Principles of Wound Closure in Chin Surgery

Chin morphology plays a critical role in facial aesthetics and harmony, making corrective surgical procedures essential in cases of deformity or disproportion. Among these, osseous genioplasty has emerged as a reliable and versatile technique for addressing vertical and horizontal discrepancies of the chin, with additional benefits in treating functional issues such as obstructive sleep apnea. This chapter provides an overview of the principles and best practices for wound closure in chin surgery, with a particular emphasis on the anatomical and surgical considerations surrounding the mentalis muscle. Proper identification, isolation, and precise reapproximation of the mentalis muscle during genioplasty are paramount for optimal aesthetic and functional outcomes. Failure to adequately manage this muscle can result in complications such as chin ptosis, lower lip incompetency, and paradoxical soft tissue distortion. Through a detailed surgical protocol and critical evaluation of current literature, this chapter underscores the importance of preserving soft tissue integrity and minimizing postoperative sequelae to ensure successful long-term results in genioplasty.