Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500114990) titled 'Comparison of the effects of bupivacaine liposome and bupivacaine hydrochloride on postoperative pain and delirium in patients undergoing anterior lumbar psoas space block for hip replacement surgery' on Dec. 19, 2025.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: Chengdu Fifth People's Hospital

Condition: hip fracture

Intervention: The bupivacaine liposome ( AIMSB group is abbreviated as the AL group):About 30 minutes before the operation, the patient received anterior iliopsoas muscle space block, 40ml/266mg bupivacaine liposome (for patients with a weight of less than 60Kg, th...