Computer-assisted horizontal translational osseous genioplasty: a simple method to correct chin deviation

Keyhan, Seied Omid; Azari, Ali; Yousefi, Parisa; Cheshmi, Behzad; Fallahi, Hamid Reza; Valipour, Mohammad Amin

doi:10.1186/s40902-020-00278-z

Cited by 8 publications

(5 citation statements)

References 16 publications

(17 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surgical techniques, including horizontal translational osseous genioplasty and one-half wedge osteotomy genioplasty, include precise preoperative measurements and accurate movement of the bony segments. 13,14 The tip of mandible is relatively unrestrained and can be shifted in three dimensions. These anatomical characteristics led to development of diverse operative approaches and osteotomy techniques.…”

Section: Discussionmentioning

confidence: 99%

Aesthetic Genioplasty Based on Strategic Categorization

Hwang¹,

Lee

2023

Plastic &Amp; Reconstructive Surgery

View full text Add to dashboard Cite

Background: Genioplasty is a popular procedure used for lower facial contour correction. Various osteotomy techniques enable us to perform advancement, setback, reduction, or narrowing procedures. Computed tomographic images facilitate preoperative planning in detail. The authors used a novel planning method based on strategic categorization. The analytic results are described. Methods: This retrospective study reviewed 208 patients who underwent genioplasty procedures for facial contouring from October of 2015 to April of 2020. During preoperative evaluation of the mandible, the operative procedure selected was one of three types: (1) horizontal segment osteotomy, (2) vertical and horizontal segment osteotomy, and (3) bone graft after repositioning. Adequate osteotomies were followed by rigid fixation using a titanium plate and screws. The follow-up period ranged from 8 to 24 months (average, 17 months). The results were assessed based on medical records, photographs, and facial bone computed tomographic images. Results: Overall, the patients were satisfied with the outcomes and had responder-based improvement in lower facial contour and balance. Chin point deviations were noted in 176 cases; left-side deviation (n = 135) was more frequent than right-side deviation (n = 41). Strategic osteotomies based on precise measurements led to correction of asymmetries. Temporary partial sensory losses reported in 12 cases resolved within an average of 6 months after surgery. Conclusions: Each patient’s chief complaint and bony structures should be carefully evaluated before genioplasty procedures are performed. During the operation, meticulous osteotomy, precise movement, and rigid fixation are necessary. The strategic process used for genioplasty resulted in aesthetic balance and predictable outcomes. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

show abstract

Section: Discussionmentioning

confidence: 99%

Aesthetic Genioplasty Based on Strategic Categorization

Hwang¹,

Lee

2023

Plastic &Amp; Reconstructive Surgery

View full text Add to dashboard Cite

show abstract

“…The specific use of surgical osteotomy guides in genioplasties has been reported with results supporting its use and advantages over conventional free-hand surgery [16][17][18] . The surgical guides reported in literature were used to ensure proper localization of the osteotomy cuts, be that using tooth &/or bone supporting guides [7,19] .…”

Section: Discussionmentioning

confidence: 99%

“…Patient specific surgical guides for the osteotomies have been reported and showed positive results allowing for predictable results [6] . The printing of surgical guides has been proposed and proven successful, improving the accuracy and positioning of the fixation device [7] . The guides are fabricated in a polymer material that is quite cheap, affordable and easily printed using FDM technology.…”

Section: Introductionmentioning

confidence: 99%

Computer guided chin repositioning using patient specific osteotomy/screw hole/plate locating surgical guides

Omara

Emara

2022

Egyptian Dental Journal

View full text Add to dashboard Cite

“…In orthognathic surgery, the planning time for virtual surgical planning is shorter than that for conventional surgical planning [7,8]. Three-dimensional printed splints and guiding templates are used to transform virtual surgical planning to actual results [2,[9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of postoperative changes in condylar positions after orthognathic surgery using balanced orthognathic surgery system

Lee

Sohn

Park

et al. 2022

Maxillofac Plast Reconstr Surg

View full text Add to dashboard Cite

Background Many studies on maintaining the condyle in a normal or anatomical position during orthognathic surgery have been conducted to stabilize surgical outcomes and prevent iatrogenic temporomandibular joint complications. The aim of this study is to evaluate the changes in condylar positions after orthognathic surgery using virtual surgical planning via the balanced orthognathic surgery (BOS) system. Methods Postoperative changes in condylar position were retrospectively evaluated in 22 condyles of 11 patients with skeletal class III malocclusion who underwent orthognathic surgery using virtual surgical planning via the BOS system. The center point coordinates of the condylar head before and after orthognathic surgery were analyzed using voxel-based registration. Results Changes in the condylar position mainly occurred downward in the y-axis (−1.09 ± 0.62 mm) (P < 0.05). The change in the x-axis (0.02 ± 0.68 mm) and z-axis (0.01 ± 0.48 mm) showed no significant difference between before and after orthognathic surgery. Conclusion These results indicate that the changes in the condylar positions after orthognathic surgery using virtual surgical planning via the BOS system mainly occurred downward in the y-axis, with slight changes in the x- and z-axes. The change in the condylar position after orthognathic surgery using the BOS system is clinically acceptable.

show abstract

Computer-assisted horizontal translational osseous genioplasty: a simple method to correct chin deviation

Cited by 8 publications

References 16 publications

Aesthetic Genioplasty Based on Strategic Categorization

Aesthetic Genioplasty Based on Strategic Categorization

Computer guided chin repositioning using patient specific osteotomy/screw hole/plate locating surgical guides

Evaluation of postoperative changes in condylar positions after orthognathic surgery using balanced orthognathic surgery system

Contact Info

Product

Resources

About