Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit model
Abstract Background This study aimed to analyze the accuracy of the output of three-dimensional (3D) customized surgical guides and titanium implants in a rabbit model, and of mandibulectomy, reconstructive surgery, and surgical outcome; additionally, the correlation between surgical accuracy and su...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-01-01
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| Series: | Maxillofacial Plastic and Reconstructive Surgery |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40902-023-00375-9 |
| _version_ | 1811175918333329408 |
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| author | Min Keun Kim Min Ji Ham Won Rae Kim Hyung Giun Kim Kwang Jun Kwon Seong Gon Kim Young Wook Park |
| author_facet | Min Keun Kim Min Ji Ham Won Rae Kim Hyung Giun Kim Kwang Jun Kwon Seong Gon Kim Young Wook Park |
| author_sort | Min Keun Kim |
| collection | DOAJ |
| description | Abstract Background This study aimed to analyze the accuracy of the output of three-dimensional (3D) customized surgical guides and titanium implants in a rabbit model, and of mandibulectomy, reconstructive surgery, and surgical outcome; additionally, the correlation between surgical accuracy and surgical outcomes, including the differences in surgical outcome according to surgical accuracy, was analyzed. Results The output of implants was accurately implemented within the error range (− 0.03–0.03 mm), and the surgical accuracy varied depending on the measured area (range − 0.4–1.1 mm). Regarding surgical outcomes, angle between the mandibular lower borders showed the most sensitive results and distance between the lingual cusps of the first molars represented the most accurate outcomes. A significant correlation was noted between surgical accuracy in the anteroposterior length of the upper borders pre- and postoperatively and the angle between the mandibular lower borders (regression coefficient = 0.491, p = 0.028). In the group wherein surgery was performed more accurately, the angle between the mandibular lower borders was reproduced more accurately (p = 0.021). A selective laser melting machine accurately printed the implants as designed. Considering the positive correlation among surgical accuracy in the mandibular upper borders, angle between the mandibular lower borders, and more accurately reproduced angle between the mandibular lower borders, the angle between the mandibular lower borders is considered a good indicator for evaluating the outcomes of reconstructive surgery. Conclusion To reduce errors in surgical outcomes, it is necessary to devise a positioner for the surgical guide and design a 3D surgical guide to constantly maintain the direction of bone resection. A fixed area considering the concept of three-point fixation should be selected for stable positioning of the implant; in some cases, bilateral cortical bone fixation should be considered. The angle between the mandibular lower borders is a sensitive indicator for evaluating the outcomes of reconstructive surgery. |
| first_indexed | 2024-04-10T19:43:46Z |
| format | Article |
| id | doaj.art-090c38f5de7f4f48844a9edeac1bbdb2 |
| institution | Directory Open Access Journal |
| issn | 2288-8586 |
| language | English |
| last_indexed | 2024-04-10T19:43:46Z |
| publishDate | 2023-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Maxillofacial Plastic and Reconstructive Surgery |
| spelling | doaj.art-090c38f5de7f4f48844a9edeac1bbdb22023-01-29T12:06:48ZengSpringerOpenMaxillofacial Plastic and Reconstructive Surgery2288-85862023-01-0145111710.1186/s40902-023-00375-9Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit modelMin Keun Kim0Min Ji Ham1Won Rae Kim2Hyung Giun Kim3Kwang Jun Kwon4Seong Gon Kim5Young Wook Park6Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National UniversityFunctional Materials and Components R&D Group, Korea Institute of Industrial TechnologyFunctional Materials and Components R&D Group, Korea Institute of Industrial TechnologyFunctional Materials and Components R&D Group, Korea Institute of Industrial TechnologyDepartment of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National UniversityDepartment of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National UniversityDepartment of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National UniversityAbstract Background This study aimed to analyze the accuracy of the output of three-dimensional (3D) customized surgical guides and titanium implants in a rabbit model, and of mandibulectomy, reconstructive surgery, and surgical outcome; additionally, the correlation between surgical accuracy and surgical outcomes, including the differences in surgical outcome according to surgical accuracy, was analyzed. Results The output of implants was accurately implemented within the error range (− 0.03–0.03 mm), and the surgical accuracy varied depending on the measured area (range − 0.4–1.1 mm). Regarding surgical outcomes, angle between the mandibular lower borders showed the most sensitive results and distance between the lingual cusps of the first molars represented the most accurate outcomes. A significant correlation was noted between surgical accuracy in the anteroposterior length of the upper borders pre- and postoperatively and the angle between the mandibular lower borders (regression coefficient = 0.491, p = 0.028). In the group wherein surgery was performed more accurately, the angle between the mandibular lower borders was reproduced more accurately (p = 0.021). A selective laser melting machine accurately printed the implants as designed. Considering the positive correlation among surgical accuracy in the mandibular upper borders, angle between the mandibular lower borders, and more accurately reproduced angle between the mandibular lower borders, the angle between the mandibular lower borders is considered a good indicator for evaluating the outcomes of reconstructive surgery. Conclusion To reduce errors in surgical outcomes, it is necessary to devise a positioner for the surgical guide and design a 3D surgical guide to constantly maintain the direction of bone resection. A fixed area considering the concept of three-point fixation should be selected for stable positioning of the implant; in some cases, bilateral cortical bone fixation should be considered. The angle between the mandibular lower borders is a sensitive indicator for evaluating the outcomes of reconstructive surgery.https://doi.org/10.1186/s40902-023-00375-93D printingCustomized titanium implantSurgical guideAccuracyRabbit model |
| spellingShingle | Min Keun Kim Min Ji Ham Won Rae Kim Hyung Giun Kim Kwang Jun Kwon Seong Gon Kim Young Wook Park Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit model Maxillofacial Plastic and Reconstructive Surgery 3D printing Customized titanium implant Surgical guide Accuracy Rabbit model |
| title | Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit model |
| title_full | Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit model |
| title_fullStr | Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit model |
| title_full_unstemmed | Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit model |
| title_short | Investigating the accuracy of mandibulectomy and reconstructive surgery using 3D customized implants and surgical guides in a rabbit model |
| title_sort | investigating the accuracy of mandibulectomy and reconstructive surgery using 3d customized implants and surgical guides in a rabbit model |
| topic | 3D printing Customized titanium implant Surgical guide Accuracy Rabbit model |
| url | https://doi.org/10.1186/s40902-023-00375-9 |
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