A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstruction
Abstract Background Computer-assisted surgery has transformed the approach to jaw resection and reconstruction in recent years. However, the extensive time and technical expertise needed for the planning and creation of patient-specific implants and guides have posed significant challenges for many...
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| Language: | English |
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BMC
2025-03-01
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| Series: | 3D Printing in Medicine |
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| Online Access: | https://doi.org/10.1186/s41205-025-00260-3 |
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| author | Ankit Nayak Jane Jingya PU Xingna YU Yu-Xiong Su |
| author_facet | Ankit Nayak Jane Jingya PU Xingna YU Yu-Xiong Su |
| author_sort | Ankit Nayak |
| collection | DOAJ |
| description | Abstract Background Computer-assisted surgery has transformed the approach to jaw resection and reconstruction in recent years. However, the extensive time and technical expertise needed for the planning and creation of patient-specific implants and guides have posed significant challenges for many surgeons in the field. This study introduces a novel algorithm designed to streamline the traditionally intricate and time-consuming Computer-Aided Design (CAD) process for developing patient-specific implants (PSIs). Methods The algorithm requires a three-dimensional (3D) model of the reconstructed part. A set of points is selected along the planned location of the plate by the surgeon, defining both the geometry and the positions of the screw holes. These points are then connected to create trace lines, followed by smoothing using cubic-spline data interpolation. Subsequently, a rectangle is swept along the trace line to form the skeleton of the PSI’s surface model. Screw holes are incorporated into the surface model, which is then converted into 3D printable file format. Finite element analysis is conducted to evaluate the functionality of the designed PSI. Results Implant design time exhibits significant reductions with the proposed algorithm, which optimizes the model files for printing. Finite Element Analysis is successfully applied to demonstrate the stress levels in the implant plate, which are within safe limits for titanium 3D-printed implants. Conclusions This algorithm offers a faster, more efficient, and accurate alternative to traditional CAD methods, with the potential to revolutionize the field of patient-specific implant design. Furthermore, the study demonstrates the utility of a mechanistic model for correlating patient bite force with muscle forces in the literature. |
| format | Article |
| id | doaj-art-91d7e5cf05da49baaf880102d32fc6f4 |
| institution | DOAJ |
| issn | 2365-6271 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | BMC |
| record_format | Article |
| series | 3D Printing in Medicine |
| spelling | doaj-art-91d7e5cf05da49baaf880102d32fc6f42025-08-20T03:02:21ZengBMC3D Printing in Medicine2365-62712025-03-0111111810.1186/s41205-025-00260-3A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstructionAnkit Nayak0Jane Jingya PU1Xingna YU2Yu-Xiong Su3School of Advanced Engineering, UPESDivision of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong KongDivision of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong KongDivision of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong KongAbstract Background Computer-assisted surgery has transformed the approach to jaw resection and reconstruction in recent years. However, the extensive time and technical expertise needed for the planning and creation of patient-specific implants and guides have posed significant challenges for many surgeons in the field. This study introduces a novel algorithm designed to streamline the traditionally intricate and time-consuming Computer-Aided Design (CAD) process for developing patient-specific implants (PSIs). Methods The algorithm requires a three-dimensional (3D) model of the reconstructed part. A set of points is selected along the planned location of the plate by the surgeon, defining both the geometry and the positions of the screw holes. These points are then connected to create trace lines, followed by smoothing using cubic-spline data interpolation. Subsequently, a rectangle is swept along the trace line to form the skeleton of the PSI’s surface model. Screw holes are incorporated into the surface model, which is then converted into 3D printable file format. Finite element analysis is conducted to evaluate the functionality of the designed PSI. Results Implant design time exhibits significant reductions with the proposed algorithm, which optimizes the model files for printing. Finite Element Analysis is successfully applied to demonstrate the stress levels in the implant plate, which are within safe limits for titanium 3D-printed implants. Conclusions This algorithm offers a faster, more efficient, and accurate alternative to traditional CAD methods, with the potential to revolutionize the field of patient-specific implant design. Furthermore, the study demonstrates the utility of a mechanistic model for correlating patient bite force with muscle forces in the literature.https://doi.org/10.1186/s41205-025-00260-3Computer-assisted surgerySTL3D PrintingJaw reconstructionComputer-Aided Design (CAD)Bite force correlation |
| spellingShingle | Ankit Nayak Jane Jingya PU Xingna YU Yu-Xiong Su A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstruction 3D Printing in Medicine Computer-assisted surgery STL 3D Printing Jaw reconstruction Computer-Aided Design (CAD) Bite force correlation |
| title | A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstruction |
| title_full | A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstruction |
| title_fullStr | A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstruction |
| title_full_unstemmed | A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstruction |
| title_short | A novel algorithm for streamlined surgeon-dominated patient-specific implant design in computer-assisted jaw reconstruction |
| title_sort | novel algorithm for streamlined surgeon dominated patient specific implant design in computer assisted jaw reconstruction |
| topic | Computer-assisted surgery STL 3D Printing Jaw reconstruction Computer-Aided Design (CAD) Bite force correlation |
| url | https://doi.org/10.1186/s41205-025-00260-3 |
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