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Responsiveness of outcome measures in patients with superior labral anterior and posterior lesions

, : Responsiveness of outcome measures in patients with superior labral anterior and posterior lesions. Shoulder & Elbow 6(4): 262-272

Evaluation of patients with superior labral anterior and posterior (SLAP) lesions requires outcome measures validated for the purpose. The present study aimed to evaluate the responsiveness of the Rowe score, Oxford Instability Shoulder Score (OISS), Western Ontario Shoulder Instability Index (WOSI) and EuroQol (EQ-5D and EQ-VAS) in patients treated for SLAP lesions. Eighty-nine patients were included: 34 had arthroscopic labral repair, 28 had mini-open biceps tenodesis and 27 had physical treatment. The outcome measures were administrated before treatment and after 6 months. Responsiveness was evaluated using standardized response mean (SRM), area under receiver-operating characteristic curve (ROCAUC), reliable chance proportion (RCP) statistics and hypothesis testing. Minimal clinically important change (MCIC) estimates were reported. All outcome measures had high values of SRM (0.86-1.92). RCPs for the improved group were 68% to 79% for OISS, WOSI and Rowe score, and 15% to 49% for EuroQol. ROCAUC was >0.70 for all outcomes. MCIC estimates were 8 and 10 for OISS; 451 and 569 for WOSI; 17 and 18 for Rowe score; 0.39 and 0.53 for EQ-5D; and 35 and 41 for EQ-VAS. Responsiveness tested with hypotheses favours the shoulder-specific outcomes. OISS, WOSI and Rowe score are more responsive than EuroQol in evaluation of patients with SLAP lesions.


PMID: 27582944

DOI: 10.1177/1758573214534650

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