Os odontoideum is considered a rare cervical spine anomaly. Depending on its type, it may or may not result in atlantoaxial instability, which can lead to anterior subluxation (the most common type) or posterior subluxation, with the latter being extremely rare. Posterior atlantoaxial subluxation is particularly dangerous, as it can progressively lead to myelopathy through various mechanisms and may ultimately result in quadriplegia or even death.
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http://dx.doi.org/10.7759/cureus.72749 | DOI Listing |
Sci Rep
January 2025
Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Huangpu District, Shanghai, 200003, People's Republic of China.
The necessity of routinely placing closed suction wound drainage in spinal surgery has been questioned. This study aims to assess if closed suction wound drainage is necessary for posterior atlantoaxial fixation via intermuscular approach. The functional outcomes of these 40 patients who underwent posterior atlantoaxial fixation via intermuscular approach without drainage tube (Group A) were compared with that of a control group, which consisted of 68 randomly enrolled cases with posterior atlantoaxial fixation via intermuscular approach with drainage tube (Group B).
View Article and Find Full Text PDFActa Neurochir (Wien)
December 2024
Department of Spine Surgery, Zentralklinik Bad Berka, Bad Berka, Germany.
Purpose: This study introduces a retrospective analysis of the surgical management of 213 consecutive cases of cervical spine metastases and Multiple Myeloma Cases.
Materials And Methods: Retrospective analysis of prospectively collected data in a single surgical center of patients who underwent surgery for tumors of the cervical spine between 1994 and 2017. Exclusion criteria were intradural tumors and primary tumors.
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).
J Clin Neurosci
December 2024
Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, 199 Dazhi Road, Harbin 150001, China. Electronic address:
Background: The atlantoaxial vertebral model was established in order to compare the biomechanical properties of C2 pedicle and translaminar screws from the perspective of the screws themselves.
Methods: A finite element model of the screw-vertebrae was developed. The screw load-displacement ratios were analysed under up/down and left/right load conditions; the vertebral load-displacement ratios under flexion/posterior extension (FLX/EXT), left/right lateral bending (LLB/RLB), and left/right rotation (LAR/RAR) load conditions; the bone-screw interface stress values and screw load-displacement ratios under physiological load conditions; and the structural stress values of the screw-rod structure under front/back and left/right load conditions.
Asian J Surg
December 2024
Orthopedics Department, Gansu Provincial Hospital, No.204, Donggang WestRoad, Lanzhou, 730000, Gansu Province, China. Electronic address:
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