Évaluation du MASSS (Multiple Assessment Subjective Shoulder Score). Une étude pilote - 02/07/22

Evaluation of the Multiple Assessment Subjective Shoulder Score (MASSS). A pilot study

Doi : 10.1016/j.rcot.2022.05.001

Ellis Yee ^a, Martin Franke ^b, Geoffrey Smith ^a,^c,^⁎
^a The University of New South Wales, Kensington NSW 2052, Australia
^b University of Western Sydney, Campbelltown NSW 2560, Australia
^c Suite 201, Level 2 131 Princes Highway, South St, Kogarah NSW 2217, Australia

^⁎Auteur correspondant.

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Abstract

Introduction

This study compares an entirely patient reported modification of the Constant-Murley Score (CS) (the Multiple Assessment Subjective Shoulder Score [MASSS]), with the CS in symptomatic patients with non-instability shoulder pathology.

Hypothesis

The hypothesis is that the sub scores and overall score of the MASSS will be well correlated and in high agreement to the corresponding scores of the CS.

Materials and methods

The MASSS, the CS and adjusted-CS (a-CS) were administered to 74 patients. The MASSS replaced the strength and ROM domains of the CS with SANE scores. Correlations, differences, agreement, test-retest reliability, and internal consistency were assessed using Pearson's R test, paired t-test, Bland-Altman method, intraclass correlations (ICC) and Cronbach's alpha.

Results

Correlation between MASSS and CS (0.834) and a-CS (0.824) were excellent. Total MASSS (54.0) was higher than CS (41.8) (p<0.001) and a-CS (47.8) (p<0.05). MASSS strength and ROM domains were higher than those of the CS (Strength: 13.4 v 5.3 [p<0.001], ROM: 24.8 v 20.8 [p<0.001]. There was a floor effect for the strength domain of the CS (46.7 % minimum score), but not the MASSS (0 % minimum score). MASSS internal consistency (0.626-0.734) was better than the CS (0.401-0.643). Test re-test reliability of the total MASSS (ICC 0.93) and the strength (ICC 0.90) and ROM (ICC 0.86) domains was excellent.

Discussion

The MASSS has several advantages over the CS. Although the correlation of the total MASSS with the CS and a-CS was high, there was poor agreement in the strength and the ROM domains and therefore the MASSS value is not interchangeable with the CS, but rather should be considered as an alternative.

Level of evidence

II; Prospective cohort study.

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Keywords : Patient reported outcome measures (PROMs), Shoulder, Surgery, Multiple Assessment Subjective Shoulder Score (MASSS)

☆	Cet article peut être consulté in extenso dans la version anglaise de la revue Orthopaedics & Traumatology: Surgery & Research sur Science Direct (sciencedirect.com) en utilisant le DOI ci-dessus.