Minimal Clinically Important Difference of Oxford, Constant, and UCLA shoulder score for arthroscopic rotator cuff repair

Abstract

AimTo determine the Minimal Clinically Important Difference (MCID) for Constant-Murley score (CMS), University of California Los Angeles (UCLA) shoulder score, and Oxford Shoulder Scores (OSS) after arthroscopic rotator cuff (RC) repairs. Material and methods306 patients were followed up for 24-month. MCID for CMS, UCLA and OSS were determined using simple linear regression according to patient satisfaction and expectation fulfilment. ResultsThe following MCID were identified:12-month: CMS 6.7, UCLA 3.0, OSS 3.3.24-month: CMS 6.3, UCLA 2.9, OSS 2.7. ConclusionsThe various MCID could assist in meaningful interpretation of these scores and to power future comparative studies. Level of evidenceIII.