J Korean Assoc Oral Maxillofac Surg.  2023 Dec;49(6):365-368. 10.5125/jkaoms.2023.49.6.365.

Setback genioplasty with rotation for aesthetic mentolabial soft tissue: a case report

• Hong JB
• Ohe Jy
• Shim GJ
• Kwon YD

• KMID: 2550301
• DOI: http://doi.org/10.5125/jkaoms.2023.49.6.365

Abstract

The mentum plays an important role in the aesthetics of the face, and genioplasty is performed to improve an unbalance of the mentum. Among the various surgical approaches, setback genioplasty is used to create an aesthetic jaw-end appearance by moving the mentum backward when it protrudes more than normal. However, conventional setback genioplasty may be aesthetically disadvantageous because the profile of the mentum could become flat. This case study attempted to overcome the limitations of conventional setback genioplasty by rotating the position of the menton and pogonion. We devised a new method for setback genioplasty by rotating the segment anteroinferiorly. Using virtual surgery, we were able to specify the range of surgery more accurately and easily, and the surgery time was reduced. This case report showed the difference in chin soft tissue responses between conventional setback genioplasty and setback genioplasty with rotation.

Keyword

Mentolabial angle; Setback genioplasty; Virtual surgery; Rotation

Figure

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  Fig. 1 Virtual surgery of genioplasty.

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  Fig. 2 Rotation setback genioplasty surgery. A. Draw a segmental line in accordance with virtual surgery. B. Segmentation along the line. C. Position distal segment backward. D. Rotate distal segment clockwise. E. Border osteotomy. F. Plating with 8-hole rectangular shape plate.

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  Fig. 3 Preoperative and 2 years postoperative cephalography of rotation setback genioplasty.

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  Fig. 4 Preoperative and 2 years postoperative photos of rotation setback genioplasty. A. Preoperative 45° angle view. B. Postoperative 45° angle view. C. Preoperative lateral view. D. Postoperative lateral view.

Reference

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