Correction of congenital severe ptosis by suspension of a frontal muscle flap overlapped with an inferiorly based orbital septum flap.

BACKGROUND

This report introduces a new method for correction of congenital severe upper eyelid ptosis.

METHODS

The poor levator-function upper eyelid ptosis of 22 patients was corrected using suspension of the frontal muscle flap overlapped with an inferiorly based orbital septum flap as a motor unit, which substituted for the function of the levator muscle. The frontal muscle flap and orbital septum flap were formed in the frontal part and upper eyelid, respectively. Two flaps were overlapped and sutured to suspend the upper eyelid and to correct the congenital severe upper eyelid ptosis. This technique avoids the need for the linking structure necessary with the standard frontalis sling approach and improves the direction of pull to mimic that of a normal levator more closely than that of frontalis muscle advancement.

RESULTS

The follow-up period ranged from 6 to 20 months (mean, 12 months). A total of 4 patients had bilateral surgery, whereas 18 patients underwent unilateral surgery (26 eyelids). In 22 cases (26 eyes), congenital severe upper eyelid ptosis was treated using suspension of the frontal muscle flap overlapped with an inferiorly based orbital septum flap. After the operation, 17 cases (19 eyes) were followed up and analyzed retrospectively. The average follow-up period was about 12 months (range, 6-20 months). The 17 corrected eyes had a symmetric redundant fold of preseptal skin according to the marginal reflex distance-1 (MRD-1) measurement used to judge efficacy. Two eyes in this series required reoperation for undercorrection. Complications such as ectropion and corneal exposure were avoided.

CONCLUSION

Use of a frontalis muscle lap overlapped with an inferior based orbital septum flap to manage severe congenital upper eyelid ptosis is a useful procedure that results in substantial cosmetic and functional improvement with few complications.