Ketorolac for early postoperative analgesia

Area of Science:

• Anesthesiology
• Pharmacology
• Orthopedic Surgery

Background:

• Postoperative pain management is crucial for patient recovery.
• Ketorolac tromethamine is a non-steroidal anti-inflammatory drug (NSAID) used for pain relief.

Purpose of the Study:

• To evaluate the efficacy and onset speed of analgesia from a single dose of intravenous (IV) or intramuscular (IM) ketorolac tromethamine.
• To compare IV vs. IM ketorolac administration for postoperative pain control.

Main Methods:

• A double-blind, randomized, placebo-controlled trial was conducted.
• 112 patients with moderate to severe pain post-orthopedic surgery received either 30 mg ketorolac IV, 30 mg ketorolac IM, or placebo.
• Pain scores, time to first analgesic request, and patient acceptability were recorded.

Main Results:

• No significant difference in the speed of analgesia onset was observed between ketorolac groups and placebo.
• Ketorolac IV and IM showed statistically significant pain relief compared to placebo.
• Patient acceptability was higher for IV ketorolac than placebo, but 78-95% of patients required additional analgesia within 6 hours.

Conclusions:

• Ketorolac tromethamine as a sole analgesic agent was insufficient for controlling postoperative pain after major orthopedic surgery.
• Intravenous administration of ketorolac offered no advantage over the intramuscular route in terms of efficacy or speed of onset.
• Further research into multimodal analgesia strategies is warranted for effective postoperative pain management.