The effects of geometric uncertainties on computational modelling of knee biomechanics
The geometry of the articular components of the knee is an important factor in predicting joint mechanics in computational models. There are a number of uncertainties in the definition of the geometry of cartilage and meniscus, and evaluating the effects of these uncertainties is fundamental to unde...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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The Royal Society
2017-01-01
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| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170670 |
| _version_ | 1819202731142807552 |
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| author | Qingen Meng John Fisher Ruth Wilcox |
| author_facet | Qingen Meng John Fisher Ruth Wilcox |
| author_sort | Qingen Meng |
| collection | DOAJ |
| description | The geometry of the articular components of the knee is an important factor in predicting joint mechanics in computational models. There are a number of uncertainties in the definition of the geometry of cartilage and meniscus, and evaluating the effects of these uncertainties is fundamental to understanding the level of reliability of the models. In this study, the sensitivity of knee mechanics to geometric uncertainties was investigated by comparing polynomial-based and image-based knee models and varying the size of meniscus. The results suggested that the geometric uncertainties in cartilage and meniscus resulting from the resolution of MRI and the accuracy of segmentation caused considerable effects on the predicted knee mechanics. Moreover, even if the mathematical geometric descriptors can be very close to the imaged-based articular surfaces, the detailed contact pressure distribution produced by the mathematical geometric descriptors was not the same as that of the image-based model. However, the trends predicted by the models based on mathematical geometric descriptors were similar to those of the imaged-based models. |
| first_indexed | 2024-12-23T04:08:41Z |
| format | Article |
| id | doaj.art-e0218d035f304d49887c80027256f16e |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-23T04:08:41Z |
| publishDate | 2017-01-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-e0218d035f304d49887c80027256f16e2022-12-21T18:00:33ZengThe Royal SocietyRoyal Society Open Science2054-57032017-01-014810.1098/rsos.170670170670The effects of geometric uncertainties on computational modelling of knee biomechanicsQingen MengJohn FisherRuth WilcoxThe geometry of the articular components of the knee is an important factor in predicting joint mechanics in computational models. There are a number of uncertainties in the definition of the geometry of cartilage and meniscus, and evaluating the effects of these uncertainties is fundamental to understanding the level of reliability of the models. In this study, the sensitivity of knee mechanics to geometric uncertainties was investigated by comparing polynomial-based and image-based knee models and varying the size of meniscus. The results suggested that the geometric uncertainties in cartilage and meniscus resulting from the resolution of MRI and the accuracy of segmentation caused considerable effects on the predicted knee mechanics. Moreover, even if the mathematical geometric descriptors can be very close to the imaged-based articular surfaces, the detailed contact pressure distribution produced by the mathematical geometric descriptors was not the same as that of the image-based model. However, the trends predicted by the models based on mathematical geometric descriptors were similar to those of the imaged-based models.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170670the kneebiomechanicscartilagemeniscusgeometric uncertaintiescomputational modelling |
| spellingShingle | Qingen Meng John Fisher Ruth Wilcox The effects of geometric uncertainties on computational modelling of knee biomechanics Royal Society Open Science the knee biomechanics cartilage meniscus geometric uncertainties computational modelling |
| title | The effects of geometric uncertainties on computational modelling of knee biomechanics |
| title_full | The effects of geometric uncertainties on computational modelling of knee biomechanics |
| title_fullStr | The effects of geometric uncertainties on computational modelling of knee biomechanics |
| title_full_unstemmed | The effects of geometric uncertainties on computational modelling of knee biomechanics |
| title_short | The effects of geometric uncertainties on computational modelling of knee biomechanics |
| title_sort | effects of geometric uncertainties on computational modelling of knee biomechanics |
| topic | the knee biomechanics cartilage meniscus geometric uncertainties computational modelling |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170670 |
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