M-Shaped Genioplasty: A New Surgical Technique for Sagittal and Vertical Chin Augmentation: Three Case Reports

Abstract

p s a s Several surgical techniques are available for correcting and giving harmony to the lower third of the face. In this respect, some well-known techniques seek to correct the shape and size of the chin using different kinds of chin implants or osteotomies in an effort to move it and change its spatial location, thus determining a new facial contour. For alloplastic techniques, silicone implants have been used in a supraor subperiosteal location for improving the projection and profile of the lower third of the face. Also, high-density porous polyethlene implants (Medpore; Porex Surgical Inc, Irvine, A) have been used, with 100to 300m pores that ould permit a fibrous growth inside of it, thus inreasing their fixation. The complications described in this technique include infection, extrusion, dehiscence, inappropriate volume, displacement, capsular contraction, retraction of the lower lip, and bone resorption. Genioplasty is a versatile surgical technique that allows one to modify the natural anatomy of the chin in all 3 spatial directions. It was first described in the