Numerical simulation of strain-adaptive bone remodelling in the ankle joint

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dc.identifier.uri Bouguecha, Anas Weigel, Nelly Behrens, Bernd-Arno Stukenborg-Colsman, Christina Waizy, Hazibullah 2016-08-29T13:44:52Z 2016-08-29T13:44:52Z 2011-07-05
dc.identifier.citation Bouguecha, Anas; Weigel, Nelly; Behrens, Bernd-Arno; Stukenborg-Colsman, Christina; Waizy, Hazibullah: Numerical simulation of strain-adaptive bone remodelling in the ankle joint. In: Biomedical Engineering Online 10 (2011), 58. DOI:
dc.description.abstract Background: The use of artificial endoprostheses has become a routine procedure for knee and hip joints while ankle arthritis has traditionally been treated by means of arthrodesis. Due to its advantages, the implantation of endoprostheses is constantly increasing. While finite element analyses (FEA) of strain-adaptive bone remodelling have been carried out for the hip joint in previous studies, to our knowledge there are no investigations that have considered remodelling processes of the ankle joint. In order to evaluate and optimise new generation implants of the ankle joint, as well as to gain additional knowledge regarding the biomechanics, strain-adaptive bone remodelling has been calculated separately for the tibia and the talus after providing them with an implant. Methods: FE models of the bone-implant assembly for both the tibia and the talus have been developed. Bone characteristics such as the density distribution have been applied corresponding to CT scans. A force of 5,200 N, which corresponds to the compression force during normal walking of a person with a weight of 100 kg according to Stauffer et al., has been used in the simulation. The bone adaptation law, previously developed by our research team, has been used for the calculation of the remodelling processes. Results: A total bone mass loss of 2% in the tibia and 13% in the talus was calculated. The greater decline of density in the talus is due to its smaller size compared to the relatively large implant dimensions causing remodelling processes in the whole bone tissue. In the tibia, bone remodelling processes are only calculated in areas adjacent to the implant. Thus, a smaller bone mass loss than in the talus can be expected. There is a high agreement between the simulation results in the distal tibia and the literature regarding. Conclusions: In this study, strain-adaptive bone remodelling processes are simulated using the FE method. The results contribute to a better understanding of the biomechanical behaviour of the ankle joint and hence are useful for the optimisation of the implant geometry in the future. eng
dc.language.iso eng
dc.publisher London : Biomed Central Ltd
dc.relation.ispartofseries Biomedical Engineering Online 10 (2011)
dc.rights CC BY 2.0 Unported
dc.subject finite-element-analysis eng
dc.subject gait analysis eng
dc.subject stance phase eng
dc.subject arthroplasty eng
dc.subject replacement eng
dc.subject mechanics eng
dc.subject forces eng
dc.subject arthrodesis eng
dc.subject management eng
dc.subject prostheses eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Numerical simulation of strain-adaptive bone remodelling in the ankle joint eng
dc.type Article
dc.type Text
dc.relation.issn 1475-925X
dc.bibliographicCitation.volume 10
dc.bibliographicCitation.firstPage 58
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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