This article is more than 5 years old. Information may no longer be current.
Fixed-bearing, rotating-platform prostheses in TKA yielded favorable results
Results published in Orthopedics showed favorable clinical and radiographic results among patients who underwent total knee arthroplasty with a cemented, posterior-stabilized fixed-bearing prosthesis in one knee and a cemented rotating-platform prosthesis in the other knee.
Researchers analyzed 100 patients undergoing bilateral, simultaneous primary TKA with a posterior-stabilized fixed-bearing prosthesis (Optetrak, Exactech) in one knee and a rotating-platform prosthesis (Optetrak, Exactech) in the other knee. Investigators used the Knee Society clinical rating system, the WOMAC index questionnaire and the University of California at Los Angeles (UCLA) activity score to evaluate patients.
At final follow-up, results showed a mean Knee Society knee score of 90 points and 92 points in the fixed-bearing group and rotating-platform group, respectively. Both the fixed-bearing group and the rotating-platform group had a mean WOMAC index score of 16 points. Researchers also noted a mean UCLA activity score of 6.5 points in both groups at final follow-up. Neither aseptic loosening of the components nor osteolysis occurred in any knee. At 10.4 years, researchers found a predicted implant survival of 99% as the endpoint of any reoperation in both groups. – by Casey Tingle
Disclosures: The authors report no relevant financial disclosures.