Results 1 to 10 of about 2,242 (197)

Concomitant atlantoaxial and atlanto-occipital rotatory dislocation in children: Radiological features, diagnostic pitfalls, and long-term outcome [PDF]

Journal of Orthopaedic Surgery, 2021
While the pathological manifestation of atlantoaxial rotatory dislocation has been well described in the medical literature, the combined dislocation of the atlantoaxial and atlanto-occipital joints, or OAARD – short for occipital-atlantoaxial rotatory ...
Paul A Koljonen
exaly   +3 more sources

The clinical validity of atlantoaxial joint inclination angle and reduction index for atlantoaxial dislocation [PDF]

Frontiers in Surgery, 2023
ObjectiveAtlantoaxial dislocation patients with neurological defects require surgery. Sometimes, release surgery is necessary for irreducible atlantoaxial dislocation to further achieve reduction.
Jianyi Li, Bang Cheng Yang, Li Jianyi
exaly   +4 more sources

A Case of Initial Missed Diagnosis of Fatal Posterior Atlantoaxial Dislocation Without Odontoid Fracture [PDF]

Clinical Case Reports
We report a rare case of fatal posterior atlantoaxial dislocation without odontoid fracture. Attention should be paid to the possibility of delayed or missed diagnosis of cervical spine injury in patients with disturbance of consciousness.
Tetsuhiro Hagino, Tetsuo Hagino, Tetsuro Ohba   +2 more
doaj   +3 more sources

Vertical atlantoaxial dislocation [PDF]

European Spine Journal, 1999
An unusual case of vertical atlantoaxial dislocation without medulla oblongata or spinal cord injury is reported. The pathogenic process suggested occipito-axial dislocation. The case was treated surgically with excellent results on mobility and pain.
G Saillant, Saillant G
exaly   +3 more sources

Treatment of Atlantoaxial Dislocation in Children with Down Syndrome Using Posterior Atlantoaxial Screw Fixation [PDF]

Frontiers in Surgery, 2022
BackgroundTo investigate the effect of posterior atlantoaxial screw fixation for the treatment of atlantoaxial dislocation in children with Down syndrome (DS).MethodsChildren diagnosed with DS who underwent posterior atlantoaxial screw fixation or ...
Chengxin Li, Yiren Tian, Qiang Ren, Xiangqian Ji, Ziwei Mao, Ming Wu   +5 more
doaj   +2 more sources

Plough Fracture (Anterior Arch Fracture Type Traumatic Posterior Atlantoaxial Dislocation, TPAD-AOT Type III): A Retrospective Study of Nine Clinical Cases With Complete Imaging Data. [PDF]

Biomed Res Int
Fracture of the anterior arch of the atlas, accompanied by posterior atlantoaxial dislocation, typically presents on CT imaging as the odontoid process penetrating through and causing a high‐energy shear fracture of the anterior arch. This injury may occur with or without retained fracture fragments.
Yan T, Wu X, Wang Y, Yang H.
europepmc   +2 more sources

A Review of the Diagnosis and Treatment of Atlantoaxial Dislocations [PDF]

Global Spine Journal, 2014
Study Design Literature review. Objective Atlantoaxial dislocation (AAD) is a rare and potentially fatal disturbance to the normal occipital-cervical anatomy that affects some populations disproportionately, which may cause permanent neurologic deficits ...
Sun Y. Yang, Anthony J. Boniello, Caroline E. Poorman, Andy L. Chang, Shenglin Wang, Peter G. Passias MD   +5 more
doaj   +3 more sources

Effect of a new type of head and neck fixation and traction device in the surgical treatment of patients with irreducible atlantoaxial dislocation [PDF]

BMC Surgery, 2023
Background In order to improve the clinical medical technology, enhance the clinical effect and improve the disease detection rate, the clinical incidence rate of atlantoaxial dislocation and vertebral body malformation that are difficult to summarize is
Haiyi He, Xiang Li, Peng Li, Kai Zhang, Pengfei Zhang, Qiang Guo, Cheng Dong, Gaosheng Guo, Fuxiang Nie, Juan Du   +9 more
doaj   +2 more sources

Cervico-occipital junction infectious osteoarthritis complicated with atlantoaxial dislocation, cervical abscesses and epiduritis: A case report and review of the literature [PDF]

Radiology Case Reports
Craniocervical junction infections are considered a rare condition and can be associated with degradation of the odontoid ligaments and, the risk of a subsequent atlantoaxial subluxation or dislocation.
Yahya El Harras, Ola Messaoud, Kenza Berrada, Meryem Fikri, Najwa Ech-cherif Kettani, Mohamed Jiddane, Firdaous Touarsa   +6 more
doaj   +2 more sources

Feasibility and Safety of the C1 "Zero Angle" Screw: A Novel "In-Out-In" Technique for Atlantoaxial Dislocation. [PDF]

Orthop Surg
The C1ZAS with “in–out–in” technique is presented as an alternative to C1 PS in cases of AAD with a trajectory parallel to the sagittal plane. This method involves penetrating the recess of the atlas to achieve tricortical or quadricortical purchase for rigid fixation while minimizing the risk of injury to the V3 segment of the VA.
Chen Z, Huang X, Zou X, Lian P, Liu G, Chen J, Zhu C, Ma X.   +7 more
europepmc   +2 more sources