Trial reportEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2026
Do postoperative changes in physical function affect patient-reported outcomes in patients with lumbar spinal stenosis undergoing rehabilitation? A secondary analysis of a randomized controlled trial.
Trial report in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Review
- Letter to the Editor concerning "Impact of nonunion on patient-related outcomes after single level minimally invasive transforaminal lumbar interbody fusion for lumbar degenerative disease: A propensity score-matched analysis" by Yamamoto T, et al. (Eur spine J [2025]: doi:10.1007/s00586-025-09296-9).European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo investigate the relationships between changes in objective physical function and changes in patient-reported outcome measurements (PROMs) in patients with lumbar spinal stenosis (LSS) undergoing lumbar surgery.
methodsThis study was a secondary analysis of a randomized controlled trial, in which patients with LSS undergoing lumbar surgery received an inpatient postoperative rehabilitation program. Objective physical assessments included gait speed, a Timed Up and Go test (TUG), handgrip and knee muscle strength, and bioelectrical impedance analysis for skeletal muscle at 3 months. PROMs included the Zurich Claudication Questionnaire (ZCQ), a numerical rating scale for back pain, leg pain, and leg numbness, the Japanese Orthopedic Association Back Pain Evaluation Questionnaire, and the 36-item Short-Form survey (SF-36) at 3 and 12 months.
resultsA total of 80 patients (40 males and 40 females, average age 70.4 years) were included. At 3 and 12 months, changes in gait speed, TUG, and knee extensor strength showed some small but significant correlations with changes in the ZCQ and SF-36 physical functioning subscales (r = 0.23-0.42). Multivariable linear regression analyses revealed some significant associations between changes in objective physical assessments (gait speed, TUG, hand grip, and knee muscle strength) and PROMs (ZCQ, NRS, and SF-36 physical functioning subscale). However, these associations were limited in strength (standardized β = |0.24-0.34|, adjusted R² = 0.03-0.13).
conclusionThe findings of this study showed limited associations between changes in objective physical assessments and changes in PROMs in patients with LSS who underwent lumbar surgery and postoperative rehabilitation.
trial registrationUMIN000030881.
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Identifiers
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Registered trials
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