title: Role of Patellofemoral Offset in Total Knee Arthroplasty: A Randomized Trial.
abstract: Total knee arthroplasty occasionally does not meet expectations. This randomized clinical trial assessed the effect of restoration of the native patellofemoral height on clinical outcomes. Group I underwent standard patellar bone resection; group II underwent modified patellar bone resection that adjusted the amount of anterior condylar bone removed and the anterior flange thickness. There were no differences in anterior knee pain, Western Ontario and McMaster Universities Arthritis Index scores, or Knee Injury and Osteoarthritis Outcome Score scores. Patellofemoral compartment height restoration versus patellar height alone does not appear to significantly reduce pain or improve function.
authors.affiliation: Joint Reconstruction, Department of Orthopaedic Surgery and Rehabilitation, University of Texas Health Science Center San Antonio, 7703 Floyd Curl Drive, MSC-7774, San Antonio, TX 78229, USA.
authors.forename: Louis S
authors.initials: LS
authors.lastname: Stryker
authors.affiliation: OrthoCarolina Research Institute, 2001 Vail Avenue, Suite 300, Charlotte, NC 28207, USA.
authors.forename: Susan M
authors.initials: SM
authors.lastname: Odum
authors.affiliation: OrthoCarolina Hip & Knee Center, 2001 Vail Avenue, Suite 200A, Charlotte, NC 28207, USA. Electronic address: Bryan.Springer@orthocarolina.com.
authors.forename: Bryan D
authors.initials: BD
authors.lastname: Springer
authors.affiliation: OrthoCarolina Hip & Knee Center, 2001 Vail Avenue, Suite 200A, Charlotte, NC 28207, USA.
authors.forename: Thomas K
authors.initials: TK
authors.lastname: Fehring
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D006801:Humans; D020370:Osteoarthritis, Knee / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery; D057071:Patellofemoral Joint / Q000000981:diagnostic imaging / Q000503:physiopathology*; D011859:Radiography; D016032:Randomized Controlled Trials as Topic; D016059:Range of Motion, Articular; D020127:Recovery of Function / Q000502:physiology*; D016896:Treatment Outcome
keywords: Patellofemoral joint; Randomized controlled trial; Subject outcome assessment; Total knee arthroplasty; Treatment outcome