intrathecal
/ˌɪntrəˈθiːkəl/
adjective
- Relating to or involving the space under the membrane that surrounds the spinal cord (the theca), often used for injections of medication.
- Intrathecal chemotherapy is sometimes used to treat certain types of cancer that affect the central nervous system.
- The patient received intrathecal anesthesia before the surgery on his lower spine.
- The doctor administered an intrathecal injection to deliver pain relief directly to the spinal fluid.