ArticleEuropean radiology2021
Positional changes in lumbar disc herniation during standing or lumbar extension: a cross-sectional weight-bearing MRI study.
Article in European radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 21 citations in OpenAlex.
- Acupuncture alleviates the progression of lumbar disc herniation by regulating the autophagy level of nucleus pulposus cells through the SIRT1/Sestrin2 pathway.Histology and histopathology · 2026Article
- Clinical advantages of percutaneous endoscopic lumbar discectomy combined with lumbar hyperextension pressurization in the treatment of L4/5 single-segment lumbar disc herniation.Journal of orthopaedic surgery and research · 2025Article
- Sleep Physiology in Spine Disease: A Comparative Study of Cervical and Lumbar Patients.Clinical spine surgery · 2025Article
- Managing radicular pain in patients with normal MRIs: Challenges and insights?Interventional pain medicine · 2025Article
- Neurological examination for cervical radiculopathy: a scoping review.BMC musculoskeletal disorders · 2025Article
- Impact of joint hypermobility on lumbar positional changes in back pain patients: a cross-sectional weight-bearing MRI study.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
- A Primer on Anatomy, Biophysics, Pathology, Imaging and Treatment of the Intervertebral Disc and the Anterior Spinal Column: The Discogenic, Intervertebral, Spinal Column (DISC) ASPN Workgroup.Journal of pain research · 2025Article
- An Investigation Into the Relationship Between the Sedimentation Sign and Lumbar Disc Herniation in Upright Magnetic Resonance Images.Global spine journal · 2024Article
- Lumbar disc herniation: Epidemiology, clinical and radiologic diagnosis WFNS spine committee recommendations.World neurosurgery: X · 2024Review
- New clinical opportunities of low-field MRI: heart, lung, body, and musculoskeletal.Magma (New York, N.Y.) · 2024Review
- Degenerative Disc Disease of the Spine: From Anatomy to Pathophysiology and Radiological Appearance, with Morphological and Functional Considerations.Journal of personalized medicine · 2022Review
- Prognosis Evaluation of MRI Combined with Magnetic Resonance Myelography on Lumbar Disc Herniation after Transforaminal Endoscopic Discectomy.Computational and mathematical methods in medicine · 2022Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo investigate biomechanical changes in lumbar disc herniations.
methodsPatients with lumbar disc herniation verified on a 1.5-3-T magnetic resonance imaging (MRI) scanner were imaged in a weight-bearing 0.25-T MRI scanner in (1) standing position, (2) conventional supine position with relative lumbar flexion, and (3) supine position with a forced lumbar extension by adding a lumbar pillow. The L2-S1 lordosis angle, the disc cross-sectional area, the disc cross-sectional diameter, and the spinal canal cross-sectional diameter were measured for each position. Disc degeneration and nerve root compression were graded, and the pain intensity was reported during each scan position.
resultsForty-three herniated discs in 37 patients (36.7 ± 11.9 years) were analyzed in each position. The L2-S1 lumbar angle increased in the standing position (mean difference [MD]: 5.61°, 95% confidence interval [95% CI]: 3.44 to 7.78) and with the lumbar pillow in the supine position (MD: 14.63°, 95% CI: 11.71 to 17.57), both compared with the conventional supine position. The herniated disc cross-sectional area and diameter increased during standing compared with during conventional supine position. No changes were found in the spinal canal cross-sectional diameter between positions. Higher nerve root compression grades for paracentral herniations were found during standing compared with during conventional supine position. This was neither found with a lumbar pillow nor for central herniations in any position compared with conventional supine.
conclusionDisc herniations displayed dynamic behavior with morphological changes in the standing position, leading to higher nerve root compression grades for paracentral herniated discs. KEY POINTS: • Lumbar herniated discs increased in size in the axial plane during standing. • Increased nerve root compression grades for paracentral herniated discs were found during standing. • Weight-bearing MRI may increase the diagnostic sensitivity of nerve root compression in lumbar disc herniations.
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