
Forty-eight revision total knee arthroplasties (TKAs) for failed unicompartmental total knee prostheses were evaluated at 5.4 +/- 2.5 years after revision. The most frequent mode of failure of the original arthroplasty was loosening. All revisions used a condylar-type prosthesis. Fifty percent of the knees had bone defects that were filled with cement. Good or excellent results were achieved in 81% of the knees. One knee had a complete radiolucent line adjacent to the tibia at last evaluation. The surgical complication rate was 13%. Predictable salvage of the failed unicompartmental TKA can be achieved by revision arthroplasty.
Lai
C H
CH
Department of Orthopedics, Mayo Clinic, Rochester, MN 55905.
Rand
J A
JA
D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000503:physiopathology; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000453:epidemiology; D011183:Postoperative Complications / Q000453:epidemiology; D011475:Prosthesis Failure; D011859:Radiography; D016059:Range of Motion, Articular; D012086:Reoperation; D016896:Treatment Outcome