Preemptive Co-infiltration of Dexamethasone Palmitate With Ropivacaine for Postoperative Pain in Major Spinal Surgery
Pain, Postoperative
About this trial
This is an interventional prevention trial for Pain, Postoperative
Eligibility Criteria
Inclusion Criteria: Age 18-64 years; Patients scheduled for elective laminoplasty or laminectomy with no more than 3 levels under general anesthesia American Society of Anesthesiologists (ASA) physical status of I-III; Anticipated full recovery and cooperation within 2 hours postoperatively. Exclusion Criteria: History of spinal surgery; Inability to use a patient-controlled analgesia (PCA) pump or comprehend the pain visual analog scale (VAS); Body mass index (BMI)<15kg/m2 or >35kg/m2; Peri-incisional infection; History of diabetes mellitus and other metabolic diseases; History of severe cardiopulmonary, hepatic or renal dysfunction; Preoperative coagulation abnormalities (activated partial thromboplastin time greater than 1.5 times normal value); History of allergies to any of the study drugs; History of alcohol or drugs abuse (more than 2 weeks), or use of any analgesic within 24h before surgery; Use of systemic steroids within 1 week before surgery; History of psychiatric disorders, chronic neck or back pain; History of radiation therapy and chemotherapy or with a high probability of such treatment postoperatively; Pregnant or breastfeeding; Refusal to sign informed consent.
Sites / Locations
- Beijing Tiantan HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
The dexamethasone palmitate emulsion(DXP) plus ropivacaine group
The ropivacaine alone group
The local infiltration solution in the dexamethasone palmitate emulsion(DXP) plus ropivacaine group will consist of dexamethasone palmitate emulsion(DXP) and ropivacaine.
The local infiltration solution in the ropivacaine alone group will consist of ropivacaine alone.