Superior versus inferior conjunctival rotational flap in primary pterygium surgery

Abstract

Background Conjunctival rotational flap is one of the surgical treatment options for pterygium with variable recurrence rates. Taking a conjunctival flap from the superior bulbar area is sometimes unfeasible due to scarring, ocular surface disease, or previous trabeculectomy. Aim This study aimed to compare the superior versus the inferior conjunctival rotational flap results following primary pterygium excision. Patients and methods This is a retrospective, interventional, comparative study that enrolled 120 patients having primary pterygium. The patients were recruited from the Ophthalmology Department, Beni Suef University Hospital, Beni Suef, Egypt during the period from June 2020 to June 2022. The patients were classified into two groups: group I that included 73 (60.8%) patients who underwent the superior conjunctival flap technique, and group II that included 47 (39.2%) patients who underwent the inferior flap technique. Slit-lamp findings were reported during the scheduled appointments, with a focus on pterygium recurrence and other complications. Postoperative follow-up was performed for 6–18 months. Results The recurrence rate among the inferior conjunctival flap group (12.8%) was higher than in the superior conjunctival flap group (9.6%), with no statistically significant difference (P=0.585). No additional postoperative complications, such as flap separation, dullen formation, or granulomas occurred in either group. Conclusion There was no statistically significant difference in the outcome of the superior and inferior conjunctival rotational flaps in primary pterygium excision. We propose that inferior conjunctival flap preference can result in favorable outcomes in circumstances where the superior bulbar conjunctiva is required for protection or cannot be used.