METHOD OF FIXATION SCREWS IMPLANTATION INTO C2 VERTEBRA IN SURGICAL TREATMENT OF CRANIOVERTEBRAL INSTABILITY

摘要

FIELD: medicine.;SUBSTANCE: invention refers to medicine, namely to neurosurgery and orthopedics and can be used in surgical treatment of patients with deformities and instability in the craniovertebral zone. Articular parts of the arches and the lateral surface of the base of articular processes of the C2 vertebra to the opening of the vertebral artery are bilaterally skeletonized. Through the opening of the vertebral artery, a bulbous probe is used to determine the position of the upper medial wall of the vertebral artery canal in the C2 vertebra taken as an anatomical landmark when forming a bone canal for a fixing screw in the interarticular portion of the C2 vertebra. If necessary, resected posterolateral edge of opening of vertebral artery. Vertebral artery is mobilized. Under the control of the anatomical landmark, a bellied probe is used to form bilaterally bone channels for fixing screws in the vertebral interarticular portion C2. Using the bulbous probe, the fixing polyaxial screws are implanted into articular processes of the C2 vertebra, wherein bulbous probe screening vertebral artery in bone channel C2 of vertebra against damage.;EFFECT: method provides reducing the risk of vertebral artery injury by screening with a bulbous probe.;1 cl, 1 ex