Friction and Cartilage Wear in Hemiarthroplasty: A Systematic Review of Key Influencing Factors.

ABSTRACT: Hemiarthroplasty addresses joint damage confined to one side, preserving native cartilage and bone, but accelerated degeneration of the opposing cartilage can compromise outcomes. This systematic review should clarify whether coefficient of friction (COF) reliably predicts cartilage wear when evaluating hemiarthroplasty bearing materials (HBMs). Thirty in vitro studies reporting both outcomes were identified. Data were extracted on COF, wear, and testing parameters, and wear was standardized using a 0-4 rubric to enable cross-study comparison. Three analytical approaches were applied: linear model fits, Pearson's correlations, and predictive modeling. Reported COFs increased significantly with testing time, while contact stress and sliding velocity showed variable associations with COF. Pr

SUBMITTER: Marino VP 

PROVIDER: S-EPMC12889880 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature