The biomechanics of metaphyseal cone augmentation in revision knee replacement

Autor:	Jingrui Hu, Michael Gundry, Keke Zheng, Jingxiao Zhong, Patrick Hourigan, Judith R. Meakin, C Peter Winlove, Andrew D. Toms, Karen M. Knapp, Junning Chen
Rok vydání:	2022
Předmět:	Reoperation Biomaterials Knee Joint Tibia Mechanics of Materials Biomedical Engineering Humans Arthroplasty Replacement Knee Knee Prosthesis Prosthesis Design Biomechanical Phenomena
Zdroj:	Journal of the Mechanical Behavior of Biomedical Materials. 131:105233
ISSN:	1751-6161
Popis:	The demand for revision knee replacement (RKR) has increased dramatically with rising patient life expectancy and younger recipients for primary TKR. However, significant challenges to RKR arise from osseous defects, reduced bone quality, potential bone volume loss from implant removal and the need to achieve implant stability. This study utilizes the outcomes of an ongoing RKR clinical trial using porous metaphyseal cones 3D-printed of titanium, to investigate 1) bone mineral density (BMD) changes in three fixation zones (epiphysis, metaphysis, and diaphysis) over a year and 2) the biomechanical effects of the cones at 6 months post-surgery. It combines dual-energy x-ray absorptiometry (DXA), computed tomography (CT) with patient-specific based finite element (FE) modelling. Bone loss (-0.086 ± 0.05 g/cm
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae85a9d9e71e38a63d646ec52b85d7e4 https://doi.org/10.1016/j.jmbbm.2022.105233 Zobrazit plný text záznamu Full Text from ScienceDirect