dorsal sacral foramina

例句：

1. 1. The surgeon performed a dorsal sacral foramen block to relieve the patient's pain.
   外科医生进行了背侧骶骨间隙阻滞，以缓解病人的疼痛。
2. 2. During the operation, the doctor carefully identified and blocked the dorsal sacral foramen.
   在手术过程中，医生仔细地识别并阻塞了背侧骶骨间隙。
3. 3.The patient was given an injection of local anesthetic to block the dorsal sacral foramen.
   患者接受了局部麻醉剂注射，以阻塞背侧骶骨间隙。