Responsiveness and Minimal Clinically Important Difference of the Turkish Version of the Oswestry Disability Index in Patients With Acute Discogenic Lumbar Radiculopathy
Perceptual and Motor Skills, cilt.133, sa.5, ss.1225-1242, 2026 (SSCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 133 Sayı: 5
- Basım Tarihi: 2026
- Doi Numarası: 10.1177/00315125251407383
- Dergi Adı: Perceptual and Motor Skills
- Derginin Tarandığı İndeksler: Social Sciences Citation Index (SSCI), Scopus, CINAHL, Education Abstracts, Educational research abstracts (ERA), MLA - Modern Language Association Database, Psycinfo, Social Sciences Abstracts
- Sayfa Sayıları: ss.1225-1242
- Anahtar Kelimeler: disability evaluation, low back pain, patient-reported outcome measures, psychometrics
- Ankara Yıldırım Beyazıt Üniversitesi Adresli: Evet
Özet
This study aimed to determine the responsiveness and establish the minimal clinically important difference of the Turkish version of the Oswestry Disability Index (ODI-TR) in patients with acute discogenic lumbar radiculopathy (ADLR). This study included 140 patients (mean age: 51.38 ± 12.23 years) with ADLR. Pre- and post-treatment, participants completed the ODI-TR and the Visual Analogue Scale (VAS), which assessed pain at rest (VASr), at night (VASn), and during activity (VASa). Post-treatment, the Global Perceived Effect Scale (GPE) was utilized to quantify patient-reported improvement or deterioration. Responsiveness was evaluated using both distribution- and anchor-based methods. The distribution-based approach involved calculating the standard error of measurement (SEM) using the formula SEM = SDx√(1-R), followed by the determination of the minimum detectable change at a 95% confidence level (MDC95), calculated as MDC = SEMx1.96x√2. The anchor-based method employed receiver-operating characteristic (ROC) curve analysis. The ODI-TR demonstrated good responsiveness, as indicated by an effect size of 1.29 and a standardized response mean of 1.03. The measurement error was quantified by an SEM of 7.08, and the MDC was calculated as 19.62. The ROC analysis showed a moderate ability to distinguish between patient outcomes, with an area under the curve of 0.71. An ODI-TR score of 9.50 was found to be the most effective cut-off, providing high sensitivity (86.1%) and specificity (76.0%). The ODI-TR is responsive in determining the changes in ADLR patients. The MDC and established cut-off point provide clinicians with valuable metrics for discerning clinically significant improvements or deteriorations.