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The effect of osteochondral lesion size and ankle joint position on cartilage behavior - numerical and in vitro experimental results

dc.rights.licenseopenen_US
dc.contributor.authorRAMOS, A.
dc.contributor.authorROCHA, C.
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorMESNARD, Michel
IDREF: 10601417X
dc.date.accessioned2021-12-21T09:54:46Z
dc.date.available2021-12-21T09:54:46Z
dc.date.issued2021-12-01
dc.identifier.issn1350-4533en_US
dc.identifier.urioai:crossref.org:10.1016/j.medengphy.2021.10.014
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/124270
dc.description.abstractEnOsteochondral lesion of the talus is defined as damage in the cartilage that covers the talus bone, compromising the integrity of the joint in the long term. Due to the low incidence of this pathology, there are few studies to understand the importance of lesion size and position in cartilage strains. The purpose of this study is then to analyze the influence of the lesion size in joint behavior. A 3D virtual and in vitro model of a patient's injured ankle joint was developed. The models were built using CT scan and MRI images, to obtain the CAD models of intact and with 10 mm lesion size for 3D print models using additive manufacturing. The physical model was tested with 685N applied vertically to determine experimentally the principal strains and contact pressures in the cartilage. Five finite element models were developed with lesion dimensions (5 to 20 mm) and with 3 ankle joint positions. The numerical and experimental results were correlated with an R2 = 0.86 justified by the complexity of the model geometry. The maximum principal strain was 2566µε in the plantar flexion position without lesion. The experimental contact area between cartilages increased by 1.2% in the 10 mm lesion size for 431 mm2. The maximum stress in the cartilage was observed for a 20 mm lesion size with 2.5 MPa. The 5 and 10 mm sizes present similar results; the 15 mm lesion size presents a stress increase of 13% comparatively with 10 mm. Plantar flexion seems to be the most critical configuration; stress increases with an increase of lesion size around the cartilage.
dc.language.isoENen_US
dc.sourcecrossref
dc.subject.enAnkle
dc.subject.enArticular cartilage
dc.subject.enExperimental model
dc.subject.enNumerical model
dc.subject.enOsteochondral lesion
dc.title.enThe effect of osteochondral lesion size and ankle joint position on cartilage behavior - numerical and in vitro experimental results
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.medengphy.2021.10.014en_US
dc.subject.halSciences de l'ingénieur [physics]/Autreen_US
bordeaux.journalMedical Engineering and Physicsen_US
bordeaux.page73-82en_US
bordeaux.volume98en_US
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionCNRSen_US
bordeaux.institutionINRAEen_US
bordeaux.institutionArts et Métiersen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-03498788
hal.version1
hal.date.transferred2021-12-21T09:54:48Z
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
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