title: Craniovertebral junction anomaly with atlas assimilation and reducible atlantoaxial dislocation: a rare constellation of bony abnormalities.
abstract: A rare case of craniovertebral junction anomaly with associated reducible C(1)-C(2) dislocation and assimilation of the atlas is reported. The patient presented with neck pain with spastic quadriparesis. A posterior stabilization utilizing a contour rod, sublaminar wire fixation and onlay bone grafts between the occiput, and C(3) and C(4) vertebrae was performed followed by symptomatic improvement.
authors.affiliation: Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. rajkumar@sgpgi.ac.in
authors.forename: Raj
authors.initials: R
authors.lastname: Kumar
authors.forename: Samir Kumar
authors.initials: SK
authors.lastname: Kalra
authors.forename: Vivek Kumar
authors.initials: VK
authors.lastname: Vaid
authors.forename: Rabi Narayan
authors.initials: RN
authors.lastname: Sahu
authors.forename: Ashok Kumar
authors.initials: AK
authors.lastname: Mahapatra
mesh_terms: D000293:Adolescent; D001268:Atlanto-Axial Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D001270:Cervical Atlas; D002574:Cervical Vertebrae / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D004204:Joint Dislocations / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D009139:Musculoskeletal Abnormalities / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D011859:Radiography; D012886:Skull / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery