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Atlantodentoplasty using the anterior retropharyngeal approach for treating irreducible atlantoaxial dislocation with atlantodental bony obstruction: a retrospective study.
Asian Spine J
January 2025
Department of Spinal Surgery, Henan Provincial People's Hospital, Zhengzhou, China.
Study Design: This was a retrospective study.
Purpose: The current study aimed to investigate the clinical efficacy of atlantodentoplasty using the anterior retropharyngeal approach against irreducible atlantoaxial dislocation with atlantodental bony obstruction.
Overview Of Literature: In cases of atlantoaxial dislocation with atlantodental bony obstruction, owing to the presence of an osteogenic mass between the atlas and odontoid process, reduction is challenging to complete using the posterior approach.
Morphometric analysis of the C1-2 zygapophysial joint in atlantoaxial dislocation patients with sandwich fusion of the craniovertebral junction.
Neurosurg Rev
January 2025
Department of Orthopaedics, Peking University Third Hospital, Beijing, China.
The combination of congenital C1 occipitalization and C2-3 non-segmentation (i.e. "sandwich fusion") results in early development of atlantoaxial dislocation (AAD).
View Article and Find Full Text PDFMalunion in a Self-stabilized Fracture of the Odontoid Process Type II with a Chronic Anterior Atlantoaxial Subluxation in a Neurologically Intact Patient: A Case Report.
Rev Bras Ortop (Sao Paulo)
November 2024
Serviço de Cirurgia de Coluna, Instituto Nacional de Rehabilitación, Cidade do México, México.
Atalanto-occipital dislocations with type II fractures of the odontoid process are rare, reporting 7 cases for every 784 upper cervical spine injuries, an incidence of <0.3% and are related to a high rate of morbidity and mortality. Regarding C2 fractures, the most common are in the odontoid process, representing 7%, classified by Anderson and D'Alonso according to their level, with the highest rate of pseudarthrosis in zone II of up to 85% are caused mainly by car accidents.
View Article and Find Full Text PDFTwo-stage surgical approach for type III odontoid fracture with C1-C2 fracture dislocation: a case report and management overview.
Ann Med Surg (Lond)
December 2024
Department of Neurosurgery, Neurosurgery Clinic, Birgunj, Nepal.
Introduction And Importance: Odontoid fractures of the second cervical vertebra (C2) are categorized into three types, with type III extending into the body of the axis. These fractures, often resulting from high-energy trauma, can cause significant instability and neurological issues. This case report discusses a 43-year-old male with a type III odontoid fracture and C1-C2 fracture dislocation, demonstrating the effectiveness of traditional neurosurgical techniques in managing such complex injuries.
View Article and Find Full Text PDFIntroducing Angle B: A Novel Quantitative Approach for Sagittal Alignment Reduction in Atlanto-Axial Dislocation Surgery.
Ther Clin Risk Manag
November 2024
Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, People's Republic of China.
Article Synopsis
- The study investigates the connection between cervical lordosis (CL) and the rotation angle of the axis in patients with atlantoaxial dislocation (AAD) to improve surgical planning.
- Imaging data from 23 AAD patients were analyzed, showing a strong linear relationship between changes in CL and a new angle B, which helps in understanding the axis's position.
- The findings suggest that the relationship between angle B and CL can significantly enhance the precision of surgical techniques for AAD patients.
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