Saddle-shaped rotating knee prosthesis outperforms low contact stress knee: A short-term retrospective comparative study.

ABSTRACT:

Purpose

This retrospective comparative study aimed to compare the native patellar alignment and clinical outcomes of the Rotating Concave-Convex (ROCC) knee, which features a saddle-shaped rotating platform (RP) insert and a deep trochlea, versus the low contact stress (LCS) knee, which has favourable long-term outcomes and features an anatomically shaped trochlea and a cruciate-sacrificing RP insert. We hypothesized that the deeper trochlea of the ROCC would further stabilize the native patella, resulting in superior clinical outcomes compared to LCS-RP.

Methods

Consecutive patients who underwent patellar-nonresurfacing primary total knee arthroplasty (TKA) using ROCC or LCS-RP were retrospectively reviewed. Patients with over 1-year post-TKA follow-up were included. Patien

SUBMITTER: Itoh M 

PROVIDER: S-EPMC11610624 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature