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Midterm Outcomes and Survivorship of Anterior Stabilized Versus Cruciate Retaining Bearing in Primary Total Knee Arthroplasty.
Law, Jesua I; Hurst, Jason M; Morris, Michael J; Berend, Keith R; Lombardi, Adolph V; Crawford, David A.
Afiliação
  • Law JI; Joint Implant Surgeons, Inc., New Albany, OH; Mount Carmel Health System, New Albany, OH.
  • Hurst JM; Joint Implant Surgeons, Inc., New Albany, OH; Mount Carmel Health System, New Albany, OH.
  • Morris MJ; Joint Implant Surgeons, Inc., New Albany, OH; Mount Carmel Health System, New Albany, OH.
  • Berend KR; Joint Implant Surgeons, Inc., New Albany, OH; Mount Carmel Health System, New Albany, OH.
  • Lombardi AV; Joint Implant Surgeons, Inc., New Albany, OH; Mount Carmel Health System, New Albany, OH; Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH.
  • Crawford DA; Joint Implant Surgeons, Inc., New Albany, OH.
J Arthroplasty ; 36(3): 998-1002, 2021 03.
Article em En | MEDLINE | ID: mdl-33268208
BACKGROUND: There has been increasing utilization of ultracongruent bearings with a cruciate retaining (CR) femoral component in primary total knee arthroplasty. The purpose of this study is to compare outcomes and survivorship between an ultracongruent anterior stabilized (AS) and CR bearing. METHODS: A retrospective review was performed from 2010 through 2014 of all primary total knee arthroplasties with a single knee systems identical CR femur and AS or CR bearing with minimum 2-year follow-up yielding a study cohort of 3323 patients (4164 knees). Knee range of motion, Knee Society pain scores, Knee Society clinical scores, Knee Society functional scores, and University of California Los Angeles activity scores were evaluated. The need for manipulation under anesthesia (MUA), nonrevision surgery and revisions were assessed. RESULTS: AS bearing was used in 1471 knees (35%) and CR bearing used in 2693 knees (65%). Mean follow-up was 5.4 years. The AS group had significantly higher improvements in knee range of motion, Knee Society clinical, Knee Society functional, and Knee Society pain scores. MUAs were performed on 120 knees (8.2%) in the AS group compared with 158 knees (5.9%) in the CR group (P = .005). The AS group had significantly less all-cause failure, aseptic failures, revisions for instability, and revisions for isolated polyethylene wear. The 10-year aseptic survival for AS was 98.3% and for 92.3% for the CR group (P = .002). CONCLUSION: These mid-term results demonstrate the AS bearing had significantly higher improvements in clinical and functional outcomes as well as greater survivorship. Knees in which an AS bearing was used did have a higher incidence of MUA.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Artroplastia do Joelho / Prótese do Joelho Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Artroplastia do Joelho / Prótese do Joelho Idioma: En Ano de publicação: 2021 Tipo de documento: Article