id author title date pages extension mime words sentences flesch summary cache txt work_vel3hk57vbc5xcaw76v6vw6ty4 Atul Goel Basilar Invagination: Instability Is the Cause and Stabilization Is the Treatment 2020 3 .pdf application/pdf 1260 113 40 dedicated to the subject in 1998, basilar invagination was associated with 'fixed' or 'irreducible' atlantoaxial joint and decompression was considered to be the treatment.1 Depending spinal instability and the atlantoaxial facetal listhesis that eventually results in basilar invagination mimics lumbosacral listhesis.3 It was observed that in the entity of 'fixed' or 'irreducible' atlantoaxial dislocation, atlantoaxial joint is actually not stable or fused but is an unstable spinal segment and the joint in such cases is not only mobile but is pathologically hypermobile and can be reduced by manual distraction of the facets. spacers to facilitate and sustain facetal distraction in cases with basilar invagination, rotatory dislocation, and irreducible and even reducible atlantoaxial dislocation.2,6-8 As the experience has increased, it is now realized that distraction of the facets of atlas and axis and packing of bone graft in the articular cavity can lay a ground for solid bone arthrodesis and the ./cache/work_vel3hk57vbc5xcaw76v6vw6ty4.pdf ./txt/work_vel3hk57vbc5xcaw76v6vw6ty4.txt