• Stephanie Francalancia, Carole S L Spake, Luke Soliman, Nikhil Sobti, Elijah Persad-Paisley, Daniel Hu, Joseph Crozier, and Albert S Woo.
• Division of Plastic and Reconstructive Surgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA. Electronic address: stephanie_francalancia@brown.edu.
• World Neurosurg. 2024 Apr 1; 184: e821e829e821-e829.

BackgroundTwo techniques for paraspinous muscle flap closure of spine surgeries have been described: one with tension-free mobilization of the muscle flaps approximated at the midline and one with perforators more aggressively dissected to allow for overlapping of the flaps. We seek to compare the surgical outcomes in patients who underwent either type of complex spinal closure as no investigation has yet evaluated a superior technique.MethodsAn institutional review board (IRB)-approved retrospective analysis was conducted on all patients who underwent spine surgery followed by locoregional muscle flap complex closure performed by a single plastic surgeon between January 2016 and July 2021. Patients were divided into 2 groups based on which closure method was employed. Odds ratios (ORs) and 95% confidence intervals (CIs) were computed by multivariable logistic regression with Firth's correction.ResultsOne hundred and 10 patients with similar baseline demographics were included. There were significantly more smokers (15% vs. 0%, P = 0.02) and a significantly greater rate of postoperative radiation (40% vs. 17%, P = 0.009) in the overlapping group. After controlling for smoking and postoperative radiation, the incidence of surgical site infection, skin necrosis, dehiscence, hematoma, and seroma did not differ between the groups. The procedure length per centimeter of closure was shorter in the midline approximation group, although this data fell just short of significance (3.2 vs. 3.8 minutes/cm, P = 0.08).ConclusionsThe present study demonstrates that both the overlapping and midline approximation of muscle flaps are equally safe and effective strategies for locoregional closure of spinal wounds.Copyright © 2024 Elsevier Inc. All rights reserved.

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