Lateral mass plate fixation of cervical spine

Curing disease: Indication Posterior cervical plate internal fixation for cervical spine is suitable for cervical instability caused by posterior osseous or ligament structural damage in single or multi-segment, without obvious vertebral injury. Surgical procedure 1. Expose the posterior median incision to reveal the cervical 1 to 6 lamina. 2. Select the screw penetration point on the upper and lower cervical vertebrae of the desired fusion segment. First, determine the midpoint of the articular process. The center point is 2 to 3 mm inward toward the head side as the penetration point. One K-wire is used to enter through this point. The sagittal plane is 25°, and the parallel facet joint faces. The anterior lateral side is drilled into the joint side block. A fine stripper is inserted into the facet joint to clearly mark the angle of inclination of the facet joint. 3. After the K-wire is drilled into the appropriate depth, select the AO steel plate of the appropriate length, bend it into the corresponding shape, insert it into the K-wire, and check whether the nail hole matches the K-wire, otherwise you need to change the K-wire wear. Into the location. The Kirschner wire was removed one by one, drilled with a 2.5 mm drill bit, and fixed with a 3.5 mm cortical screw. Since the anatomical landmarks have been covered by the steel plate, the screws should be screwed in under the image monitor. With the laminar spreader, each segment to be fixed can be retracted, and the steel plate can be fixed according to the retraction. 4. Remove the lamina from the fixed area, take the autogenous iliac bone graft, and suture the incision in turn.