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Hokkaido University Collection of Scholarly and Academic Papers >
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北海道歯学雑誌 >
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Pre-operative virtual planning followed by fabrication of patient-specific guiding instruments for mandibular deformity after fibula free flap reconstruction
| Title: | Pre-operative virtual planning followed by fabrication of patient-specific guiding instruments for mandibular deformity after fibula free flap reconstruction |
| Authors: | Ashikaga, Yuichi Browse this author →KAKEN DB | | Shinohara, Saki Browse this author | | Nakano, Shintaro Browse this author | | Ogawa, Naohiro Browse this author | | Matsuyama, Daigo Browse this author | | Murakami, Hirotake Browse this author | | Kuribayashi, Kazuyo Browse this author →KAKEN DB | | Ohiro, Yoichi Browse this author →KAKEN DB |
| Keywords: | CAD/CAM | | Virtual surgical planning | | Corrective Osteotomy | | Patient-specific guiding instrument | | Secondary mandibular reconstruction |
| Issue Date: | 15-Sep-2023 |
| Publisher: | 北海道歯学会 |
| Journal Title: | 北海道歯学雑誌 |
| Volume: | 44 |
| Start Page: | 69 |
| End Page: | 72 |
| Abstract: | Corrective osteotomy for secondary mandibular reconstruction is complex, and it is extremely difficult to achieve desirable three-dimensional positioning. The authors present a case for repositioning the mandibular segments of mandibular deformity after fibula free flap reconstruction using computer-assisted surgical simulation and patient-specific guiding instruments. A 69-year-old man developed severe mandibular deviation after segmental mandibulectomy and reconstruction with fibula free flap for basal cell carcinoma of the mental region. A virtual osteotomy was performed between the mandible and fibula on a 3D virtual model using simulation software. The proximal mandibular segments were placed in the ideal position using a 3D virtual model. The original contour of the mandible before the primary resection was used as a reference for repositioning. Patient-specific guiding instruments were fabricated for the pre-osteotomy and intraoperative positioning of the osteotomized mandible, enabling bone fragments to be repositioned and fixed using the pre-operative plan. Post-operative CT showed that the mandibular segments were precisely repositioned. In this case, virtual planning and patient-specific guiding instruments were useful in corrective surgery for mandibular deformity after fibula free flap reconstruction. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/90512 |
| Appears in Collections: | 北海道歯学雑誌 > 第44巻
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