A validation of the Swedish version of the WORC index in the assessment of patients treated by surgery for subacromial disease including rotator cuff syndromeReportar como inadecuado




A validation of the Swedish version of the WORC index in the assessment of patients treated by surgery for subacromial disease including rotator cuff syndrome - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

BMC Musculoskeletal Disorders

, 17:165

Orthopedics and biomechanics

Abstract

BackgroundThe Western Ontario Rotator Cuff Index WORC is a widely used instrument to measure quality of life in patients with subacromial pain or rotator cuff syndrome.

The purpose of this study was to evaluate the psychometric properties of the Swedish version of the WORC for assessment of subacromial disease including rotator cuff syndrome treated by surgery.

MethodsA total of 65 patients were included in this study, mean age 60 years range 36–82, 42 % women, all were candidates for surgery for subacromial pain conditions at two orthopedic units during 2004–2006 and 2011–2012. Calculations of the validity of Pearson’s correlation coefficient, floor and ceiling effects, reliability and responsiveness have formed the basis of assessment of the WORC index properties. WORC has been tested against Western Ontario Osteoarthritis of the Shoulder WOOS, Oxford Shoulder Score and EQ-5D.

An additional 49 patients, mean age 64 years range 36–74 20 % of whom were women, were analyzed in a WORC test-retest with ICC and also correlated to Constant-Murley Score.

ResultsThe validity analysis of WORC showed high correlations with both the specific and the generic health measurement instrument. The reliability calculations of the WORC resulted in ICC = 0.97 and Cronbach’s alpha = 0.97. Responsiveness was also excellent for WORC with Effect size = 1.35 and Standardized Response mean = 1.01. We found that the WORC showed a strong correlation with the WOOS 0.97 and the Constant-Murley Score 0.85. A good correlation was found with the Oxford Shoulder Score 0.74 and the EQ-5D 0.71.

ConclusionsThe Swedish version of WORC can be considered reliable, valid and responsive for use as an assessment of outcome and a health measurement instrument for patients treated by surgery for subacromial disease including rotator cuff syndrome.

KeywordsRotator Cuff Shoulder WORC Quality of Life Validity Reliability Responsiveness Questionnaire AbbreviationsCSConstant-Murley Score.

ESEffect Size

ICCIntraclass Correlation Coefficient

EQ-5DEuropean Quality of Life- 5 Dimensions 3 L

MCICMinimal Clinically Important Change

MICMinimal Important Change

MIDMinimally Important Difference

OSSOxford Shoulder Score

PCCPearson’s Correlation Coefficient

QoLQuality of Life

RCRotator Cuff

SCCSpearman Correlation Coefficient

SEMStandard Error of Measurement

SF-36Short Form- 36 item

SLSatisfaction Level

SRQShoulder Rating Questionnaire

SRMStandardized Response Mean

WORCWestern Ontario Rotator Cuff Index

WOOSWestern Ontario Osteoarthritis of the Shoulder Index

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Autor: Soheila Zhaeentan - Markus Legeby - Susanne Ahlström - André Stark - Björn Salomonsson

Fuente: https://link.springer.com/







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