Surgical tips for the implantation of BDYN^TM dynamic stabilization system: combining spinal navigation with motion preservation for low-grade lumbar degenerative spondylolisthesis.

Abstract

As required in every dynamic stabilization system, the implantation of the BDYN^TM device implies a perfect positioning of the screws and rods to benefit from its biomechanical properties. To achieve this goal, intra-operative imaging seems mandatory. Through a case report of a patient with symptomatic grade I lumbar degenerative spondylolisthesis, we present the surgical tips for the implantation of BDYN^TM dynamic stabilization system under the assistance of spinal navigation Surgivisio® 2D/3D. The pedicular screw convergence, their placement in the pedicles, and the proper alignment of the BDYN^TM system placed in neutral position are important steps of the surgery. Intra-operative spinal navigation helps achieving precise and safe positioning of the dynamic stabilization BDYN^TM device taking optimal advantages of its biomechanical characteristics.