Do medial sural artery perforator flaps have better clinical outcomes compared to the rectus abdominis perforator (DIEAP) flap in reconstruction of glossectomy defects? A Prisma guided meta-analysis

Background: There is an increasing evidence for the use of thin flaps based on vascular perforators for reconstructive surgeries. The medial sural and deep inferior epigastric artery flaps offer versatility for the reconstruction of major defects of the head and neck. Objectives: “Whether medial sural artery perforator (MSAP) flap or rectus abdominis perforator flap is better for the reconstruction of glossectomy defects in terms of functional outcome?” Data Sources: PubMed, Cochrane Library, clinicaltrials.gov and hand searches. Participants and Interventions: Patients who underwent tongue reconstruction with either MSAP flap or deep inferior epigastric artery perforator (DIEAP) flap. Study Appraisal and Synthesis Methods: Based on defined study criteria 6 studies were selected according to Prisma Guidelines. The overall estimated effect was categorized as significant where P < 0.05. Results: There was no significant difference between both flaps in terms of receptor site complications (P = 0.223). Overall odds ratio (OR) for complications was 1.35 (95% confidence interval [CI]: 0.412–0.736) and the test for overall effect t value was 2.836, P < 0.05. Overall OR was 6.01 (95% CI 0.5–7.45) and the test for overall effect t value was 1.41, P < 0.05 indicating there was a statistical difference in the intelligibility of speech. Limitations: Anatomical variations, under-reporting of studies and lack of universal tool for speech intelligibility. Conclusions and Implications of Key Findings: Both the flaps are comparable in terms of functional outcome. Medium-sized defects can be reconstructed with MSAP and composite larger defects would benefit from DIEAP. In females, anterolateral thigh flap still remains the choice for composite reconstructions.