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  • By Author: Salunke, Pravin x
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Pravin Salunke, Manish Sharma, Harsimrat Bir Singh Sodhi, Kanchan K. Mukherjee and Niranjan K. Khandelwal

C ongenital atlantoaxial dislocation is associated with a variable patient age at presentation. Factors determining this variability remain obscure. The stability of a joint is largely determined by the characteristics of the facets and their relationship to each other, although there are other factors as well. The orientation of the C1–2 facets in the sagittal plane could possibly determine the anterior slippage of C-1 over C-2, whereas the orientation of these facets in the coronal plane would determine the telescoping of C-2 into C-1 (vertical slip

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Pravin Salunke, Sushanta K. Sahoo, Arsikere N. Deepak, Mandeep S. Ghuman and Niranjan K. Khandelwal

T he management of atlantoaxial dislocation (AAD) is challenging due to the neural structures the craniovertebral junction (CVJ) houses and the proximity of the vertebral arteries (VAs). The dislocation may be reducible or irreducible. The reducible AAD can be defined as C1–2 alignment on extension or application of cervical traction. If the dislocation cannot be reduced despite cervical traction, it is labeled as an irreducible AAD. Management becomes difficult with irreducibility of the dislocation. Currently, the focus in treating such patients has

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Arsikere N. Deepak, Pravin Salunke, Sushanta K. Sahoo, Prashant K. Prasad and Niranjan K. Khandelwal

C ongenital atlantoaxial dislocation (AAD) is traditionally classified into irreducible or reducible. The dislocation is commonly seen in the anteroposterior plane (quantified by the atlantodental interval) or the vertical plane (defined as violation of the Chamberlain line, so-called basilar invagination [BI] Type I). 4 , 5 , 8 Often it can be a combination of the 2 planes. Reducible AAD (RAAD) is defined as C1–2 dislocation in either or both planes that reduces completely on extension or on application of traction. The failure to reduce completely