Retention of superficially damaged femoral components after metal-backed patella component failure.
Metal-backed patellar components have been associated with high rates of failure often causing surface damage to the femoral component. Retention of a superficially damaged femoral component may be an alternative to a more extensive patellar and femoral component revision. Twenty-three metal-backed patellar components were revised. Superficially damaged femoral components were retained when a described set of criteria were met. At an average follow-up of 80.3 months, evidence of only 1 failure (4%) was observed. The Knee Society knee score improved from 69 to 88 (P < .001), whereas the Knee Society knee function score improved from 52 to 63 (P < .003). The findings from this study indicate that retaining a superficially damaged femoral component after metal-backed patella revision is a reasonable surgical option.
Department of Orthopaedic Surgery, University Hospitals Case Medical Center, Case Western Reserve University, Cleveland, Ohio 44106, USA.
Ryan M
RM
Garcia
Matthew J
MJ
Kraay
Victor M
VM
Goldberg
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D004868:Equipment Failure; D005260:Female; D005269:Femur / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008670:Metals; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D010329:Patella / Q000601:surgery*; D020959:Polyethylene; D012086:Reoperation; D016896:Treatment Outcome
D008670:Metals; D020959:Polyethylene