Anatomical Result Of Occipital Cervical Fusion

Description

Occipital bone and the upper cervical spine are fused in this illustration with posterior instrumentation spanning the occiput to the cervical vertebrae. A contoured occipital plate sits on the squamous part of the occipital bone, positioned superior to the foramen magnum, and connects inferiorly to bilateral rods that descend toward C1 and C2. Screw fixation is shown anchored into the occiput and the posterior elements of the cervical spine, with the hardware aligned symmetrically on either side of the midline overlying the posterior arch of the atlas and the laminae of the axis. Metal dominates the surgical construct. Occipitocervical fusion is performed to stabilize the craniovertebral junction when normal atlanto-occipital and atlanto-axial motion becomes unsafe, most often after trauma, inflammatory disease such as rheumatoid arthritis with basilar invagination, congenital instability, or neoplastic and infectious destruction of the upper cervical joints. The fixed posterior perspective highlights the practical relationships surgeons plan around, including midline occipital purchase, the depth and angulation required to avoid intracranial penetration, and the proximity of C1 and C2 fixation to the vertebral artery groove and the spinal canal. Hardware position relative to the occipital squama and upper cervical posterior elements is the teaching point. Range of motion is sacrificed. Use this illustration for spine surgery chapters on posterior occipitocervical instrumentation, for neuroradiology or orthopedic conferences explaining postoperative anatomy, and for anatomy or biomechanics courses contrasting normal craniovertebral joint kinematics with fusion constructs in the human vertebral column. Anatomical accuracy verified by SciePro's Medical Advisory Board.