Improving the Trajectory of Transpedicular Transdiscal Lumbar Screw Fixation with a Computer-assisted 3D-printed Custom Drill Guide

Overview

Journal PeerJ

Specialties Biology
Environmental Health
General Medicine

Date 2017 Jul 19

PMID 28717599

Citations 4

Authors

Zhen-Xuan Shao

Jian-Shun Wang

Zhong-Ke Lin

Wen-Fei Ni

Xiang-Yang Wang

Ai-Min Wu

Affiliations

Soon will be listed here.

Abstract

Transpedicular transdiscal screw fixation is an alternative technique used in lumbar spine fixation; however, it requires an accurate screw trajectory. The aim of this study is to design a novel 3D-printed custom drill guide and investigate its accuracy to guide the trajectory of transpedicular transdiscal (TPTD) lumbar screw fixation. Dicom images of thirty lumbar functional segment units (FSU, two segments) of L1-L4 were acquired from the PACS system in our hospital (patients who underwent a CT scan for other abdomen diseases and had normal spine anatomy) and imported into reverse design software for three-dimensional reconstructions. Images were used to print the 3D lumbar models and were imported into CAD software to design an optimal TPTD screw trajectory and a matched custom drill guide. After both the 3D printed FSU models and 3D-printed custom drill guide were prepared, the TPTD screws will be guided with a 3D-printed custom drill guide and introduced into the 3D printed FSU models. No significant statistical difference in screw trajectory angles was observed between the digital model and the 3D-printed model ( > 0.05). Our present study found that, with the help of CAD software, it is feasible to design a TPTD screw custom drill guide that could guide the accurate TPTD screw trajectory on 3D-printed lumbar models.

Citing Articles

Clinical applications and prospects of 3D printing guide templates in orthopaedics.

Meng M, Wang J, Sun T, Zhang W, Zhang J, Shu L J Orthop Translat. 2022; 34:22-41.

PMID: 35615638 PMC: 9117878. DOI: 10.1016/j.jot.2022.03.001.

Individual Navigation Templates for Subcortical Screw Placement in Lumbar Spine.

Kovalenko R, Kashin V, Cherebillo V Sovrem Tekhnologii Med. 2022; 13(5):41-46.

PMID: 35265348 PMC: 8858410. DOI: 10.17691/stm2021.13.5.05.

Design of a 3D navigation template to guide the screw trajectory in spine: a step-by-step approach using Mimics and 3-Matic software.

Feng Z, Li X, Phan K, Hu Z, Zhang K, Zhao J J Spine Surg. 2018; 4(3):645-653.

PMID: 30547131 PMC: 6261751. DOI: 10.21037/jss.2018.08.02.

Systematic review of 3D printing in spinal surgery: the current state of play.

Wilcox B, Mobbs R, Wu A, Phan K J Spine Surg. 2017; 3(3):433-443.

PMID: 29057355 PMC: 5637198. DOI: 10.21037/jss.2017.09.01.

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