ArticleInternational journal of spine surgery2021
Lumbar Pedicle Morphology and Vertebral Dimensions in Isthmic and Degenerative Spondylolisthesis-A Comparative Study.
Article in International journal of spine surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 6 papers.
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6 citing papers in PubMed, 9 citations in OpenAlex.
- Adverse events associated with basivertebral nerve radiofrequency ablation: A comprehensive analysis from the MAUDE database.Interventional pain medicine · 2026Article
- The Anterolateral Transpedicular Transverse Process Screw Technique: Surgical Techniques, Biomechanical study and Preliminary Outcomes.Orthopaedic surgery · 2026Article
- FACTFINDERS for PATIENT SAFETY: Minimizing complications in radiofrequency neurotomy: Part I-Implantable devices; Part II-Preprocedural BVNRFN imaging.Interventional pain medicine · 2025Article
- Lumbar Pedicle Morphometry in the Mexican Population: Defining Anatomical References for Safer Spine Surgery.Cureus · 2025Article
- A morphological characterization of the lumbar neural arch in females and males with degenerative spondylolisthesis.BMC musculoskeletal disorders · 2021Article
- A radiological parametric comparison of low-grade lytic spondylolisthesis to degenerative spondylolisthesis - A retrospective approach to establish its dysplastic origin.Journal of craniovertebral junction & spineArticle
Corrections and comments
- Erratum issuedCorrections.2023
Authors and funding
18 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe pedicle screw is the most common device used to achieve fixation in fusion of spondylolistheses. Safe and accurate placement with this technique relies on a thorough understanding of the bony anatomy. There is a paucity of literature comparing the surgically relevant osseous anatomy in patients with a degenerative spondylolisthesis (DS) and an isthmic spondylolisthesis (IS). The goal of this study was to determine the differences in the osseous anatomy in patients with a DS and those with an IS.
methodsA retrospective comparative cohort study was conducted on patients with a single-level, symptomatic L4-L5 DS or a single-level, symptomatic L5-S1 IS. Magnetic resonance imaging for these patients was reviewed. Morphometries of the pedicle and vertebral body were analyzed by 2 independent observers for the levels from L3 to S1, and radiographic parameters were compared between groups.
resultsA total of 572 levels in 143 patients were studied, including 103 patients with a DS and 40 with an IS. After accounting for confounders, IS and DS had an independent effect on transverse vertebral body width, pedicle height and width, and sagittal pedicle angle. Patients with an IS had a smaller pedicle height (
conclusionsThe osseous anatomy is significantly different in patients with a DS than with an IS. Patients with an IS have smaller pedicles in the lumbar spine. Also, the L4 and L5 pedicles are more caudally angulated and the S1 pedicle is less medialized. LEVEL OF EVIDENCE: 3. CLINICAL RELEVANCE: Understanding the differences in pedicle anatomy is important for the safe placement of pedicle screws.
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