The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 175-181, February 2008

Midterm Results with the PFC Sigma Total Knee Arthroplasty System☆

Department of Orthopedic Surgery, St. Joseph's Medical Center, Baltimore, Maryland

Received 29 June 2006; accepted 27 March 2007. published online 10 October 2007.

Abstract 

We prospectively studied 207 consecutive patients (284 knees) undergoing total knee arthroplasty (June 1996 to December 1997) with a cemented tricompartmental Sigma PFC (DePuy Orthopaedics, Warsaw, Ind) total knee arthroplasty via a standard procedure (median follow-up, 87 months). Cruciate-retaining (272 knees, 96%) and cruciate-substituting (12, 4%) implants were used. There was one revision secondary to a ligament disruption after a fall. No implants were radiographically loose or at risk for loosening. Radiolucencies (none >2 mm or progressive) were shown on anteroposterior (7% of medial tibias) and lateral (17% of posterior femora) radiographs. Knee Society pain scores improved significantly (preoperative median, 20 points; postoperative median, 50 points [P < .001]). The PFC Sigma Knee system has excellent midterm durability.

Key words: arthroplasty, knee, osteoarthritis, prosthesis design

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☆ Benefits or funds were received in partial or total support of the research material described in this article. These benefits and/or support were received by the Orthopaedic Associates Research Foundation (Baltimore, MD) from DePuy Orthopaedics (Warsaw, Ind) BJ, ELS, Medical Editor.

PII: S0883-5403(07)00189-1

doi:10.1016/j.arth.2007.03.039

The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 175-181, February 2008

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