scholarly journals Dystopic os odontoideum with atlantoaxial subluxation

2021 ◽  
Author(s):  
Heba Abdelmonem
Keyword(s):  
Atlantoaxial Subluxation ◽  
Os Odontoideum

scholarly journals Chronic posterior atlantoaxial subluxation associated with os odontoideum: a rare condition. A case report and literature review

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Tinnakorn Pluemvitayaporn ◽  
Sombat Kunakornsawat ◽  
Chaiwat Piyaskulkaew ◽  
Pritsanai Pruttikul ◽  
Warongporn Pongpinyopap
Keyword(s):  
Case Report ◽  
Literature Review ◽  
Rare Condition ◽  
Atlantoaxial Subluxation ◽  
Os Odontoideum

scholarly journals A Concomitant Occurrence of the Atlantoaxial Subluxation with Rare Vertebral Formation and Segmentation Defects

2021 ◽  
Vol 64 (5) ◽  
pp. 837-842
Author(s):  
Man Kyu Choi ◽  
Sung Bum Kim ◽  
Jun Ho Lee
Keyword(s):  
Vertebral Body ◽  
Congenital Anomalies ◽  
Clinical Signs ◽  
Atlantoaxial Subluxation ◽  
Neurological Deficits ◽  
Os Odontoideum ◽  
Vertebral Bodies ◽  
Multi Level ◽  
Preoperative Work Up ◽  
Work Up

An atlantoaxial subluxation from the unstable Os odontoideum by the failure of proper integrations between the embryological somites might be a commonly reported pathology. However, its suspicious origin or paralleled occurrence with other congenital anomalies of vertebral body might be a relatively rare phenomenon. The authors present two cases, who simply presented with clinical signs of prolonged, intractable cervicalgia without any neurological deficits, revealed this rare feature of C1–2 subluxation from the unstable, orthotropic type of Os odontoideum that coincide with congenitally fused cervical vertebral bodies between C2–3. Surprisingly, in one case, when traced from the lower cervical down to the thoracic-lumbar levels during the preoperative work-up process, was also compromised with multi-level butterfly vertebrae formations. Presented cases highlight the association of various congenital vertebrae anomalies and the rationale to fuse only affected joints.

Atlantoaxial Subluxation Associated With Os Odontoideum Fused To The Anterior Arch Of The Atlas: A Case Report

2021 ◽  
Author(s):  
Tatsuhiko Fujiwara ◽  
Koji Akeda ◽  
Norihiko Takegami ◽  
Junichi Yamada ◽  
Akihiro Sudo
Keyword(s):  
Case Report ◽  
Atlantoaxial Subluxation ◽  
Os Odontoideum ◽  
Anterior Arch

scholarly journals Atlantoaxial Subluxation with Os Odontoideum and its Surgical Treatment.

2001 ◽  
Vol 50 (3) ◽  
pp. 708-711
Author(s):  
Tsugukazu Toma ◽  
Tetsuya Yara ◽  
Takenari Miyazato ◽  
Katsuo Arakaki ◽  
Hirokazu Nohara ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Atlantoaxial Subluxation ◽  
Os Odontoideum

scholarly journals Posterior atlantoaxial subluxation due to os odontoideum combined with cervical spondylotic myelopathy : a case report

2007 ◽  
Vol 17 (S2) ◽  
pp. 275-279 ◽  
Author(s):  
Takao Motosuneya ◽  
Shigeru Hirabayashi ◽  
Hironobu Yamada ◽  
Yousuke Kobayashi ◽  
Shigeki Sekiya ◽  
...  
Keyword(s):  
Case Report ◽  
Cervical Spondylotic Myelopathy ◽  
Atlantoaxial Subluxation ◽  
Os Odontoideum

scholarly journals Atlantoaxial subluxation due to os odontoideum combined with cervical spondylotic myelopathy: case report and literature review

2020 ◽  
Vol 7 (1) ◽  
pp. 01-07
Author(s):  
Ye Tian
Keyword(s):  
Case Report ◽  
Surgical Treatment ◽  
Literature Review ◽  
Cervical Spondylotic Myelopathy ◽  
Atlantoaxial Subluxation ◽  
Os Odontoideum ◽  
Background Data ◽  
Children And Young Adults ◽  
Instrumentation Failure ◽  
Treatment Summary

Study Design: This was a case report and literature review Objective: We describe a case of os odontoideum combined with cervical spondylotic myelopathy (CSM), both of which require surgical treatment. Summary of Background Data: Cervical spondylotic myelopathy is often a disease of the older population, while os odontoideum is a well known disease mainly diagnosed in children and young adults but rarely in the middle-aged population. Os odontoideum combined with cervical spondylotic myelopathy, both of which require surgical treatment is even more rare, there was only one such case in the literature. Methods: We describe a 68-year-old male who underwent C1–C2 posterior screw-rod fixation for os odontoideum and cervical posterior single open-door laminoplasty for cervical spondylotic myelopathy. Results: Twelve months after surgery, the patient showed improvement and the plain radiographs showed no loss of correction or instrumentation failure. Conclusions: To our best knowledge, this is the second case of surgical stabilization for both cervical spondylotic myelopathy and myelopathy atlantoaxial subluxation due to os odontoideum.

scholarly journals Atlantoaxial Subluxation due to an Os Odontoideum in an Achondroplastic Adult: Report of a Case and Review of the Literature

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Abolfazl Rahimizadeh ◽  
Housain F. Soufiani ◽  
Valiolah Hassani ◽  
Ava Rahimizadeh
Keyword(s):  
Foramen Magnum ◽  
Atlantoaxial Subluxation ◽  
Atlantoaxial Instability ◽  
Os Odontoideum ◽  
Review Of The Literature ◽  
Suboccipital Craniectomy ◽  
Neural Tissues ◽  
Frequent Site ◽  
Small Foramen ◽  
Achondroplastic Dwarf

The authors report the first example of an adult achondroplastic dwarf with progressive quadriparesis secondary to atlantoaxial subluxation as a consequence of an os odontoideum. Actually, craniocervical region is a frequent site of compression and myelopathy in achondroplasia particularly in children as a result of small foramen magnum and hypertrophied opisthion. Moreover, very rarely in achondroplastic patients, coexistence of atlantoaxial instability as the sequel of os odontoideum can result in further compression of the already compromised cervicomedullary neural tissues, the scenario that has been reported only in five achondroplastic children. Herein, a 39-year-old achondroplastic male suffering such an extremely rare combination is presented. With C1-C2 screw rod instrumentation, atlas arch laminectomy, limited suboccipital craniectomy, and release of dural fibrous bands, reduction, decompression, and stabilization could be achieved properly resulting in steady but progressive recovery.

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