The effect of cyclooxygenase-2 inhibition on acute and chronic donor-site pain after spinal-fusion surgery.
BACKGROUND AND OBJECTIVES: The development of chronic pain after spinal-fusion surgery represents a significant source of morbidity. One of the predictive factors for the development of chronic postsurgical pain is inadequate acute postoperative pain management. Further, the up-regulation of cyclooxygenase-2 (COX-2) after surgery may result in neuro-plastic changes that may contribute to a progression from acute to chronic pain. The goal of this prospective, randomized, double-blind study was to examine the effect of perioperative COX-2 inhibition on acute and chronic donor-site pain in patients undergoing spinal-fusion surgery. METHODS: Eighty patients scheduled to undergo instrumented posterior spinal fusion were randomized to either receive celecoxib 400 mg 1 hour before surgery, and then 200 mg every 12 hours after surgery for the first 5 days or receive matching placebo at similar time intervals. Patients were administered morphine via patient-controlled analgesia pump for the first 24 hours, and then acetaminophen and oxycodone tablets. Patients were asked to quantify their average pain on postoperative days 1 to 5. At 1 year after surgery, patients were questioned about the presence and subjective characteristics of any residual donor-site pain. RESULTS: Patients administered celecoxib reported lower pain scores and less opioid use during the first 5 postoperative days. Chronic donor-site pain was significantly higher (P<.01) in the placebo group (12 of 40, or 30%) compared with the celecoxib group (4 of 40, or 10%) at 1 year after surgery. CONCLUSIONS: The administration of celecoxib for the first 5 days after spinal-fusion surgery resulted in improved analgesia and a reduction in chronic donor-site pain at 1 year after surgery.
Reuben, SS; Ekman, EF; Raghunathan, K; Steinberg, RB; Blinder, JL; Adesioye, J
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