The Journal of Arthroplasty, PAPER #27| VOLUME 21, ISSUE 2, P308, FEBRUARY 01, 2006

Design-Specific Increase in Range of Motion With PFC Sigma RP-F: A Matched Control Study

Chitranjan S. Ranawat, MD Sanjay K. Gupta, MD B. Zikria, MD Joseph F. Zikria, BA V. Shah, DO Amar S. Ranawat, MD

Knee

The new PFC Sigma RP-F knee is designed to provide ROM of 155° without increasing contact stresses in the polyethylene by providing a third articulating surface and simultaneously allowing for proper patellar tracking. The purpose of this prospective study was to explore the question whether design-related ROM could be improved.

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