Periocular Mohs Reconstruction by Lateral Canthotomy With Inferior Cantholysis: A Retrospective Study

Most eyelid defects after Mohs micrographic surgery are referred to oculoplastic surgery or plastic surgery for reconstruction, but growing evidence suggests the safety of such repairs performed by dermatologic surgeons is equivalent if not better. Lateral canthotomy with inferior cantholysis may be used by the dermatologic surgeon to reconstruct larger lower eyelid defects.

To demonstrate lateral canthotomy with inferior cantholysis performed by the dermatologic surgeon can result in safe, functionally and cosmetically acceptable surgical outcomes.

An institutional review board-approved retrospective study of repairs performed by a single dermatologic surgeon between January 2013 and August 2019. Patient demographics, operative and follow-up notes were reviewed. Two cosmetic dermatologists assessed aesthetic results based on final follow-up photographs using a visual analogue scale.

Eight cases were included in the analysis. Seventy-five percent of patients were men, with a mean age of 74.1 years old. All tumors were basal cell carcinoma; the mean defect size was 2.4 cm2. No serious complications or postoperative interventions occurred. The median cosmetic score was 85.6 ± 11.5.

Dermatologic surgeons can safely perform repairs of lower eyelid defects with lateral canthotomy with inferior cantholysis, achieving satisfactory functional and cosmetic outcomes.