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Comparison of crossed and parallel rod configurations used in posterior occipitocervical and atlantoaxial fixations: a retrospective cohort study.
J Orthop Surg Res
December 2024
The First School of Clinical Medicine, Southern Medical University, No.1838 North of Guangzhou Road, Guangzhou, 510515, People's Republic of China.
Background: This study is aimed to compare the differences in clinical outcomes between the crossed rod configuration and the parallel rod configuration applied in posterior occipitocervical and atlantoaxial fixations, and to assess the clinical applicability of crossed rods.
Methods: From January 2015 to December 2021, 21 patients with craniocervical junction disorders were treated surgically with the crossed rod technique (CR group). Meanwhile, 27 corresponding patients treated with the conventional parallel rod technique were included as control (PR group).
Biomechanical Evaluation of Clival Screw Fixation for Occipitocervical Instablity: A Finite Element Analysis.
Orthop Surg
December 2024
Department of Orthopaedics, Yunfu People's Hospital, Yunfu, China.
Objective: The clivus is trapezoidal in shape with uneven bone structure, the optimal number and position of screws for clival fixation are not clear. Therefore, this study aims to explore the optimization clival screw fixation method for occipitocervical instability using finite element analysis.
Methods: Seven finite element models were developed to evaluate biomechanical properties of clival screw fixation for treating occipitocervical stability, including (i) one clival screw fixation A1 and A2 models; (ii) two clival screws fixation B1 and B2 models; (iii) three clival screws fixation C1 and C2 models; (iv) four clival screws fixation D1 model.
Comparison between atlantoaxial and occipitocervical fusion: clinical implications of restoring the atlanto-occipital joint.
Spine J
November 2024
Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Article Synopsis
- Cervical myelopathy, a condition affecting the spinal cord in the neck, is commonly treated with either atlantoaxial fusion (AAF) or occipitocervical fusion (OCF), though there hasn't been a comprehensive study comparing their outcomes.
- The goal of this research was to evaluate and compare the clinical and radiological results of AAF versus OCF over a minimum follow-up period of 2 years, involving 64 patients.
- Results indicated that while both surgical techniques had similar overall outcomes in terms of neck pain and disability scores, patients who underwent OCF experienced significantly greater declines in lifting function and neck range of motion compared to the AAF group after the surgery.
Using additive manufacturing for craniocervical reconstruction in traditionally challenging cases.
Neurosurg Rev
November 2024
Department of Orthopaedics, Peking University Third Hospital, 49 North Garden Road, Beijing, 100191, China.
Retrospective case series. The aim of this study was to evaluate the clinical outcomes and effectiveness of using 3D printed implants in upper cervical spine and occipitocervical junction surgery. C2 primary tumor patients who required axial en bloc resection and other patients who required partial bone decompression using customized 3D printed implants or fixation devices for surgery were included.
View Article and Find Full Text PDFTransoral Atlantoaxial Reduction Plate (TARP) Technique for the Treatment of Irreducible Atlantoaxial Dislocation (IAAD) Caused by Old Odontoid Fracture.
Global Spine J
November 2024
Department of Orthopedics, General Hospital of Southern Theatre Command of PLA, Guangzhou, People's Republic of China.
Article Synopsis
- This study is a retrospective case series that evaluates the effectiveness of the TARP technique in treating IAAD resulting from old odontoid fractures over a follow-up period of 2 years.
- A total of 56 patients were treated using the TARP technique, with assessments including clinical symptoms, radiological measurements, and neurological status.
- The results showed that all surgeries were successful without any complications, with significant improvements in radiological parameters and clinical symptoms, confirming the TARP technique as an effective treatment option.
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