ArticleBMC surgery2022
Comparison of CT values in traditional trajectory, traditional cortical bone trajectory, and modified cortical bone trajectory.
Article in BMC surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 8 citations in OpenAlex.
- Development and Validation of a Computer-Assisted Screw Trajectory Planning Model Based on Iterative Closest Point Registration and Weighted K-Nearest Neighbors Algorithms for Cortical Bone and Pedicle Screw Techniques.Global spine journal · 2026Article
- Morphological characteristics of lumbar vertebral bodies and regional distribution patterns of bone mineral density: a CT study.Frontiers in physiology · 2026Article
- Study on anatomical parameters of modified cortical bone trajectories in the lower lumbar vertebrae.BMC musculoskeletal disorders · 2025Article
- Comparative analysis of 3D CT values for different lumbar pedicle screw trajectories.Journal of orthopaedic surgery and research · 2025Article
- Bone density comparison between the normal pedicle trajectory, cortical bone trajectory, and modified cortical bone trajectory using computed tomography: a cross-sectional study.Asian spine journal · 2025Article
- Comparative study of individualized 3D-printing navigation technology and free-hand isthmus method in lumbar CBT screw implantation.Frontiers in surgery · 2025Article
- The Impact of Different Regional Anesthesia Techniques on the Incidence of Chronic Post-surgical Pain in Patients Undergoing Video-Assisted Thoracoscopic Surgery: A Network Meta-analysis.Pain and therapy · 2024Review
- The influence of osteoporosis on mechanical complications in lumbar fusion surgery: a systematic review.North American Spine Society journal · 2024Review
- Article
Corrections and comments
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundTo compare the CT values and length of the screw tracks of traditional trajectory (TT), cortical bone trajectory (CBT), and modified cortical bone trajectory (MCBT) screws and investigate the effects on the biomechanics of lumbar fixation.
methodsCT scan data of 60 L4 and L5 lumbar spine were retrieved and divided into 4 groups (10 male and 10 female cases in the 20-30 years old group and 20 male and 20 female cases in the 30-40 years old group). 3-dimentional (3D) model were established using Mimics 19.0 for each group and the placement of three techniques was simulated on the L4 and L5, and the part of the bone occupied by the screw track was set as the region of interest (ROI). The mean CT value and the actual length of the screw track were measured by Mimics 19.0.
resultsThe CT values of ROI for the three techniques were significantly different between the same gander in each age group (P < 0.05). The difference of screw track lengths for CBT and MCBT in the male and female is significant (P < 0.05).
conclusionsAccording to the CT values of the three screw tracks: MCBT > CBT > TT, the MCBT screw track has greater bone-screw surface strength and longer screw tracks than CBT, which is easier to reach the anterior column of the vertebral body contributing to superior biomechanical properties.
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