A comparison between WHODAS 2.0 and Modified Barthel Index: which tool is more suitable for assessing the disability and the recovery rate in orthopedic rehabilitation?

Tiziana Galli,1 Paolo Mirata,2 Emanuela Foglia,3 Davide Croce,3,4 Emanuele Porazzi,3 Lucrezia Ferrario,3 Elena Ricci,5 Elisabetta Garagiola,3 Roberta Pagani,3 Giuseppe Banfi6,7 1Department of Functional Recovery and Re-education, Hospital of Saronno, Hospital Authority “ASST Valle Olona”, Saronno, Italy; 2Department of Functional Recovery and Re-education, Hospital of Busto Arsizio, Hospital Authority “ASST Valle Olona”, Busto Arsizio, Italy; 3Centre for Research on Health Economics Social and Health Care Management (CREMS), LIUC - Università Cattaneo, Castellanza, Italy; 4School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; 5Department of Infectious Diseases, Fatebenefratelli Sacco Hospital, Milan, Italy; 6Orthopaedics Institute, IRCCS Galeazzi, Milan, Italy; 7San Raffaele Scientific Institute, Milan, Italy Purpose: The aim of the present study was to compare 2 clinical assessment tools, the Modified Barthel Index (currently administered to patients admitted into inpatient rehabilitation units after elective hip or knee arthroplasty) with the World Health Organization Disability Assessment Schedule (WHODAS) 2.0 scale, in order to identify which tool is more suitable for assessing the disability and the “recovery rate”.Patients and methods: A perspective multicenter observational study was developed, involving 2 hospital authorities in Italy. Eighty consecutive cases of inpatients were enrolled. Patient’s disability was evaluated using both of the aforementioned tools, before and after the rehabilitation program.Results: The WHODAS 2.0 score was, on average, 12.21% higher than the Modified Barthel Index, before the surgical intervention. Modified Barthel Index measures could be considered as a determinant and a predictor of length of stay.Conclusion: The Modified Barthel Index is limited, since it does not consider a patient’s perspective. The WHODAS 2.0 scale fully considers a patient’s perception of disability. Therefore, both assessment scales should be administered in clinical practice, in order to provide integration of clinical information with a patient’s reported outcome measures. Keywords: disability, Modified Barthel Index, WHODAS 2.0, orthopedics, rehabilitation