Responsiveness and minimum important change of the Oswestry Disability Index in Italian subjects with symptomatic lumbar spondylolisthesis

Journal of Orthopaedics and Traumatology - Tập 18 - Trang 145-150 - 2017
Carla Vanti1,2, Silvano Ferrari1, Jorge Hugo Villafañe3, Pedro Berjano4, Marco Monticone5
1Department of Molecular Medicine, University of Padova, Padua, Italy
2Bologna, Italy
3IRCCS Don Gnocchi Foundation, Milan, Italy
4IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
5Department of Public Health, Clinic and Molecular Medicine, University of Cagliari, Cagliari, Italy

Tóm tắt

This study aims to investigate the responsiveness and the minimum important change of the Italian version of the Oswestry Disability Index (ODI-I) in subjects with symptomatic specific low back pain associated with lumbar spondylolisthesis (SPL). One hundred and fifty-one patients with symptomatic SPL completed the ODI-I, a 0–100 numerical rating scale (NRS), and performed the prone and supine bridge tests. The global perception of effectiveness was measured with a 7-point Likert scale. Responsiveness was assessed by distribution methods (minimum detectable change [MDC], effect size [ES], standardized response mean [SRM]) and anchor-based methods (ROC curves). The MDC was 4.23, the ES was 0.95 and the SRM was 1.25. ROC analysis revealed an area under the curve of 0.76 indicating moderate discriminating capacity. The best cut-off point for the dichotomous outcome was 7.5 (sensitivity 90.3%, specificity 56.7%). . The ODI-I proved to be responsive in detecting changes after conservative treatment in subjects with lumbar SPL. II.

Tài liệu tham khảo

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