title: Patellar button dissociation in a mobile-bearing LCS patellofemoral joint arthroplasty.
abstract: Patellofemoral arthroplasty is an effective treatment for isolated patellofemoral arthritis. Midterm results reveal a success rate of approximately 80% to 90% with modern designs. The reported failure mechanisms associated with patellofemoral arthroplasty include progressive tibiofemoral arthritis, patellar pain, catching or subluxation caused by soft-tissue imbalance, component malposition, and problematic designs. We present a previously unreported new complication of patellar button dissociation in a mobile-bearing LCS Patellofemoral Joint Replacement Prosthesis.
authors.affiliation: Wrightington Hospital, Hall Lane, Appley Bridge, Wigan WN6 9EP, United Kingdom.
authors.forename: R
authors.initials: R
authors.lastname: Sreekumar
authors.forename: Sivaraman
authors.initials: S
authors.lastname: Subramanian
authors.forename: Aslam
authors.initials: A
authors.lastname: Mohammed
mesh_terms: D000328:Adult; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D005548:Foreign-Body Migration / Q000601:surgery*; D006801:Humans; D007720:Knee Prosthesis / Q000009:adverse effects*; D008297:Male; D011475:Prosthesis Failure