ArticleHealth science reports2026
Measurement Properties of the Japanese Oswestry Disability Index in Preoperative Patients With Lumbar Spinal Stenosis: Effect of Pain and Numbness: A Cross-Sectional Study.
Article in Health science reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background and Aims: The measurement properties of the Japanese Oswestry Disability Index (ODI) and the effects of site-specific pain and numbness on disability in preoperative patients with lumbar spinal stenosis (LSS) remain insufficiently explored. This study aimed to evaluate the factor structure and reliability of the ODI and examine the influence of pain and numbness on disability. Methods: A total of 147 preoperative patients with LSS aged 60 and above, scheduled for lumbar spine surgery, were included. Demographic and clinical data, including pain and numbness levels using the numerical rating scale (NRS), were collected. We excluded the sexual life item from the ODI, and the analysis was conducted using the remaining nine items. This exclusion was considered in the interpretation of the measurement properties. Exploratory factor analysis (EFA), Cronbach's Results: The sample (mean age 73.3 years) included 72.1% males. The mean ODI score was 46.8% ("severe disability"). EFA identified two latent factors: Daily living (e.g., personal care, sitting, sleeping) and Social living (e.g., traveling, social activities), with a moderate inter-factor correlation ( Conclusions: The Japanese ODI is a reliable tool for assessing disability in preoperative patients with LSS, with distinct factors for daily and social functioning. Pain management for the low back, leg, and foot may play an important role in optimizing patient care.
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