Zygomatic fractures: reduction with the T-bar screw.

The prominent zygomatic bone is one of the most commonly fractured. Fracture with displacement of the bone results in a cosmetic and functional deformity. The fractured zygomatic bone is usually dislocated in an inferomedial and posterior direction, which results in a cosmetic deformity with loss of ipsilateral malar prominence, possible depression of the zygomatic arch, asymmetry of the bony orbital circumference, and possible enophthalmos. Fracture of the zygomatic bone may result in ocular, maxillary antral, and mandibular dysfunction; diplopia, restricted extraocular muscle movement, or intraocular injuries; infection or obstruction of the maxillary antrum; and restricted mandibular function and malocclusion. Various surgical methods have been used to reduce the displaced fractured zygomatic bone. Our preferred method for reduction is the T-bar (Carroll-Girard) screw. This clinical study reviews 30 cases of zygomatic complex fractures, outlines the surgical technique used, illustrates the proper use of the T-bar screw with anatomic schematics and clinical cases, and presents illustrative case summaries.