The Use of Computer-Guided Half Propeller Genioplasty for the Correction of Mandibular Asymmetry (A Mandibular Orthognathic Surgery Without a Condylar Intervention Technical Strategy)
el hadidi, yasser; El Dien Hany, Hossam; Zaki, Ahmed Hany; Gaber, Ramy Mohamed;
Abstract
Introduction:
Mandibular asymmetry is a facial deformity that results from multiple causes; among these are growth deficiency like hemifacial microsomia and growth excess as in condylar hyperplasia. The facial asymmetry caused by condylar hyperplasia has been treated over the years with different surgical and nonsurgical modalities dependent on the age of the patient and the severity of the condition. The authors in this article introduce a modified version of the propeller genioplasty technique.
Materials and Methods:
A new surgical technique “modified propeller genioplasty” is introduced for the management of facial asymmetry. Virtual surgical planning of the osteotomies and segment repositioning was done virtually. A cutting guide, positioning guides and 3D model of the corrected chin were 3D printed, to facilitate replication of the virtually planned osteotomies, prebending of plates, and segment repositioning.
Results:
The esthetically accepted result was achieved using this technique with minimal postoperative complications.
Conclusions:
The technique appeared to be accurate, simple, and more cost efficient when compared to patient-specific plates.
Mandibular asymmetry is a facial deformity that results from multiple causes; among these are growth deficiency like hemifacial microsomia and growth excess as in condylar hyperplasia. The facial asymmetry caused by condylar hyperplasia has been treated over the years with different surgical and nonsurgical modalities dependent on the age of the patient and the severity of the condition. The authors in this article introduce a modified version of the propeller genioplasty technique.
Materials and Methods:
A new surgical technique “modified propeller genioplasty” is introduced for the management of facial asymmetry. Virtual surgical planning of the osteotomies and segment repositioning was done virtually. A cutting guide, positioning guides and 3D model of the corrected chin were 3D printed, to facilitate replication of the virtually planned osteotomies, prebending of plates, and segment repositioning.
Results:
The esthetically accepted result was achieved using this technique with minimal postoperative complications.
Conclusions:
The technique appeared to be accurate, simple, and more cost efficient when compared to patient-specific plates.
Other data
Title | The Use of Computer-Guided Half Propeller Genioplasty for the Correction of Mandibular Asymmetry (A Mandibular Orthognathic Surgery Without a Condylar Intervention Technical Strategy) | Authors | el hadidi, yasser ; El Dien Hany, Hossam; Zaki, Ahmed Hany; Gaber, Ramy Mohamed | Keywords | Computer-aided surgery;condylar hyperplasia;genioplasty;hemifacial microsomia;mandibular osteotomy;orthognathic surgery;temporomandibular joint ankylosis | Issue Date | 1-Sep-2022 | Publisher | Wolters Kluwer | Journal | Journal of Craniofacial Surgery | Volume | 33 | Issue | 6 | Start page | 1879 | End page | 1882 | ISSN | 1049-2275 | DOI | 10.1097/SCS.0000000000008431 | PubMed ID | 34907947 | Scopus ID | 2-s2.0-85137164698 | Web of science ID | WOS:000847808200090 |
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