occipitocervical fusion
Pronunciation: ok-SIP-i-toe-SER-vi-kal FYOO-zhun
A surgical procedure that fuses the occiput (skull base) to the cervical spine, typically extending to C1-C2.
Full Definition
Occipitocervical fusion is a complex posterior surgical procedure that creates a rigid fusion construct from the occiput to the upper cervical spine, most commonly to C2. This procedure is indicated for craniocervical instability, which may result from congenital anomalies, trauma, tumors, or inflammatory conditions. The surgery involves placement of rigid fixation from the occiput to cervical vertebrae, followed by bone grafting to promote fusion. While effective for stabilization, the procedure results in significant loss of cervical motion, particularly rotational movement that normally occurs at the atlantoaxial joint.
Usage
Usage note: Specify distal extent of fusion (typically C1 or C2); note significant functional impact on cervical motion.
In Context
- "Occipitocervical fusion was performed for basilar invagination with cord compression." — operative report
- "The patient developed craniocervical instability requiring occipitocervical fusion to C2." — surgical consultation note