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J Knee Surg 2009; 22(3): 275-278
DOI: 10.1055/s-0030-1247763
DOI: 10.1055/s-0030-1247763
Case Report
© 2009 Thieme Medical Publishers
Patellar Button Dissociation in a Mobile-Bearing LCS Patellofemoral Joint Arthroplasty
Further Information
Publication History
Publication Date:
14 January 2010 (online)
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.