AI Article Synopsis
- The study aimed to assess the feasibility of a new method for implanting a specific type of intervertebral cage at the atlantoaxial joint via a transoral approach.
- Researchers conducted measurements on dry bone specimens to determine anatomical parameters necessary for designing and safely implanting the cage, successfully testing this method on 10 specimens.
- Results indicated that there is sufficient anatomical space for the cage's safe implantation, confirming that this surgical approach could be effective in practice.
Article Abstract
Background: The purpose of this study was to evaluate the possibility of implanting the anterior atlantoaxial lateral mass intervertebral cage, a new type of fixation, by the transoral approach.
Method: This study examined the possibility of implantation in vivo by the quantitative measurement on the dry atlantoaxial bone and implantation of the anterior atlantoaxial lateral mass intervertebral cage in specimens. Anterior atlantoaxial lateral mass intervertebral cages were implanted in 10 atlantoaxial joint specimens using the transoral approach. Eight anatomical parameters (width, the thickness, ordinates, abscissas, and declination angles of the mass) from each of the 30 dry atlas and axis bone specimens were measured. These parameters determined the size and the design of the cage and the way of implantation.
Results: The course of the vertebral artery forms the safe boundary for transoral surgery. The shape of the area of work exposure was an inverted trapezoid. In specimens, the anterior atlantoaxial lateral mass intervertebral cages could be successfully implanted using the transoral approach. The parameters of the human atlantoaxial lateral masses exposed anteriorly showed that there was enough space, for the safe anterior implantation of the cage. The surgery using the transoral atlantoaxial reduction and plate makes possible the implantation of the anterior cage.
Conclusion: The implantation of anterior atlantoaxial lateral mass intervertebral cage through transoral approach is possible.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jos.2017.02.011 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
[Atlantoaxial joint space and pharyngeal airway changes in skeletal class Ⅲ patients with mandibular deviation after combined orthodontic-orthognathic treatment: a cone-beam CT analysis].
Zhonghua Kou Qiang Yi Xue Za Zhi
January 2025
Department of Orthodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
To explore the changes of atlantoaxial joint spaces and pharyngeal airway after combined orthodontic-orthognathic treatment in skeletal class Ⅲ patients with mandibular deviation. A total of 34 adult skeletal class Ⅲ patients (10 males and 24 females) with mandibular deviation who received combined orthodontic-orthognathic treatment at the Department of Orthodontics and the Department of Orthognathic Surgery in the Stomatological Hospital of Chongqing Medical University from August 2014 to October 2021 were retrospectively selected. The patients were 22 (5) years old (18-33 years).
View Article and Find Full Text PDFSuperior biomechanical stability of pedicle screws compared to lateral mass screws: recommendations for bicortical positioning and enhancing bone contact in geriatric C1 vertebrae.
J Orthop Surg Res
January 2025
Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg- Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
Background: In atlantoaxial instabilities, posterior C1/C2 fusion using lateral mass screws (LMS) or pedicle screws (PS) in a mono- or bicortical position in the atlas is a typical treatment. The bone microstructure and positioning of the screw trajectories appear to be of significant relevance for stability.
Purpose: The aim of this study was a comparative analysis of the mechanical durability of screw fixation concerning microstructural characteristics of the trajectories of LMS and PS in mono- and bicortical position.
C1 Posterior Arch Screws for the Additional Reinforcement of Upper Cervical Spine Fixation: Surgical Technique and Preliminary Case Series.
World Neurosurg
January 2025
Department of Endocrinology, Yinzhou No.2 Hospital, Ningbo, Zhejiang 315040, China. Electronic address:
Objective: This study aims to evaluate the clinical outcomes of utilizing C1 posterior arch screws (PAS) combined with C2 translaminar screws as an adjunct for reinforcing upper cervical spine fixation.
Methods: A retrospective analysis was conducted on four male patients who underwent surgery involving C1 PASs and C2 translaminar screws between January 2022 and February 2024. Surgical technique involved the insertion of standard C1 lateral mass screws (LMS) and C2 pedicle screws, followed by the placement of C1 PASs and C2 translaminar screws for additional fixation.
Four-Point C2 Fixation for Unstable Atlas Fractures: Technical Note.
Cureus
December 2024
Neurological Surgery, Cleveland Clinic Foundation, Cleveland, USA.
Traumatic burst fractures of the atlas occur with axial loading of the cervical spine. Many of these injuries can be treated by nonsurgical management with external orthosis; however, cases with transverse ligament disruption or significant C1 lateral mass displacement require internal reduction and fixation. In patients with poor bone quality in the setting of osteoporosis or chronic illness, atlanto-axial fixation and reduction of the fracture can be a challenge, necessitating extension of fusion to the occiput, which significantly limits the range of motion.
View Article and Find Full Text PDFAn examination of commingled first tarsometatarsal and atlantoaxial joints by deviation analysis.
J Forensic Sci
December 2024
Harris County Institute of Forensic Sciences, Houston, Texas, USA.
This study follows up on previous research conducted by Litavec (J Forensic Sci., 68, 2023, 1780) on sorting commingled sacroiliac joints using deviation analysis. In the present report, the results of this technique are expanded to separating commingled first tarsometatarsal and atlantoaxial joints.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!