Measurement properties of the German Unité Rhumatologique des Affections de la Main (URAM) scale in patients treated for Dupuytren's disease

The Italian version of the Unité Rhumatologique des Affections de la Main (URAM) for Dupuytren's disease: The URAM-I(10)

Introduction

Several general hand functional assessment tools for Dupuytren's disease have been reported, but none of the patient-reported-outcome measures specific to Dupuytren's disease-associated disabilities are available in the Italian language. The purpose of this study was to culturally adapt the Unité Rhumatologique des Affections de la Main (URAM) into Italian (URAM-I) and determine its measurement properties.

Methods

Cross-cultural adaptation was performed according to the current guidelines. Construct validity (convergent and divergent validity) was measured by comparing the URAM-I with the Pain-Rated Wrist/Hand Evaluation (PRWHE-I), Short-Form 36 (SF-36-I) scale and finger range of motion, respectively. Factor analysis was used to investigate the URAM-I's internal structure. Reliability was assessed by internal consistency (Cronbach's alpha) and test-retest reliability by Intra-Class Correlation Coefficient (ICC).

Results

This study included 96 patients (males = 85%, age = 66.8 ± 9.3). Due to the cultural adaptation, we divided the original item #1 into two separate items, thus generating the URAM-I(10). Convergent validity analysis showed a strong positive (r = 0.67), significant (p < 0.01) Pearson's correlation with the PRWHE-I. Divergent validity analysis showed a weak, negative (r < 0.3) and not significant correlation with the SF-36-I subscales, except for the physical pain subscale (r = -0.21, p < 0.05). Factor analysis revealed a 2-factor, 4-item solution that explained 76% of the total variance. The URAM-I(10) demonstrated high internal consistency (α = 0.94) and high test-retest reliability (ICC = 0.97).

Conclusion

The URAM-I(10) demonstrates moderate construct validity, high internal consistency and test-retest reliability, and showed a 2-factor internal structure. Its evaluative use can be suggested for the Italian Dupuytren's population.

Measuring functional outcome in Dupuytren's disease: A systematic review of patient-reported outcome measures

BACKGROUND

Functional impairments related to Dupuytren's disease (DD) can be assessed using patient-reported outcome measures (PROMs). A systematic review was published in 2013 on outcome measures for assessing treatment in individuals with DD; however, several articles have since been published on this matter.

PURPOSE

To conduct a systematic review to analyze the quality and content of the evidence on the psychometric properties of PROMs used in individuals with DD.

STUDY DESIGN

Systematic review.

METHODS

CINAHL, EBM reviews, Embase, Medline, and Web of Science were searched to identify studies evaluating the psychometric properties of PROMs used with individuals with DD. All studies retained were appraised by two independent assessors using two validated critical appraisal tools.

RESULTS

Fifteen articles on the psychometric properties of 10 PROMs were included. Construct validity and responsiveness were the most studied. Eighty percent of the studies were of good to very good methodological quality according to MacDermid's Critical appraisal checklist for psychometric articles, whereas 67% of the studies comported risks of bias according to the COSMIN checklist. Of the 10 PROMs, three were specifically developed for DD but remain mostly under-studied for their psychometric properties (≤ 2 studies for the SDSS and DIF-CHUM). The QuickDASH, MHQ, BriefMHQ, and URAM present moderate to good convergent validity. Test-retest reliability was found to be good for the MHQ, briefMHQ, URAM, SDSS, SF-36, and the multi-attribute of the HUI-3. The MHQ and BriefMHQ are highly responsive.

CONCLUSION

There is a need for more psychometric studies on the PROMs used with individuals with DD. However, to date, the results included in this systematic review support that the MHQ and briefMHQ are the PROMs with the most acceptable psychometric properties.

Validity, responsiveness and minimal important change of the EQ-5D-5L in patients after rotator cuff repair, shoulder arthroplasty or thumb carpometacarpal arthroplasty

PURPOSE

The aim was to investigate the measurement properties of the EQ-5D-5L utility index in patients after arthroscopic rotator cuff repair (RCR), total shoulder arthroplasty (TSA) or thumb carpometacarpal (CMC I) arthroplasty.

METHODS

In this prospective study, all patients completed the EQ-5D-5L before surgery and 6 months and 1 year after surgery. In addition, RCR patients completed the Oxford Shoulder Score (OSS), TSA patients completed the Shoulder Pain and Disability Index (SPADI) and CMC I patients completed the brief Michigan Hand Outcomes Questionnaire (brief MHQ) at each designated time point. Construct validity (Pearson's correlation coefficient, r), responsiveness (effect size), minimal important difference (MID), minimal important change (MIC), and floor and ceiling effects of the EQ-5D-5L were determined. To test discriminative ability, EQ-5D-5L utility indices of patients who were in a patient acceptable symptom state (PASS) or not at follow-up were compared using the Mann-Whitney U test.

RESULTS

We included 153 RCR, 150 TSA, and 151 CMC I patients. The EQ-5D-5L utility index correlated with the OSS (r = 0.73), SPADI (r = - 0.65) and brief MHQ (r = 0.61). The effect sizes were 1.3 (RCR and CMC I group) and 1.1 (TSA). The MID and MIC ranged from 0.027 to 0.209. Ceiling effects were found. The EQ-5D-5L utility index differed significantly between patients being in a PASS versus patients who were not in a PASS.

CONCLUSION

The EQ-5D-5L utility index shows good construct validity, responsiveness and discriminative ability in patients after arthroscopic RCR, TSA and CMC I arthroplasty and is suitable to quantify quality of life.

CLINICAL TRIAL REGISTRATION

This auxiliary analysis is part of a primary study that was originally registered at ClinicalTrials.gov (NCT01954433) on October 1, 2013.