Shoulder
A Level I Evidence Study on RC Repair Pain Reduction Using Gabapentin
Can Gabapentin Help Reduce Postoperative Pain in Arthroscopic Rotator Cuff Repair? A Prospective, Randomized, Double-Blind Study

https://doi.org/10.1016/j.arthro.2009.11.010Get rights and content

Purpose

The aim of the study was to determine the effect of low-dose gabapentin on postoperative pain management in patients undergoing arthroscopic rotator cuff repair.

Methods

This randomized, double-blinded, placebo-controlled study included 46 patients. The patients were divided into 2 groups according to the drug administered 2 hours before surgery, either 300 mg of gabapentin or placebo. The primary outcome measure was the visual analog scale (VAS) score at 2, 6, 12, and 24 hours postoperatively. The secondary outcome measures were fentanyl consumption and side effects during the first 2 hours in the postanesthesia care unit and then at 6 and 24 hours postoperatively. The patients were evaluated for side effects including nausea, vomiting, respiratory depression, dizziness, drowsiness, voiding difficulty, and pruritus.

Results

The VAS scores at 2, 6, and 12 hours postoperatively were significantly lower in the gabapentin group than in the placebo group (P = .023, P = .019, and P = .022, respectively). The consumption of fentanyl, over a period of 24 hours, was not different in the comparisons between the groups (P = .686). The incidence of side effects was similar in the 2 groups.

Conclusions

A single dose of 300 mg of gabapentin reduced the VAS score during the first 24 hours postoperatively in patients undergoing shoulder arthroscopic rotator cuff repair, without significant side effects when compared with placebo. However, the fentanyl consumption did not differ between the gabapentin and placebo groups.

Level of Evidence

Level I, randomized controlled trial.

Section snippets

Methods

This was a randomized, double-blinded, placebo-controlled study. Patients were recruited from the Department of Orthopaedic Surgery from June 2007 to April 2008. The study was approved by the institutional review board, and informed consent was obtained from all patients.

Forty-six patients (ASA class I and II) who were scheduled for arthroscopic rotator cuff repair were eligible for this study. The exclusion criteria included a known allergy to gabapentin; the presence of any chronic pain

Results

From June 2007 to April 2008, 66 patients who fulfilled the inclusion criteria were considered for inclusion in the study (Fig 1). Of these, 52 were included in the study. Three patients were excluded in each group. Thus 46 patients were enrolled, 23 in the placebo group and 23 in the gabapentin group.

There was no significant difference in demographic data between the groups (Table 1). The VAS scores at 2, 6, and 12 hours postoperatively were significantly lower in the gabapentin group than in

Discussion

The results of this study showed that the VAS scores at 2, 6, and 12 hours postoperatively were significantly lower in the gabapentin group than in the placebo group after arthroscopic rotator cuff repair. However, the fentanyl consumption was similar at each time point in the 2 groups.

A full-thickness rotator cuff tear is 1 of the most common conditions for shoulder joint surgery, and the incidence increases with age.12, 13 After arthroscopic rotator cuff repair, severe pain can occur during

Conclusions

The results of this study suggest that a single dose of 300 mg of gabapentin reduced the VAS score during the first 24 hours postoperatively in patients undergoing shoulder arthroscopic rotator cuff repair, without significant side effects when compared with placebo. However, the fentanyl consumption was similar in the 2 groups.

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The authors report no conflict of interest.

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