Atlantoaxial rotatory subluxation with ankylosis in an 11-year-old girl: a case report.
STUDY DESIGN: Report of an 11-year-old girl with a left atlantoaxial rotatory subluxation and ankylosis found 20 months after she sustained a cervical injury. OBJECTIVE: To describe the radiographic characteristics of this rare deformity assessed with a combination of spiral CT scan with multiplanar three-dimensional reformations and functional CT scan. SUMMARY OF BACKGROUND DATA: Atlantoaxial rotatory subluxation is a well-known condition, but its association with lateral C1- C2 ankylosis has not been reported to our knowledge. METHODS: For a complete assessment of the dislocation, a combined morphologic volumetric and functional CT study was performed. RESULTS: Spiral CT showed an atlantoaxial rotatory subluxation with lateral C1- C2 ankylosis. CT study also demonstrated a lateral C1- C2 subluxation and an ipsilateral occipitoatlantal subluxation. Cervical MRI showed no spinal cord compression despite the seriousness of the dislocation process. CONCLUSIONS: Whereas "classic" spiral study with multiplanar and three-dimensional reformations allows precise assessment of relationships between the upper cervical vertebrae, as well as bony changes, a functional CT study is essential for cervical biomechanic assessment of rotational instabilities of the craniovertebral junction and upper cervical spine.[1]References
- Atlantoaxial rotatory subluxation with ankylosis in an 11-year-old girl: a case report. Redon, H., Iacona, C., Lot, G., Laredo, J.D. Spine. (2004) [Pubmed]
Annotations and hyperlinks in this abstract are from individual authors of WikiGenes or automatically generated by the WikiGenes Data Mining Engine. The abstract is from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.About WikiGenesOpen Access LicencePrivacy PolicyTerms of Useapsburg
