Single Suture Mueller Muscle Conjunctival Resection (ssMMCR): A Modified Technique for Ptosis Repair

PURPOSE: To evaluate the efficacy in degree of ptosis correction achieved by single suture Mueller muscle conjunctival resection (ssMMCR) when compared with that of traditional MMCR. METHODS: A retrospective chart analysis of patients who underwent either ssMMCR or traditional MMCR at 2 institutions. Single suture MMCR was performed after using a ptosis clamp to imbricate conjunctiva and Mueller muscle. Margin-to-reflex distance 1 was measured pre- and postoperatively, and the change in margin-to-reflex distance 1 was analyzed for both groups. Patients were monitored in follow up for postoperative complications including lagophthalmos, corneal abrasions, and change in visual acuity. Statistical analysis was performed using the Microsoft Excel and Stata software programs. RESULTS: Twenty-seven and 30 patients underwent single suture and traditional MMCR, respectively. The ssMMCR and MMCR groups were followed postoperatively for approximately 4.2 and 9.7 months, respectively and the average margin-to-reflex distance 1 increased by 2.93 mm and 2.81 mm, respectively. Notably, there was no statistically significant difference in the means identified by t test. Of the 94 eyelid surgeries evaluated, 1 ssMMCR and 3 MMCR eyelids required further surgical revision for persistent ptosis, and 1 ssMMCR developed a transient corneal epithelial abrasion. Surgical revisions were rare with both procedures, and patient satisfaction was high. CONCLUSIONS: Single suture MMCR is an efficient and effective method for ptosis repair. It results in comparable outcomes including elevation in margin-to-reflex distance 1, safety profile, and reoperation rates, when compared with traditional MMCR.