Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial Stability
Custom reverse shoulder implants represent a valuable solution for patients with large bone defects. Since each implant has unique patient-specific features, finite element (FE) analysis has the potential to guide the design process by virtually comparing the stability of multiple configurations wit...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Mathematics |
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| Online Access: | https://www.mdpi.com/2227-7390/8/7/1113 |
| _version_ | 1797563223507992576 |
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| author | Jonathan Pitocchi Mariska Wesseling Gerrit Harry van Lenthe María Angeles Pérez |
| author_facet | Jonathan Pitocchi Mariska Wesseling Gerrit Harry van Lenthe María Angeles Pérez |
| author_sort | Jonathan Pitocchi |
| collection | DOAJ |
| description | Custom reverse shoulder implants represent a valuable solution for patients with large bone defects. Since each implant has unique patient-specific features, finite element (FE) analysis has the potential to guide the design process by virtually comparing the stability of multiple configurations without the need of a mechanical test. The aim of this study was to develop an automated virtual bench test to evaluate the initial stability of custom shoulder implants during the design phase, by simulating a fixation experiment as defined by ASTM F2028-14. Three-dimensional (3D) FE models were generated to simulate the stability test and the predictions were compared to experimental measurements. Good agreement was found between the baseplate displacement measured experimentally and determined from the FE analysis (Spearman’s rank test, <i>p</i> < 0.05, correlation coefficient ρs = 0.81). Interface micromotion analysis predicted good initial fixation (micromotion <150 µm, commonly used as bone ingrowth threshold). In conclusion, the finite element model presented in this study was able to replicate the mechanical condition of a standard test for a custom shoulder implants. |
| first_indexed | 2024-03-10T18:39:28Z |
| format | Article |
| id | doaj.art-6382c58702da40a4aa2629432a0bd658 |
| institution | Directory Open Access Journal |
| issn | 2227-7390 |
| language | English |
| last_indexed | 2024-03-10T18:39:28Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Mathematics |
| spelling | doaj.art-6382c58702da40a4aa2629432a0bd6582023-11-20T05:58:07ZengMDPI AGMathematics2227-73902020-07-0187111310.3390/math8071113Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial StabilityJonathan Pitocchi0Mariska Wesseling1Gerrit Harry van Lenthe2María Angeles Pérez3Materialise NV, 3001 Leuven, BelgiumMaterialise NV, 3001 Leuven, BelgiumBiomechanics Section, KU Leuven, 3001 Leuven, BelgiumMultiscale in Mechanical and Biological Engineering, Instituto de Investigación en Ingeniería de Aragón (I3A), Instituto de Investigación Sanitaria Aragón (IIS Aragón), University of Zaragoza, 50018 Zaragoza, SpainCustom reverse shoulder implants represent a valuable solution for patients with large bone defects. Since each implant has unique patient-specific features, finite element (FE) analysis has the potential to guide the design process by virtually comparing the stability of multiple configurations without the need of a mechanical test. The aim of this study was to develop an automated virtual bench test to evaluate the initial stability of custom shoulder implants during the design phase, by simulating a fixation experiment as defined by ASTM F2028-14. Three-dimensional (3D) FE models were generated to simulate the stability test and the predictions were compared to experimental measurements. Good agreement was found between the baseplate displacement measured experimentally and determined from the FE analysis (Spearman’s rank test, <i>p</i> < 0.05, correlation coefficient ρs = 0.81). Interface micromotion analysis predicted good initial fixation (micromotion <150 µm, commonly used as bone ingrowth threshold). In conclusion, the finite element model presented in this study was able to replicate the mechanical condition of a standard test for a custom shoulder implants.https://www.mdpi.com/2227-7390/8/7/1113finite element analysisshoulder implant stabilityimplant designreverse shoulder arthroplastymicromotion |
| spellingShingle | Jonathan Pitocchi Mariska Wesseling Gerrit Harry van Lenthe María Angeles Pérez Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial Stability Mathematics finite element analysis shoulder implant stability implant design reverse shoulder arthroplasty micromotion |
| title | Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial Stability |
| title_full | Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial Stability |
| title_fullStr | Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial Stability |
| title_full_unstemmed | Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial Stability |
| title_short | Finite Element Analysis of Custom Shoulder Implants Provides Accurate Prediction of Initial Stability |
| title_sort | finite element analysis of custom shoulder implants provides accurate prediction of initial stability |
| topic | finite element analysis shoulder implant stability implant design reverse shoulder arthroplasty micromotion |
| url | https://www.mdpi.com/2227-7390/8/7/1113 |
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