Reduction Gonioplasty

Fu, Xi; Rui, Lu; Niu, Feng; Chen, Ying; Wang, Meng; Qiao, Jing; Chen, Jing; Gui, Lai

doi:10.1097/sap.0000000000000670

Cited by 6 publications

(5 citation statements)

References 23 publications

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“…Mandibular contour surgery can improve the mandibular contour and is the most popular aesthetic craniofacial surgery in East Asia. [2][3][4][5][6][7][8] The intraoral approach with an invisible scar for MCS is widely accepted. Intraoral MCS, however, are difficult.…”

Section: Discussionmentioning

confidence: 99%

“…In East Asia, a square face with a short, receding chin is regarded as unattractive . Mandibular contour surgeries (MCS), including reduction gonioplasty and genioplasty, are tremendously popular and are 2 of the most effective ways to achieve the highly desirable oval and slender facial proportions …”

Section: Introductionmentioning

confidence: 99%

“…As a mainstream method, reduction gonioplasty by intraoral approach has advantages, including no cutaneous scar and a low risk of injuring the facial nerves; however, this technique provides limited operating field exposure and restricted operating space . Consequently, visualization of the deep mandibular angle and precise bony excess resection can be difficult.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4] Mandibular contour surgeries (MCS), including reduction gonioplasty and genioplasty, are tremendously popular and are 2 of the most effective ways to achieve the highly desirable oval and slender facial proportions. 2,[5][6][7] As a mainstream method, reduction gonioplasty by intraoral approach has advantages, including no cutaneous scar and a low risk of injuring the facial nerves [2][3][4]7 ; however, this technique provides limited operating field exposure and restricted operating space. 8 Consequently, visualization of the deep mandibular angle and precise bony excess resection can be difficult.…”

mentioning

confidence: 99%

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Assessment of a Novel Standardized Training System for Mandibular Contour Surgeries

Qiao

et al. 2019

JAMA Facial Plast Surg

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IMPORTANCE Mandibular contour surgeries (MCS) involving reduction gonioplasty and genioplasty are rewarding for patients with square faces; however, the procedure has inherently difficult clinician learning curves and unpredictable skill acquisitions. To our knowledge, there has been no effective, validated training model that might improve training and surgical outcomes for MCS. OBJECTIVE To establish and evaluate a standardized intraoral MCS training system. DESIGN, SETTING, AND PARTICIPANTS Intraoral MCS training models were constructed by 3-dimensional (3D) skull models covered with elastic head cloths. From April 2016 to April 2018, 90 consecutive MCS patients (30 per group) and 15 craniofacial surgery fellow physicians (5 per group) were enrolled in the prospective observational study. They were randomly divided into intervention groups (A and B) and a control group (C). Intervention groups A and B completed 5 training sessions on the intraoral MCS training models before each clinical case. Group A performed both the model training sessions and clinical surgeries with surgical templates. Control group C had no extra training before clinical surgeries. All groups completed clinical surgery under supervision on 6 patients. The duration of follow-up was at least 3 months postoperatively. INTERVENTIONS Intraoral MCS training models were provided to intervention groups (A and B) before clinical surgeries. Surgical templates were provided to intervention group A both in training sessions and clinical surgeries. MAIN OUTCOMES AND MEASURESThe completion time, surgical accuracy, learning curves, operating confidence, surgical skill, and outcome satisfaction of each procedure were recorded and analyzed with paired t test and 1-way analysis of variance test by blinded observers.RESULTS All 90 patients (14 men, 76 women; mean [SD] age, 26 [5] years) were satisfied with their postoperative mandible contours. The intervention groups (A and B), especially the group with surgical templates (A) showed improvements in clinical surgery time (mean [SD], group A 147.2 [24.71] min; group B, 184.47 [16.28] min; group C, 219.3 [35.3] min; P = .001), surgical accuracy (mean [SD], group A, 0.68 [0.22] mm; group B, 1.22 [0.38] mm; group C, 1.88 [0.54] mm; P < .001), learning curves, and operators' confidence and surgical skill. CONCLUSIONS AND RELEVANCEThe intraoral MCS training model was effective and practical. The optimal intraoral MCS training system included intraoral MCS training models and surgical templates. The system significantly decreased clinical surgery time, improved surgical accuracy, shortened the learning curve, boosted operators' confidence, and was associated with better acquisition of surgical skills.LEVEL OF EVIDENCE NA.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Assessment of a Novel Standardized Training System for Mandibular Contour Surgeries

Qiao

et al. 2019

JAMA Facial Plast Surg

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“…Over the past few decades, mandibular angle osteotomy with outer cortex grinding has become the preferred cosmetic procedure for improving the appearance of the lower third of the facial contour in both women and men. Although several studies have confirmed that the long-term effect of this procedure is stable, [1][2][3] some patients still seek revision surgery due to bone irregularity at the inferior border of the mandible or secondary angulation of the mandibular angle after surgery. 4,5 However, the postoperative mandibular body morphology rarely changes, and bone regeneration mainly occurs in the angle region.…”

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confidence: 99%