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June 1993

Interlocking Crawford Triangles in Frontalis Suspension

Author Affiliations

From the Department of Ophthalmology, Royal Victoria Hospital, McGill University (Drs Antoszyk, Tucker, Ling, and Codère), and the Département d'Ophtalmologie, Hôpital Sainte-Justine, Université de Montréal (Drs Antoszyk and Codère), Montreal, Quebec. Dr Antoszyk is currently affiliated with the Division of Ophthalmology, Mount Sinai Medical Center, Cleveland, Ohio.

Arch Ophthalmol. 1993;111(6):875-878. doi:10.1001/archopht.1993.01090060165043

• In Crawford's pattern of frontalis suspension, two bands are passed, one nasally and the other temporally, forming two base-down triangles with their apexes attached at the brow incisions. Over time, opposing vector forces in the center of the eyelid can cause "cheese-wiring" of the bands with resultant shortening of the inferior bases of both triangles and loosening of the suspensory loops. We modified the standard pattern by interlocking the bands centrally in the lid. A mathematical model was developed that demonstrates neutralization of these opposing forces, resulting in a symmetrical and flexible redistribution of the lifting forces. In support of this mathematical model, a retrospective analysis of 42 consecutive cases using this technique revealed good aesthetic results in terms of lid height, contour, and symmetry, with no important complications from this modification.