Morphometric measurement of the lumbosacral spine for minimally invasive cortical bone trajectory implant using computed tomography

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
Hua ZhangWeishan Chen

Abstract

The cortical bone trajectory (CBT) is a novel lumbar pedicle screw trajectory. The aim of this study was to conduct a detailed morphometric measurement of the lumbosacral spine for CBT pedicle screw, using the inferior facet of the cephalad level as a bony landmark. The three-dimensional computed tomography (3D-CT) scans of 86 adults who underwent examination of the lumbosacral spine were studied. The distances from the starting point to the inferior, lateral and medial border of the inferior facet of the cephalad level were measured. The angles formed between the screw trajectory and the sagittal plane, the superior endplate of the vertebral body and the posterior margin of the pars interarticularis were defined as the transverse angle (TA), cephalad angle 1 (CA1) and cephalad angle 2 (CA2), respectively. The distances from the inferior border of inferior facet to the starting point from L1 to S1 were 8.9, 6.3, 4.1, 2.9, 1.4 and 0 mm, respectively. The distances from the medial border of the inferior facet to the starting point from L1 to S1 were between 3 and 4 mm. TA from L1 to S1 was 9.0°, 9.6°, 11.3°, 13.5°, 15.5°, and 8.2°, respectively. CA1/CA2 from L1 to S1 was 26.7°/38.7°, 26.0°/38.7°, 26.9°/38.0°, 24.4°/37.2°, 22.9°/3...Continue Reading

References

May 20, 1998·Spine·A M PeretzM H Heggeness
Sep 16, 2008·The Spine Journal : Official Journal of the North American Spine Society·B G SantoniC M Puttlitz
Mar 11, 2011·Journal of Neurosurgery. Spine·Serkan InceoğluRobert F McLain
Feb 23, 2013·Journal of Spinal Disorders & Techniques·Keitaro MatsukawaKoichi Nemoto
Apr 29, 2014·Journal of Neurosurgery. Spine·Keitaro MatsukawaKoichi Nemoto
Jan 17, 2015·Journal of Neurosurgery. Spine·Masaki UenoMasashi Takaso
Mar 23, 2017·Clinical Spine Surgery : a Spine Publication·Matthew ColmanDarrel S Brodke
Jul 27, 2017·Clinical Spine Surgery : a Spine Publication·Keitaro MatsukawaKoichi Nemoto

❮ Previous
Next ❯

Citations

Aug 25, 2016·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·Jun XuanXiang-Yang Wang
Nov 3, 2017·Asian Spine Journal·Juan Delgado-FernandezRafael G Sola
May 22, 2018·Clinical Spine Surgery : a Spine Publication·Hai GaoCailiang Shen
Apr 20, 2019·Journal of Neurosurgery. Spine·Zachary TanJoel Finkelstein
Nov 27, 2017·Spine Surgery and Related Research·Keitaro Matsukawa, Yoshiyuki Yato
Jul 29, 2021·JBJS Reviews·Alexander A RosinskiDimitriy Kondrashov

❮ Previous
Next ❯

Related Concepts

Related Feeds

Barrel cortex

Here is the latest research on barrel cortex, a region of somatosensory and motor corticies in the brain, which are used by animals that rely on whiskers for world exploration.