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dc.contributor.authorIuppariello, L.
dc.contributor.authorEsposito, Luca
dc.contributor.authorGargiulo, P.
dc.contributor.authorGíslason, M. K.
dc.contributor.authorJónsson, H.
dc.contributor.authorSarno, A.
dc.contributor.authorCristofolini, L.
dc.contributor.authorBifulco, P.
dc.date.accessioned2020-12-15T10:23:17Z
dc.date.available2020-12-15T10:23:17Z
dc.date.issued2020-01-01
dc.date.submitted2020-12
dc.identifier.citationIuppariello L, Esposito L, Gargiulo P, Gíslason MK, Jónsson H, Sarno A, et al. A CT-based method to compute femur remodelling after total hip arthroplasty. Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization. 2020:1-10.doi:10.1080/21681163.2020.1835540.en_US
dc.identifier.issn21681163
dc.identifier.doi10.1080/21681163.2020.1835540
dc.identifier.urihttp://hdl.handle.net/2336/621604
dc.descriptionTo access publisher's full text version of this article click on the hyperlink belowen_US
dc.description.abstractBone remodelling after total hip arthroplasty has been largely observed and investigated. Most studies rely on projective images and only few obtain 3D information with limited spatial resolution. This study proposes a method to provide quantitative, 3D high-resolution data about femur bone density variations, by means of CT volume processing. This would offer a tool for further research and clinical studies. Five patients subjected to primary, cementless total hip arthroplasty were considered. Calibrated CT volumes were acquired before, just after surgery and 1 yr later. Bone remodelling hinders accurate alignment of femur volumes acquired after a year; instead, prosthesis stem remains unchanged. Thus, after metal artefact reduction, prosthesis was segmented, and stem-based accurate alignment was obtained. A test to exclude prosthesis migration was performed by considering specific femur anatomical landmarks. Bone density error due to artefact reduction and realignment was estimated. Quantitative differences in bone mineral density were computed for each voxel, providing a resolution of about 1 mm. Preliminary results showed that the femur underwent consistent remodelling after a year. Widespread bone density losses appeared in those areas where strain-adaptive remodelling is normally expected, particularly about the calcar. Conversely, distal areas with clear stem-bone contact showed considerable density gains.en_US
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.relation.urlhttps://www.tandfonline.com/doi/abs/10.1080/21681163.2020.1835540?journalCode=tciv20en_US
dc.subjectCT image processingen_US
dc.subjectfemur bone remodellingen_US
dc.subjectprosthesis rigid realignmenten_US
dc.subjectTotal hip arthroplastyen_US
dc.subjectMjaðmaaðgerðiren_US
dc.subjectLiðskiptaaðgerðiren_US
dc.subject.meshArthroplasty, Replacement, Hipen_US
dc.titleA CT-based method to compute femur remodelling after total hip arthroplastyen_US
dc.typeArticleen_US
dc.identifier.eissn21681171
dc.contributor.departmentaRehabilitation Unit, AORN Santobono Pausilipon Children’s Hospital, Napoli, Italy bDepartment of Engineering, University of Campania ‘Luigi Vanvitelli’. Aversa (CE), Italy cDepartment of Structures for Engineering and Architecture (DIST), University “Federico II” of Naples, Napoli, Italy dInstitute for Biomedical and Neural Engineering, Department of Science, Landspıtali University Hospital, University of Iceland, Reykjavik, Iceland eDepartment of Orthopaedic Sciences, Landspıtali University Hospital, University of Iceland, Reykjavik, Iceland fINFN Sect. Of Napoli $and$ Department of Physics, University “Federico II” of Naples, Napoli, Italy gDepartment of Industrial Engineering, University of Bologna, Bologna, Italy hDepartment of Biomedical Signal Processing Lab for Clinical Research, Istituti Clinici Scientifici Maugeri SpA – Società Benefit, Telese Terme, BN, Italyen_US
dc.identifier.journalComputer Methods in Biomechanics and Biomedical Engineering: Imaging and Visualizationen_US
dc.rights.accessClosed - Lokaðen_US
dc.departmentcodeORT12
dc.departmentcodeRES12
dc.identifier.eid2-s2.0-85093094292
dc.identifier.scopusidSCOPUS_ID:85093094292
dc.source.journaltitleComputer Methods in Biomechanics and Biomedical Engineering: Imaging and Visualization


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