This randomized, double-blind, controlled clinical trial after lumbar interbody fusion was conducted to assess (a) Whether multimodal analgesia lower VAS (visual analog scale) pain scores by a clinically important amount
The study results depicted that multimodal wound infiltration with an
NSAID and morphine did not yield any clinically significant minimization in
pain or opioid consumption. No pivotal benefit of adding these drugs to a
patient's aftercare regimen was attained. Taking into consideration the
potential risks of administering opioids and NSAIDs (such as serious adverse
events of NSAIDs, and polypharmacy in geriatrics), routine use of this approach
in clinical practice is not recommended.
This randomized, double-blind, controlled clinical trial after lumbar
interbody fusion was conducted to assess (a) Whether multimodal analgesia lower
VAS (visual analog scale) pain scores by a clinically important amount (b) Does
this analgesic approach minimize the amount of morphine patients consume after
their surgery (c) Is this technique linked with fewer opioid-related side
effects after surgery.
This study recruited 80 adult patients undergoing lumbar interbody fusion. The participants were randomly assigned into two groups: (1) Control group (n = 40) who received infiltration of the surgical incision at the end of the procedure with an injection of epinephrine 0.5 mg (0.5 mL) and 0.5% bupivacaine 100 mg (20 mL) (2) Multimodal group (n = 40), who received wound infiltration with the similar technique but with different medications: ketorolac 30 mg (1 mL), 0.5% bupivacaine 92.5 mg (18.5 mL), morphine 5 mg (0.5 mL), and epinephrine 0.5 mg (0.5 mL).
Using the VAS, pain at rest was recorded.
Postoperative morphine consumption (given utilizing a patient-controlled
analgesia pump) and opioid-related side effects were examined. The evaluation
was performed considering intention-to-treat principles. No loss to follow-up or
protocol deviations were witnessed. A 2-cm change on a 10-cm scale on the VAS
was considered as MCID (minimum clinically important difference). Differences
smaller than these were not found to be clinically significant.
No between-group differences in the VAS scores that exceeded the MCID were witnessed. The administration of multimodal injections is not linked to pain reductions. At 3 hours, the highest treatment effect was noted that showed only a -1.3 cm mean difference (below the MCID) between both the groups. Morphine consumption was very slightly higher in the Control group than in the Multimodal group as shown in Table 1:
The percentage of patients reporting opioid-related side effects was lower in the Multimodal group than in the Control group. The proportions of nausea and vomiting were elevated in the Control group than in comparison with the Multimodal group. All of these side effects were transient and none was severe as depicted in Table 2:
There is
no significant difference in pain after spine surgery with local wound
filtration of Morphine and Ketorolac.
Clinical Orthopaedics and Related Research
No Difference in Pain After Spine Surgery With Local Wound Filtration of Morphine and Ketorolac: A Randomized Controlled Trial
Weerasak Singhatanadgige et al.
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