Rhombic Flap: A Useful Flap for Small-to-Medium Defects of the Medial Canthus.

BACKGROUND: Medial canthal defects are frequently encountered yet present specific challenges for the reconstructive surgeon. Surgical repair in this area may inadvertently lead to canthal webbing, ectropion, and/or epiphora. The rhombic flap is a versatile workhorse in the reconstructive armamentarium for canthal defects. OBJECTIVE: To describe the use of the inferiorly based rhombic flap for reconstructing defects on the medial canthus. METHODS: A retrospective analysis of the Mohs micrographic surgery cases was performed. All cases in which an inferiorly based rhombic flap was used for canthal reconstruction between 2012 and 2017 were identified. Defect size, location, and any postoperative complications were noted. Surgical scars were scored using the Vancouver Scar Scale. RESULTS: There were 34 cases (17 men and 17 women). Age ranged from 38 to 86 (mean 69). Defect size varied from 0.6 to 2.1 cm in diameter. Postoperative complications were uncommon and minor. CONCLUSION: The rhombic flap is a versatile and useful option for reconstructing surgical defects of the medial canthus.