3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry
Abstract Background The purpose of this study was to evaluate the pattern of predicted interosseous interference and to determine the influencing factor to volume of bony interference using a computer-assisted simulation system. This retrospective study recruited 116 patients with mandibular prognat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-09-01
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| Series: | Maxillofacial Plastic and Reconstructive Surgery |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40902-023-00400-x |
| _version_ | 1797577474005008384 |
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| author | Santhiya Iswarya Vinothini Udayakumar Dohyoung Kim So-Young Choi Tae-Geon Kwon |
| author_facet | Santhiya Iswarya Vinothini Udayakumar Dohyoung Kim So-Young Choi Tae-Geon Kwon |
| author_sort | Santhiya Iswarya Vinothini Udayakumar |
| collection | DOAJ |
| description | Abstract Background The purpose of this study was to evaluate the pattern of predicted interosseous interference and to determine the influencing factor to volume of bony interference using a computer-assisted simulation system. This retrospective study recruited 116 patients with mandibular prognathism who had undergone sagittal split ramus osteotomy (SSRO) with or without maxillary osteotomy. The patients were divided into 3 groups according to the amount of menton (Me) deviation: less than 2 mm (Group 1), 2–4 mm (Group 2), and more than 4 mm (Group 3). Changes in the distal segments following BSSRO and the volume of the interosseous interference between the proximal and distal segments were simulated after matching preoperative occlusion and postoperative expected occlusion with the cone-beam computed tomography data. Ramal inclinations and other skeletal measurements were analyzed before surgery, immediately after surgery, and at least 6 months after surgery. Results The anticipated interosseous interference was more frequently noted on the contralateral side of chin deviation (long side) than the deviated site (short side) in Groups 2 and 3. More interference volume was predicted at the long side (186 ± 343.9 mm3) rather than the short side (54.4 ± 124.4 mm3) in Group 3 (p = 0.033). The bilateral difference in the volume of the interosseous interference of the osteotomized mandible was significantly correlated with the Me deviation (r = − 0.257, p = 0.009) and bilateral ramal inclination (r = 0.361, p < 0.001). The predictor variable that affected the volume of the osseous interference at each side was the amount of Me deviation (p = 0.010). Conclusion By using the 3D simulation system, the potential site of bony collision could be visualized and successfully reduced intraoperatively. Since the osseous interference can be existed on any side, unilaterally or bilaterally, 3D surgical simulation is necessary before surgery to predict the osseous interference and improve the ramal inclination. |
| first_indexed | 2024-03-10T22:09:46Z |
| format | Article |
| id | doaj.art-d958d7f641b947d4b5a32dfd3551c42d |
| institution | Directory Open Access Journal |
| issn | 2288-8586 |
| language | English |
| last_indexed | 2024-03-10T22:09:46Z |
| publishDate | 2023-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Maxillofacial Plastic and Reconstructive Surgery |
| spelling | doaj.art-d958d7f641b947d4b5a32dfd3551c42d2023-11-19T12:41:30ZengSpringerOpenMaxillofacial Plastic and Reconstructive Surgery2288-85862023-09-0145111110.1186/s40902-023-00400-x3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetrySanthiya Iswarya Vinothini Udayakumar0Dohyoung Kim1So-Young Choi2Tae-Geon Kwon3Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National UniversityDepartment of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National UniversityDepartment of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National UniversityDepartment of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National UniversityAbstract Background The purpose of this study was to evaluate the pattern of predicted interosseous interference and to determine the influencing factor to volume of bony interference using a computer-assisted simulation system. This retrospective study recruited 116 patients with mandibular prognathism who had undergone sagittal split ramus osteotomy (SSRO) with or without maxillary osteotomy. The patients were divided into 3 groups according to the amount of menton (Me) deviation: less than 2 mm (Group 1), 2–4 mm (Group 2), and more than 4 mm (Group 3). Changes in the distal segments following BSSRO and the volume of the interosseous interference between the proximal and distal segments were simulated after matching preoperative occlusion and postoperative expected occlusion with the cone-beam computed tomography data. Ramal inclinations and other skeletal measurements were analyzed before surgery, immediately after surgery, and at least 6 months after surgery. Results The anticipated interosseous interference was more frequently noted on the contralateral side of chin deviation (long side) than the deviated site (short side) in Groups 2 and 3. More interference volume was predicted at the long side (186 ± 343.9 mm3) rather than the short side (54.4 ± 124.4 mm3) in Group 3 (p = 0.033). The bilateral difference in the volume of the interosseous interference of the osteotomized mandible was significantly correlated with the Me deviation (r = − 0.257, p = 0.009) and bilateral ramal inclination (r = 0.361, p < 0.001). The predictor variable that affected the volume of the osseous interference at each side was the amount of Me deviation (p = 0.010). Conclusion By using the 3D simulation system, the potential site of bony collision could be visualized and successfully reduced intraoperatively. Since the osseous interference can be existed on any side, unilaterally or bilaterally, 3D surgical simulation is necessary before surgery to predict the osseous interference and improve the ramal inclination.https://doi.org/10.1186/s40902-023-00400-xOsteotomySagittal split ramusAsymmetryFacialThree-dimensional imagingComputer assisted |
| spellingShingle | Santhiya Iswarya Vinothini Udayakumar Dohyoung Kim So-Young Choi Tae-Geon Kwon 3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry Maxillofacial Plastic and Reconstructive Surgery Osteotomy Sagittal split ramus Asymmetry Facial Three-dimensional imaging Computer assisted |
| title | 3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry |
| title_full | 3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry |
| title_fullStr | 3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry |
| title_full_unstemmed | 3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry |
| title_short | 3D simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry |
| title_sort | 3d simulation of interosseous interference in sagittal split ramus osteotomy for mandibular asymmetry |
| topic | Osteotomy Sagittal split ramus Asymmetry Facial Three-dimensional imaging Computer assisted |
| url | https://doi.org/10.1186/s40902-023-00400-x |
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