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Published on: February 17, 2018
Does Marijuana Smoking Increase the Odds of Surgical Site Infection After Orthopaedic Surgery? A Retrospective Cohort
David Ruckle1, Alexander Chang2, Jose Jesurajan1
1Department of Orthopaedic Surgery, Loma Linda University Health, Loma Linda, CA; and.
Objectives:
Does marijuana smoking increase the risk of surgical site infection (SSI) after open reduction and internal fixation of fractures?
Design:
Retrospective.
Setting:
Single academic level 1 trauma center in Southern California.
Patient Selection Criteria:
Adult patients who underwent open treatment for closed fractures between January 2009 and December 2021, had hardware placed, and had at least 6 months of postoperative follow-up.
Outcome Measures And Comparisons:
Risk factors associated with the development of SSI were compared between current inhalational marijuana users and nonmarijuana users.
Results:
Complete data were available on 4802 patients after exclusion of 82 who did not have a complete variable set. At the time of surgery, 24% (1133 patients) were current users of marijuana. At the final follow-up (minimum 6 months), there was a 1.6% infection rate (75 patients). The average age of the infection-free group was 46.1 ± 23.1 years, and the average age of the SSI group was 47.0 ± 20.3 (P = 0.73) years. In total, 2703 patients (57%) in the infection-free group were male compared with 48 (64%) in the SSI group (P = 0.49). On multivariate analysis, longer operative times (OR 1.002 [95% CI, 1.001-1.004]), diabetic status (OR 2.084 [95% CI, 1.225-3.547]), and current tobacco use (OR 2.493 [95% CI, 1.514-4.106]) (P < 0.01 for all) were associated with an increased risk of SSI; however, current marijuana use was not (OR 0.678 [95% CI, 0.228-2.013], P = 0.48).
Conclusions:
Tobacco use, diabetes, and longer operative times were associated with the development of SSI after open reduction and internal fixation of fractures; however, marijuana smoking was not shown to be associated with the development of SSI.
Level Of Evidence:
Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
