Dr. Clarisa Robles is a board-certified neurologist and neurosurgeon who works at our Los Angeles hospital. She’s seen here performing a hemilaminectomy, a surgery in which a portion of the vertebra is removed.
Each vertebra contains two pedicles and lamina, which are bony sections that form the sides of the vertebral arch and function as a base for the vertebra. The purpose of a hemilaminectomy is to remove a portion of the pedicle and lamina while still maintaining the stability of the spine.
The removal of bone allows access into the spinal canal to remove any material compressing the spinal cord, such as herniated disc material or cancerous masses. This helps to release nerve tissue from pressure.