Postoperative Pain, Acute Clinical Trial
Official title:
Comparison of Patient-controlled Analgesia With Background Opioid Versus Non-opioid Infusion for Postoperative Pain in Patients Undergoing Total Knee Arthroplasty: a Randomized, Non-inferiority Study
Patients who undergoing total knee arthroplasty under spinal analgesia will be recruited and randomly assigned to the following two groups according to the regimen of PCA: (A) opioid group who receive only fentanyl citrate 1200mcg for continuous infusion drug, (B) non-opioid group who receive ketorolac tromethamine 150mg with nefopam hydrochloride 100mg for continuous infusion drug. All the patients will receive additional fentanyl citrate as bolus injection drug if they need more analgesics postoperatively.
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