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Background: The chin is the most prominent and median sector of the lower third of the face giving harmony to nose and lips. The authors present the application of piezoelectric scalpel for the correction of different chin deformities. The distinctive characteristics of this device allow us to avoid or reduce the immediate genioplasty complications., Methods: Fifty-five patients with defective chin have been treated from January 2006 to April 2008. Intraoral chinplasty was performed during the correction of dentofacial dysmorphisms or associated with nasal surgery. The authors used a piezoelectric cutting device to perform different osteotomies and if necessary, interpositional graft was used to stabilize bony segments., Results: Piezosurgery has been associated with a fewer number of postoperative complications, especially as regard intraoperative bleeding, nerve injuries (immediate and late), hematomas and seromas, and asymmetry (immediate and early). The mean time for completing the complete procedure of genioplasty with piezosurgery was almost the same compared with the saw and drill., Conclusions: Chinplasty represents one of the most common ancillary procedures and may be associated with corrective surgery of dentofacial dysmorphisms. Mental nerve injuries, asymmetries, intraoperative bleeding are the main immediate complications of genioplasty. Distinctive characteristics of ultrasonic piezoelectric osteotomy are selective cut of mineralized structure with less risk of vascular and nervous damage (microvibrations), intraoperative precision (thin cutting scalpel and no macrovibrations), blood free site (cavitation effect). In our experience, piezoelectric scalpel, compared with saw and drill, enables us to reduce or avoid immediate complications of chin surgery, helping the surgeon to reach patients' satisfaction., Level of Evidence: IV., Competing Interests: The authors report no conflicts of interest., (Copyright © 2021 by Mutaz B. Habal, MD.)

Background: The chin is the most prominent and median sector of the lower third of the face giving harmony to nose and lips. The authors present the application of piezoelectric scalpel for the correction of different chin deformities. The distinctive characteristics of this device allow the authors to avoid or reduce the immediate genioplasty complications., Methods: Fifty-five patients of defective chin have been treated from January 2006 to April 2008. Intraoral genioplasty was performed during the correction of dentofacial dysmorphisms or associated with nasal surgery. The authors used a piezoelectric cutting device to perform different osteotomies and if necessary, interpositional graft was used to stabilize bony segments., Results: Piezosurgery has been associated with a fewer number of postoperative complications, especially as regard intraoperative bleeding, nerve injuries (immediate and late), hematomas and seromas, asymmetry (immediate and early). The mean time for completing the complete procedure of genioplasty with piezosurgery was almost the same compared with the saw and drill., Conclusion: Genioplasty represents one of the most common ancillary procedures and may be associated with corrective surgery of dentofacial dysmorphisms. Mental nerve injuries, asymmetries, intraoperative bleeding are the main immediate complications of genioplasty. Distinctive characteristics of ultrasonic piezoelectric osteotomy are selective cut of mineralized structure with less risk of vascular and nervous damage (microvibrations), intraoperative precision (thin cutting scalpel and no macrovibrations), blood free site (cavitation effect). In the authors' experience, piezoelectric scalpel, compared with saw and drill, enables them to reduce or avoid immediate complications of chin surgery, helping the surgeon to reach patients' satisfaction.

Background: The aesthetic relevance of the chin and its relatively simple correction through different approaches make genioplasty one of the most performed aesthetic procedures of the face. Sliding genioplasty is extremely rewarding, particularly when performed as an adjunction to rhinoplasty, rhytidectomy, or jaw surgery. In the scientific literature, many different surgical techniques are described, but the biological implications and the economical impact can shape the surgeon's decision on which can be the best treatment: surgical correction with osteotomy, chin implants, or with fillers., Objective: The authors propose a decision making protocol for correcting chin microgenia based on a revision of 345 treated cases., Methods: A retrospective review of 345 cases of chin microgenia was undertaken to understand the proper preoperative assessment and therapeutic planning. A total of 135 patients were treated with surgical sliding genioplasty (group A): 60 patients (group B) have been grafted with alloplastic implants and the remaining 150 patients (group C) with hyaluronic acid. We recorded clinical indications, complications, and long-term aesthetic results at 3-year follow-up., Results: The analysis of the results based on the entity of the chin's sagittal defect, the chin soft-tissue thickness, the patient's age, and self-judgment allows for simplified treatment planning for sagittal chin deformities showing a greater predictability and a more stable long-term aesthetic result regarding sliding genioplasty compared to alloplastic implant placement and fillers., Conclusions: Our proposal for a simple and versatile protocol of chin microgenia aims to simplify the therapeutic indications for a predictable and a stable long-term aesthetic result., Level of Evidence Ii: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Importance: Long-term follow-up reference for experienced clinicians dedicated to profileplasty., Objective: To evaluate the long-term results and complications of combined rhinoplasty and genioplasty., Design: Retrospective study including objective and subjective evaluation before and after 3 years of undergoing simultaneous open rhinoplasty and genioplasty among a cohort of 90 patients. SETTING Academic medical center., Patients: A total of 90 cases of combined rhinoplasty and genioplasty performed from January 2002 through January 2004 were reviewed to evaluate the stability of the esthetic result., Main Outcome Measure: Long-term stability of the esthetic outcome of the simultaneous open rhinoplasty and genioplasty., Results: Soft-tissue Pogonion projection to the true vertical line and mandibular height (mandibular incisor tip to menton) were recorded. As far as reduction genioplasty patients are concerned, 45.6% of the patient population had a 100% stability after 3 years (<0.25 mm resorption measured at the menton). On the other hand, if augmentation genioplasty patients are considered, 52.4% (22 patients with a vertical augmentation range from 4-6 mm; mean, 5.3 mm; and 25 patients with a sagittal augmentation from 6-8 mm; mean, 7.2 mm) had 100% stability after 3 years. The chin was stable with no more than 1 mm of recurrence., Conclusions and Relevance: The results of the study indicate that the combined approach in correcting the facial profile is an effective procedure to achieve a more harmonic and consistent clinical outcome. The recurrence rate of less than 1 mm on the chin bone measurements is relevant to support this statement. An aesthetically proportionate face is strongly determined by the nasal-cervical relationship when observing the patient's profile. Even after a successful rhinoplasty, the patient's face can lack aesthetic attractiveness. Combined rhinoplasty-genioplasty is usually the best solution, particularly for patients with microgenia. It provides optimum patient satisfaction with a low incidence of recurrence., Level of Evidence: 4.

OBJECTIVE To present our experience in the use of fresh-frozen human bone allograft as an interpositional grafting material for sliding genioplasty to correct chin deformities. METHODS Ten patients underwent sliding genioplasty using morcellized and corticospongious fresh-frozen human bone. Four patients underwent orthognathic surgery associated with genioplasty. Six patient underwent genioplasty associated with rhinoplasty. Panorex, lateral, and frontal cephalogram and computed tomographic scans have been performed for each case preoperatively and 12 months after surgery. One patient subsequently asked for plate removal, and with his consent, a bone biopsy specimen was obtained during the operation. RESULTS Stable aesthetic and functional results were observed in all cases. No infections occurred, and no bone resorption has been clinically or radiologically observed. CONCLUSION The use of fresh-frozen bone allograft reduces patient morbidity and operative time, providing a stable and excellent aesthetic result.