Unilateral Sacral Erector Spinae Plane Block for Thigh Amputation: Case Report.

Selection of anesthetic technique for thigh amputation is complicated by patients' comorbid conditions. The sacral erector spinae plane block (ESPB) is an emerging technique with potential as a primary anesthetic for thigh amputation. We detail a case involving a 79-year-old undergoing thigh amputation, where sacral ESPB proved insufficient, prompting a shift to spinal anesthesia. This instance underscores the necessity for further investigation into the reliability of the sacral ESPB for lower limb surgeries. Until such evidence is established, caution is advised in relying solely on the sacral ESPB for thigh amputations, and consideration of alternative techniques is recommended.