Retrospective Study
Copyright ©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jul 16, 2024; 12(20): 4108-4120
Published online Jul 16, 2024. doi: 10.12998/wjcc.v12.i20.4108
Biomechanical effects of posterior lumbar interbody fusion with vertical placement of pedicle screws compared to traditional placement
Ji-Hong Jiang, Chang-Ming Zhao, Jun Zhang, Rong-Ming Xu, Lei Chen
Ji-Hong Jiang, Chang-Ming Zhao, Jun Zhang, Rong-Ming Xu, Lei Chen, Department of Orthopedic Surgery, Zhejiang University Mingzhou Hospital, Ningbo 315000, Zhejiang Province, China
Author contributions: Jiang JH, Zhao MC, and Chen L designed the research; Jiang JH, Jun Z, and Xu RM performed the research; Jiang JH and Chen L analyzed the data and wrote the manuscript.
Institutional review board statement: This study was approved by the institutional review board of Mingzhou Hospital of Ningbo (No. 202208501).
Informed consent statement: Informed consent was obtained from all individual participants included in the study.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Data sharing statement: The data are available from the corresponding author at 13736092786@139.com.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: Https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Lei Chen, BSc, Doctor, Department of Orthopedic Surgery, Zhejiang University Mingzhou Hospital, No. 168 Tai’an Road, Ningbo 315000, Zhejiang Province, China. 13736092786@139.com
Received: March 12, 2024
Revised: April 24, 2024
Accepted: May 31, 2024
Published online: July 16, 2024
Processing time: 111 Days and 0.9 Hours
Core Tip

Core Tip: This study aimed to explore the feasibility of employing zero-degree transverse section angles (TSA) vertical pedicle screw technique in the lumbosacral segment to reduce surgical trauma and ischemic injury to the lumbar muscles during pedicle screw insertion. The safety and stability of the zero-degree TSA vertical pedicle screw technique in the lumbosacral segment were slightly lower than those of the 17-degree TSA screw placement technique. However, the risks of screw-rod system fractures, vertebral body fractures, and ruptures were within acceptable limits. The screws exhibited high resistance to pull-out. The use of this zero-degree TSA vertical pedicle screw technique offers good safety and reliability. It can reduce surgical dissection of the multifidus muscles and minimize surgical trauma to the lumbar muscles.