title: The clinical history of mobile-bearing patella components in total knee arthroplasty.
abstract: Two hundred fifty-six primary cementless meniscal-bearing total knee arthroplasties were performed between May 1985 and January 1989. All knees were replaced with a low contact stress metal-backed anatomic mobile patella. The average patient follow-up was 11.5 years. No patellae were revised for failure of fixation and no dislocations or subluxations were reported. One patella was revised for polyethylene wear, and one well-functioning component was removed at the time of revision to facilitate range of motion and wound closure. The survival estimate at 12 years was 99.5%. Compared to the high incidence of failure of metal-backed fixed-bearing patellae components, the anatomic rotating patella provides durable long-term results with a low incidence of complications.
authors.affiliation: Jordan-Young Institute, Virginia Beach, VA, USA.
authors.forename: Louis R
authors.initials: LR
authors.lastname: Jordan
authors.forename: James E
authors.initials: JE
authors.lastname: Dowd
authors.forename: Jane L
authors.initials: JL
authors.lastname: Olivo
authors.forename: Paul E
authors.initials: PE
authors.lastname: Voorhorst
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D010329:Patella; D011474:Prosthesis Design; D012189:Retrospective Studies; D016896:Treatment Outcome