Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical Study

Objective Minimally invasive atlantoaxial surgery offers the benefits of reduced trauma and quicker recovery. Previous studies have focused on feasibility and technical aspects, but the lack of comprehensive safety information has limited its availability and widespread use. This study proposes to d...

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Main Authors: Peirong Lian, Hu Chen, Wanshun Wang, Changrong Zhu, Qiang Tu, Xiangyang Ma, Hong Xia, Honglei Yi
Format: Article
Language:English
Published: Wiley 2024-04-01
Series:Orthopaedic Surgery
Subjects:
Online Access:https://doi.org/10.1111/os.14023
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author Peirong Lian
Hu Chen
Wanshun Wang
Changrong Zhu
Qiang Tu
Xiangyang Ma
Hong Xia
Honglei Yi
author_facet Peirong Lian
Hu Chen
Wanshun Wang
Changrong Zhu
Qiang Tu
Xiangyang Ma
Hong Xia
Honglei Yi
author_sort Peirong Lian
collection DOAJ
description Objective Minimally invasive atlantoaxial surgery offers the benefits of reduced trauma and quicker recovery. Previous studies have focused on feasibility and technical aspects, but the lack of comprehensive safety information has limited its availability and widespread use. This study proposes to define the feasibility and range of surgical safety using the intersection of the greater occipital nerve and the inferior border of the inferior cephalic oblique as a reference point. Methods Dissection was performed on 10 fresh cadavers to define the anatomical reference point as the intersection of the greater occipital nerve and the inferior border of the inferior cephalic oblique muscle. The study aimed to analyze the safety range of minimally invasive atlantoaxial fusion surgery by measuring the distance between the anatomical reference point and the transverse foramen of the axis, the distance between the anatomical reference point and the superior border of the posterior arch of the atlas, and the distance between the anatomical reference point and the spinal canal. Measurements were compared using Student's t test. Results The point where the occipital greater nerve intersects with the inferior border of the inferior cephalic oblique muscle was defined as the anatomical marker for minimally invasive posterior atlantoaxial surgery. The distance between this anatomical marker and the transverse foramen of the axis was measured to be 9.32 ± 2.04 mm. Additionally, the distance to the superior border of the posterior arch of the atlas was found to be 21.29 ± 1.93 mm, and the distance to the spinal canal was measured to be 11.53 ± 2.18 mm. These measurement results can aid surgeons in protecting the vertebral artery and dura mater during minimally invasive posterior atlantoaxial surgery. Conclusions The intersection of the greater occipital nerve with the inferior border of the inferior cephalic oblique muscle is a safe and reliable anatomical landmark in minimally invasive posterior atlantoaxial surgery.
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spelling doaj.art-32b27d97d0564069b093f7eaba6c22c82024-04-02T01:03:25ZengWileyOrthopaedic Surgery1757-78531757-78612024-04-0116494395210.1111/os.14023Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical StudyPeirong Lian0Hu Chen1Wanshun Wang2Changrong Zhu3Qiang Tu4Xiangyang Ma5Hong Xia6Honglei Yi7The First School of Clinical Medicine Southern Medical University Guangzhou ChinaThe First School of Clinical Medicine Southern Medical University Guangzhou ChinaThe Second Clinical Medical College Guangzhou University of Chinese Medicine Guangzhou ChinaThe First School of Clinical Medicine Southern Medical University Guangzhou ChinaThe First School of Clinical Medicine Southern Medical University Guangzhou ChinaThe First School of Clinical Medicine Southern Medical University Guangzhou ChinaThe First School of Clinical Medicine Southern Medical University Guangzhou ChinaThe First School of Clinical Medicine Southern Medical University Guangzhou ChinaObjective Minimally invasive atlantoaxial surgery offers the benefits of reduced trauma and quicker recovery. Previous studies have focused on feasibility and technical aspects, but the lack of comprehensive safety information has limited its availability and widespread use. This study proposes to define the feasibility and range of surgical safety using the intersection of the greater occipital nerve and the inferior border of the inferior cephalic oblique as a reference point. Methods Dissection was performed on 10 fresh cadavers to define the anatomical reference point as the intersection of the greater occipital nerve and the inferior border of the inferior cephalic oblique muscle. The study aimed to analyze the safety range of minimally invasive atlantoaxial fusion surgery by measuring the distance between the anatomical reference point and the transverse foramen of the axis, the distance between the anatomical reference point and the superior border of the posterior arch of the atlas, and the distance between the anatomical reference point and the spinal canal. Measurements were compared using Student's t test. Results The point where the occipital greater nerve intersects with the inferior border of the inferior cephalic oblique muscle was defined as the anatomical marker for minimally invasive posterior atlantoaxial surgery. The distance between this anatomical marker and the transverse foramen of the axis was measured to be 9.32 ± 2.04 mm. Additionally, the distance to the superior border of the posterior arch of the atlas was found to be 21.29 ± 1.93 mm, and the distance to the spinal canal was measured to be 11.53 ± 2.18 mm. These measurement results can aid surgeons in protecting the vertebral artery and dura mater during minimally invasive posterior atlantoaxial surgery. Conclusions The intersection of the greater occipital nerve with the inferior border of the inferior cephalic oblique muscle is a safe and reliable anatomical landmark in minimally invasive posterior atlantoaxial surgery.https://doi.org/10.1111/os.14023Atlantoaxial SurgeryMinimally InvasivePosteriorReference Points
spellingShingle Peirong Lian
Hu Chen
Wanshun Wang
Changrong Zhu
Qiang Tu
Xiangyang Ma
Hong Xia
Honglei Yi
Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical Study
Orthopaedic Surgery
Atlantoaxial Surgery
Minimally Invasive
Posterior
Reference Points
title Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical Study
title_full Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical Study
title_fullStr Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical Study
title_full_unstemmed Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical Study
title_short Evaluation of the Anatomical Reference Point in Posterior Minimally Invasive Atlantoaxial Spine Surgery: A Cadaveric Anatomical Study
title_sort evaluation of the anatomical reference point in posterior minimally invasive atlantoaxial spine surgery a cadaveric anatomical study
topic Atlantoaxial Surgery
Minimally Invasive
Posterior
Reference Points
url https://doi.org/10.1111/os.14023
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