Abstract
Congenital atlantoaxial dislocation (AAD) associated with basilar invagination (BI) is a complex congenital malalignment at the craniovertebral junction. The olisthesis, atlantoaxial facet joint arthropathy, and the contraction of the anterior soft tissue make the treatment challenging. Our video demonstrates the surgical technique for posterior intra-articular distraction with cage placement to treat congenital atlantoaxial dislocation associated with basilar invagination.The video can be found here: https://youtu.be/7EQqW96HhN8
Highlights
0:20 This video demonstrates the surgical technique for posterior intra-articular distraction with cage placement in treating congenital atlantoaxial dislocation associated with basilar invagination (Duan et al, 2019; Goel, 2004)
The patient is a 58-year-old woman who presented with progressive dizziness, weakness, and numbness of the right upper extremity for 2 years
Hyperextension x-rays show that the atlantodental interval remained at more than 3 mm, defining this case as irreducible atlantoaxial dislocation
Summary
0:20 This video demonstrates the surgical technique for posterior intra-articular distraction with cage placement in treating congenital atlantoaxial dislocation associated with basilar invagination (Duan et al, 2019; Goel, 2004). A sagittal T2-weighted MRI shows the atlantoaxial dislocation and basilar invagination. There is sagittal obliquity of atlantoaxial facet joints (Chandra et al, 2014; Salunke et al, 2015). This patient was treated with intra-articular distraction and cage placement through a single-stage posterior approach.
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