The common complications associated with osteotomy genioplasty:A literature review and meta-analysis

Objective The purpose of this literature review and meta-analysis is to provide an overview of common complications(neurosensory disturbances,infection,hematoma,soft tissue ptosis,secondary surgery)of osteotomy genioplasty and their risk factors to help surgeons fully inform patients of the risks before surgery and minimize the risks associated with osteotomy genioplasty through timely prevention and management during the perioperative period.Methods Multiple electronic databases were retrieved for reviews concerning common complications of osteotomy genioplasty.Randomized clinical trials,controlled clinical trials and cohort studies were considered for inclusion.The extracted data were analyzed by Rev-Man 5.3 software in order to calculate the pooled incidence of these complications and evaluate the related risk factors systematically.Results Seventeen studies were included.The mean incidence for neurosensory disturbances[0.01,95%CI(0.00-0.02)],infection[0.01,95%CI(0.00-0.01)],hematoma[0.04,95%CI(0.01-0.07)],soft tissue ptosis[0.02,95%CI(0.00-0.05)]and secondary surgery[0.02,95%CI(0.00-0.03)]were reported.Regularly reported risk factors for complications were patient's age and gender,general condition,smoking habits and surgical technique.Conclusion In this study,a literature review and meta-analysis were performed to provide an overview of common complications of osteotomy genioplasty and their risk factors.This information may help the surgeon to minimize the risk of these complications and inform the patient about the risks of complications associated with osteotomy genioplasty.

Horizontal Chin Bar

Background: Correction of long face and chin retrusion has a significant effect on facial aesthetic and symmetry. Bimaxillary (Bimax.) Operation has been performed for long face and bimaxillary dentoalveolar protrusion. But bimaxillary surgery cannot address all of complex deformity of mandible. The new technique using horizontal chin bar can treat mandibular dentoalveolar protrusion and chin retrusion in one setting. Objectives: To evaluate the results of mandible segmental osteotomy and jumping genioplasty;To illustrate the versatility and the ease of this procedure and to confirm the good to excellent clinical results obtained with minimal complications. Design: Retrospective study setting, all of the patients of university hospital and private practice who seek medical attention for long face and retruded (and/or deviated) chin were included in the study. Patients and surgeons satisfaction were evaluated. Results: 45 patients, aged 19 - 30 years (mean age, 24 ± 6 years) underwent the creation of a horizontal chin bar (4 - 7 mm wide) as an axis for two opposite bone movement (and a place for fixation) of mandibular dentoalveolar segment and lower chin segment [segmental lower jaw (Kolle’s) operation and genioplasty], and/or with concomitant Bimax. operation. The mean chin advancement was 8 mm (4 - 10 mm). Average setback for mandible was 3 mm (2 - 6 mm). No bone resorption was identified. No permanent nerve paresthesia was noted. There was one case of the bar fracture due to narrowness of the bar. 37 patients were highly satisfied and 8 were satisfied with the results. There was no dissatisfaction in our patients and surgeons. Conclusion: For long face and retruded chin one of the best treatments is horizotal chin bar method with very good long-term results. EBM: Level IV.

Asian facial recontouring surgery

Most East Asian women prefer a smaller and smoother facial contour.To meet this aesthetic preference,the concept and surgical techniques of modern facial bone contouring surgery have evolved.Initially,facial bone contouring surgery was limited to procedures like mandibular angle and malar reductions.However,contemporary Asian facial bone contouring surgery now places a stronger emphasis on addressing the entire facial profile from a three-dimensional perspective,a concept referred to as Profiloplasty.In this article,we review the evolution of surgical techniques in Asian facial bone contouring surgery and present its current surgical concepts,particularly focusing on the three-dimensional aspects.