What Are the Biomechanical Features and Metrics for Native Hip Instability? Consensus Statements From a Scoping Review and an International Multidisciplinary Delphi Study

Clinically, this study sets a biomechanical benchmark defining native hip instability, enabling researchers to better distinguish between physiological laxity and pathologic instability. By defining biomechanical features of hip instability-most notably femoral head translation > 3 mm-this work contributes to a more standardized approach for defining joint stability, integrating bony morphology, capsulolabral integrity, and muscular stabilization. Such biomechanical insights guide surgical decision-making regarding capsular management and soft tissue repair and inform targeted rehabilitation strategies aimed at restoring hip stability.