A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone Implants
Bone replacement implants for craniofacial reconstruction require to provide an adequate structural foundation to withstand the physiological loading. With recent advances in 3D printing technology in place of bone grafts using autologous tissues, patient-specific additively manufactured implants ar...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/12/2/101 |
| _version_ | 1797409100411174912 |
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| author | Jaejong Park Tareq Zobaer Alok Sutradhar |
| author_facet | Jaejong Park Tareq Zobaer Alok Sutradhar |
| author_sort | Jaejong Park |
| collection | DOAJ |
| description | Bone replacement implants for craniofacial reconstruction require to provide an adequate structural foundation to withstand the physiological loading. With recent advances in 3D printing technology in place of bone grafts using autologous tissues, patient-specific additively manufactured implants are being established as suitable alternates. Since the stress distribution of these structures is complicated, efficient design techniques, such as topology optimization, can deliver optimized designs with enhanced functionality. In this work, a two-scale topology optimization approach is proposed that provides multi-material designs for both macrostructures and microstructures. In the first stage, a multi-resolution topology optimization approach is used to produce multi-material designs with maximum stiffness. Then, a microstructure with a desired property supplants the solid domain. This is beneficial for bone implant design since, in addition to imparting the desired functional property to the design, it also introduces porosity. To show the efficacy of the technique, four different large craniofacial defects due to maxillectomy are considered, and their respective implant designs with multi-materials are shown. These designs show good potential in developing patient-specific optimized designs suitable for additive manufacturing. |
| first_indexed | 2024-03-09T04:09:26Z |
| format | Article |
| id | doaj.art-2d6be40a28be41df88b387e34273b612 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T04:09:26Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-2d6be40a28be41df88b387e34273b6122023-12-03T14:02:27ZengMDPI AGMicromachines2072-666X2021-01-0112210110.3390/mi12020101A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone ImplantsJaejong Park0Tareq Zobaer1Alok Sutradhar2Department of Mechanical Engineering, Prairie View A&M University, Prairie View, TX 77446, USADepartment of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210, USADepartment of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210, USABone replacement implants for craniofacial reconstruction require to provide an adequate structural foundation to withstand the physiological loading. With recent advances in 3D printing technology in place of bone grafts using autologous tissues, patient-specific additively manufactured implants are being established as suitable alternates. Since the stress distribution of these structures is complicated, efficient design techniques, such as topology optimization, can deliver optimized designs with enhanced functionality. In this work, a two-scale topology optimization approach is proposed that provides multi-material designs for both macrostructures and microstructures. In the first stage, a multi-resolution topology optimization approach is used to produce multi-material designs with maximum stiffness. Then, a microstructure with a desired property supplants the solid domain. This is beneficial for bone implant design since, in addition to imparting the desired functional property to the design, it also introduces porosity. To show the efficacy of the technique, four different large craniofacial defects due to maxillectomy are considered, and their respective implant designs with multi-materials are shown. These designs show good potential in developing patient-specific optimized designs suitable for additive manufacturing.https://www.mdpi.com/2072-666X/12/2/101topology optimizationcraniofacial surgerybone replacementsmulti-materialbone implants |
| spellingShingle | Jaejong Park Tareq Zobaer Alok Sutradhar A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone Implants Micromachines topology optimization craniofacial surgery bone replacements multi-material bone implants |
| title | A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone Implants |
| title_full | A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone Implants |
| title_fullStr | A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone Implants |
| title_full_unstemmed | A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone Implants |
| title_short | A Two-Scale Multi-Resolution Topologically Optimized Multi-Material Design of 3D Printed Craniofacial Bone Implants |
| title_sort | two scale multi resolution topologically optimized multi material design of 3d printed craniofacial bone implants |
| topic | topology optimization craniofacial surgery bone replacements multi-material bone implants |
| url | https://www.mdpi.com/2072-666X/12/2/101 |
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