Cervical Spine Surgery Atlanto-axial Trans-articular Screw Fusion Fixation medico-legal exhibit videos. Illustrates the surgical technique for performing an atlanto-axial trans-articular screw fusion. This procedure is used to fuse the C1 (atlas) and C2 (axis) vertebra together to control pain or increase stability at the C1-2 segment. It shows the patient position, skin preparation and incision, the surgical approach using a guide pin to guide the bone drill during preparation of the screw track and screw insertion, the posterior fusion preparation and wire fixation of the bone graft, x-ray position checks and finally wound closure. An atlanto-axial trans-articular screw fusion is done to realign and stabilize the first and second cervical vertebra. During the procedure, bone graft is sometimes placed between the two vertebrae. Visit http://www.medilaw.tv for more information. Cervical Spine Surgery Atlanto-axial Trans-articular Screw Fusion Fixation medico-legal exhibit videos.