Results 11 to 20 of about 8,001 (173)

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, Kenneth MC Cheung
doaj   +2 more sources

The effect of atlantoaxial stabilization on juvenile idiopathic scoliosis involving Chiari malformation and syrinx

Journal of Craniovertebral Junction and Spine
Idiopathic scoliosis (IS) is frequently associated with Chiari malformation (CM) and syringomyelia, conditions thought to share a common underlying cause: Atlantoaxial instability.
Sen Harun Emre, Simsek Serkan, Kaptanoglu Erkan   +2 more
doaj   +2 more sources

Clinical Significance of Articulating Facet Displacement of Lateral Atlantoaxial Joint on 3D CT in Diagnosing Atlantoaxial Subluxation

Journal of the Formosan Medical Association, 2007
To improve the recognition of articulating facet displacement of lateral atlantoaxial joint (AFDLAJ), and to evaluate the significance of AFDLAJ in diagnosing atlantoaxial subluxation.
Shaoyin Duan, Xien Huang, Qingchi Lin, Guoneng Chen   +3 more
doaj   +2 more sources

Atlantoaxial Synovial Cyst Associated with Instability in a Chihuahua [PDF]

Case Reports in Veterinary Medicine, 2012
Objective. To describe an atlantoaxial degenerative cyst associated with instability. Animal. Chihuahua, male, 5 years old. Methods. Ever since colliding with a large dog two years prior to presentation, the dog suffered recurrent episodes of intractable
Franck Forterre, Núria Vizcaino Reves, Christina Stahl, Stephan Rupp, Karine Gendron   +4 more
doaj   +2 more sources

Dorsal C1-2 Spinal Cord Compression After Reduction of Atlantoaxial Posterior Dislocation Associated With Os Odontoideum: A Case Report and Literature Review. [PDF]

Orthop Surg
Successful reduction of os odontoideum‐associated atlantoaxial posterior dislocation may not always guarantee adequate C1–2 canal space. In patients with congenital atlas hypoplasia or posterior arch osteophytes, postreduction dorsal cord compression should be anticipated, and C1 posterior arch decompression may be required to prevent neurological ...
Wang J, Chen J, Li J, Zheng S, Wang L, Yang X, Song Y.   +6 more
europepmc   +2 more sources

Clinical Evaluation of a New Surgical Augmentation Technique for Transarticular Atlantoaxial Fixation for Treatment of Atlantoaxial Instability. [PDF]

, 2023
The feasibility of a newly developed augmentation of ventral fixation technique for surgical stabilization of atlantoaxial instability was clinically evaluated in a cohort of eleven dogs, and long-term clinical outcomes were retrospectively analyzed. The
Ligita Zorgevica-Pockevica, Veronika Stein, Haenssgen, Kati, Franck Forterre, Kati Haenssgen, Christina Precht, Precht, Christina, Zorgevica-Pockevica, Ligita, Düver, Pia, Pia Düver, Stein, Veronika, Forterre, Franck   +11 more
core   +2 more sources

Endoscopic-Assisted Posterior Atlantoaxial Fusion: Technical Innovation and Clinical Experience. [PDF]

Orthop Surg
Endoscopic‐assisted posterior atlantoaxial lateral mass fusion is introduced as a novel minimally invasive technique for treating atlantoaxial instability. The approach enables direct visualization, precise fixation, and effective bone fusion while minimizing muscle dissection, blood loss, and postoperative pain, achieving rapid neurological and ...
Zhu J, Huang C, Xue J, Chen J, Xu Y, Liu D, Zhan X, Liu C.   +7 more
europepmc   +2 more sources

Safety and Stability of a Combined C2 Screw Placement Strategy With Vertebral Artery Mobilization. [PDF]

Orthop Surg
An individualized C2 screw fixation strategy incorporating vertebral artery mobilization and atlantoaxial fusion cage support ensures safe, stable, and effective fixation in complex upper cervical anatomies, providing a reproducible approach for challenging craniovertebral junction reconstruction.
Song P, He S, Chen T, Chen H, Yang W, Tang X, Xu T, Yin X, Tan B.   +8 more
europepmc   +2 more sources

Atlantoaxial fixation–anterior or posterior approach: Critical review

Journal of Spinal Surgery, 2016
Atlantoaxial facet joints have been proposed as the center of mobility and also center for instability of the atlantoaxial region. Because of the high mobility of the atlantoaxial (C1-C2) motion segment, fusion rates at this level have been substantially
Vinu V Gopal
doaj   +1 more source

Posterior C1-C2 Temporary Fixation without Fusion for Recent Type-II Odontoid Fractures

Egyptian Spine Journal, 2019
Background Data: Posterior C1-C2 fusion techniques are the commonly used treatment for odontoid fracture. This procedure is usually associated with limitation in the cervical spine range of motion (ROM) especially the rotational motion.
Yasser El Banna MD., Samer Samy MD., Islam Sorour MD.   +2 more
doaj   +1 more source