Joint Distraction with a New Expandable Device for the Treatment of Basilar Invagination with Preservation of the C2 Nerve Root: A Cadaveric Anatomical Study
Fig. 1 (a) Cadaveric specimen, craniocervical junction, posterior view. Atlantoaxial joints and C2 nerve roots are exposed bilaterally. (b) The drilling of the C1-C2 joint to create an appropriate cavity…