A superior articular process morphology of 5th lumbar vertebra prone to screws placement failure: an anatomical study of 299 patients

Autor: Xiang-Ge Liu, Pei-Jie Liang, Han-Hui Liu, Guang-Fu Chen, Xiao-Dong Zhao
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Orthopaedic Surgery and Research, Vol 17, Iss 1, Pp 1-9 (2022)
Druh dokumentu: article
ISSN: 1749-799X
DOI: 10.1186/s13018-022-03403-y
Popis: Abstract Purposes This study aimed to investigate whether the morphology of the superior articular processes of L5 vertebra affected the accuracy of pedicle screw placement by reviewing 299 patients who had undergone L5 pedicle screw fixation over the past 12 months and measuring relevant parameters. Methods We retrospectively analyzed patients who underwent L5 vertebra fixation at our spine surgery department from October 20, 2020 to October 20, 2021. Patients with spondylolisthesis, spondylolysis, and scoliosis were excluded. Parameters associated with the superior articular process were analyzed, including Mammillary process-Spinal canal Distance (MCD), Inter-Facet Distance (IFD), Inter-Pedicle Distance (IPD), Zygapophysial Joints Angle (ZJA), Superior Articular Width, and Lateral Recess Transverse Diameter. The L5 vertebral body was reconstructed by Mimics 21.0, and the simulated L5 screws were inserted at multiple entry points to measure the Maximum Safe Transverse Angle (STAmax). Results A total of 299 patients who underwent L5 vertebra fixation with 556 pedicle screws were analyzed. An MCD
Databáze: Directory of Open Access Journals
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje