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Updated: Nov 15, 2025

Author Spotlight: Double Posteromedial Approach for Treating Posterior Cruciate Ligament Cysts
Published on: October 20, 2023
Comparing patient reported outcomes in depuy sigma curved versus curved plus polyethylene inserts in cruciate
Ryan O'Donnell1, Kelsey Brown1, Van Krueger1
1Department of Orthopaedic Surgery, Brown University, Warren Alpert School of Medicine, Providence, RI, USA.
Abstract:
Total knee designs have evolved to allow more motion with compromising stability. The purpose of this study is to compare standard congruency and anterior lipped liners' effects on patient reported outcomes after TKA. 68 patients were retrospectively reviewed, and their SF-12 and KOOS scores were assessed preoperatively and one year post-operatively. Two-sample t-tests were used to compare differences between groups. The CVD design had a statistically significant greater improvement in KOOS-Pain compared to CVD+. No statistical difference was observed in the outcomes. The results may suggest that higher congruency designs lead to less physiological joint kinematics and pain.

