Related Experiment Video
Updated: Mar 4, 2026
10:42
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
7.1K
Mandibular Symphysis Reconstruction Using Multi-segment Deep Circumflex Iliac Artery Flap and Customized Workflow
Chongyang Zheng1,2,3,4, Zhen Wang1,2,3,4, Han Cheng1,2,3,4
1. Departments of Oral-Maxillofacial Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine.
Plastic and Reconstructive Surgery
|March 3, 2026
Summary
Virtual surgical planning and template-guided deep circumflex iliac artery (DCIA) flap reconstruction reliably restore mandibular symphysis defects. This approach ensures high anatomical accuracy and procedural efficiency for complex cases.
Area of Science:
- Oral and Maxillofacial Surgery
- Reconstructive Surgery
- Biomedical Engineering
Background:
- Reconstructing mandibular symphysis defects with deep circumflex iliac artery (DCIA) flaps presents significant challenges due to anatomical complexity and technical demands.
- Virtual surgical planning (VSP) and template-guided techniques offer potential solutions to enhance accuracy and efficiency in these reconstructions.
Purpose of the Study:
- To evaluate the clinical outcomes of DCIA flap reconstruction for mandibular symphysis defects.
- To assess the morphological accuracy and perioperative complications associated with VSP and template-guided workflows.
Main Methods:
- Retrospective analysis of patients undergoing DCIA flap reconstruction for mandibular symphysis defects.
- Utilized VSP and Resection & Cutting-Osteotomy-Trimming (Re-COT) template systems for all cases.
- Primary outcome: morphological accuracy (superimposition, graft length, mandibular angles) compared to VSP models. Secondary outcomes: complication rates and functional results.
Main Results:
- Thirty-one patients (18 double-segment, 13 triple-segment grafts) were included.
- Negligible superimposition deviations and similar linear deviations (graft length, intercondylar, intergonial lengths) between double and triple-segment groups.
- Left-side coronal mandibular angle deviation was significantly lower in the double-segment group (P=0.015); other angular deviations were comparable.
Conclusions:
- VSP and Re-COT template-guided DCIA flap reconstruction is a reliable and accurate method for symphyseal mandibular defects.
- This approach ensures high anatomical accuracy and improves procedural efficiency.
- The technique is effective for restoring complex mandibular defects.
