Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500115274) titled 'Efficacy and safety of bupivacaine liposome injection combined with routine treatment in early postoperative analgesia in patients undergoing lumbar surgery: a single center, prospective cohort study' on Dec. 24, 2025.

Study Type: Observational study

Study Design: Cohort study

Primary Sponsor: Hospital of Chengdu University of Traditional Chinese Medicine

Condition: Pain after lumbar surgery

Intervention: Exposure group:None

Recruitment Status: Not Recruiting

Phase: N/A

Date of First Enrollment: 2025-12-25

Target Sample Size: Exposure group:37;Non exposed group:37;

Countries of Recruitment: China...