ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2017
Radiographic measurement for transforaminal percutaneous endoscopic approach (PELD).
Article 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, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 41 citations in OpenAlex.
- Correlation Between Postoperative Changes in Imaging Parameters and Clinical Outcomes After Unilateral Biportal Endoscopic Decompression for Single-Level Lumbar Spinal Stenosis.Journal of pain research · 2026Article
- Quantifying the Trajectory of Percutaneous Endoscopic Lumbar Discectomy in 3D Lumbar Models Based on Automated MR Image Segmentation-A Cross-Sectional Study.Orthopaedic surgery · 2025Article
- Percutaneous Endoscopic Backhand Holding (EBH) Technique for Extraforaminal Lumbar Disc Herniations: A Modified Operative Technique.Journal of pain research · 2025Article
- Anatomical assessment of the Kambin's triangle for percutaneous posterolateral transforaminal endoscopic surgery of lumbar intervertebral discs: a magnetic resonance imaging based study.Anatomy & cell biology · 2024Article
- How to Set Working Cannula in Endoscopic-Assisted Transforaminal Lumbar Interbody Fusion: A Morphometric Analysis Based on Computed Tomography.Orthopaedic surgery · 2024Article
- A Modified Laminotomy for Interlaminar Endoscopic Lumbar Discectomy: Technical Report and Preliminary Results.Neurospine · 2023Article
- Radiographic characteristics-based classification system for percutaneous endoscopic lumbar discectomy surgical approach selection in patients with L5-S1 disc herniation: a hierarchical clustering analysis.Quantitative imaging in medicine and surgery · 2023Article
- One-hole split endoscopy technique versus unilateral biportal endoscopy technique for L5-S1 lumbar disk herniation: analysis of clinical and radiologic outcomes.Journal of orthopaedic surgery and research · 2023Article
- Correlation Between Postoperative Imaging Parameters and Clinical Outcomes of Percutaneous Endoscopic Transforaminal Decompression for Lumbar Spinal Foraminal and Lateral Recess Stenosis.Journal of pain research · 2023Article
- Automated Magnetic Resonance Image Segmentation of Spinal Structures at the L4-5 Level with Deep Learning: 3D Reconstruction of Lumbar Intervertebral Foramen.Orthopaedic surgery · 2022Article
- Percutaneous transforaminal endoscopic discectomy for different types of lumbar disc herniation: A retrospective study.The Journal of international medical research · 2021Article
- Morphological analysis of Kambin's triangle using 3D CT/MRI fusion imaging of lumbar nerve root created automatically with artificial intelligence.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 · 2021Article
- Risk Factor for Additional Intravenous Medication during Transforaminal Full-endoscopic Lumbar Discectomy under Local Anesthesia.Neurologia medico-chirurgica · 2021Article
- Intraoperative image guidance for endoscopic spine surgery.Annals of translational medicine · 2021Review
- What Is the Ideal Entry Point for Transforaminal Endoscopic Lumbar Discectomy?Journal of Korean Neurosurgical Society · 2020Article
- Evaluation of Dimensions of Kambin's Triangle to Calculate Maximum Permissible Cannula Diameter for Percutaneous Endoscopic Lumbar Discectomy : A 3-Dimensional Magnetic Resonance Imaging Based Study.Journal of Korean Neurosurgical Society · 2019Article
- CT-based Morphometric Analysis of Approach of Percutaneous Transforaminal Endoscopic Lumbar Interbody Fusion.Orthopaedic surgery · 2019Article
- Evaluation of changes in lumbar neuroforaminal dimensions in symptomatic young adults using positional MRI.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 · 2017Article
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveA radiographic study to analyze the working zone and relationship of the nerve root to their corresponding intervertebral disc for transforaminal percutaneous approaches.
methods100 MRIs of transverse and sagittal views of 37 males, 63 females (average age 45 years), 50 MRIs of coronal views of 22 males, 28 females (average age 42 years), and 100 X-rays, 46 males, 54 females (average age of 44 years) were used for image analysis. All radiologic measurements were obtained independently by two experienced radiologists. On sagittal plane, foraminal height, foraminal diameter, nerve root-disc distance and nerve root-pedicle distance were measured. On transverse plane, foraminal width, nerve root-disc distance, nerve root-facet distance and target angle (J°) were analyzed at the superior (s) and inferior (i) margin of the disc. On coronal plane, nerve root-disc distance and nerve root-pedicle distance were measured at the medial, middle and lateral borders of the pedicle.
resultsSagittal plane; foraminal height and diameter decreased caudally. Transverse plane; foraminal width was larger at the superior margin of the disc. Nerve root-disc distance decreased caudally. The nerve root lied dorsal to the disc at L2-L3 and L3-L4, whereas at L4-L5 and L5-S1 it lied ventrally. Nerve root-facet distance was shortest at the superior margin. Target angles (Js°, Ji°) at L2-L3 and L3-L4 were wider at their superior margin than at their inferior margin. Coronal plane; nerve root-disc distance increased from L2-L3 to L5-S1 whereas nerve root-pedicle distances decreased, thus coursing more vertically.
conclusionsAt lower lumbar levels the exiting nerve root is at risks of injury. Hence, it is advised to enlarge the foramen for safe passage of endoscopic instruments and to minimize the possibility of nerve injury.
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