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Acta of Bioengineering and Biomechanics

Tytuł artykułu

Mock-up in hip arthroplasty pre-operative planning

Autorzy Zanetti, E. M.  Bignardi, C. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The correct estimation of stem boundary conditions in hip arthroplasty cannot be performed simply by subtracting the prosthesis volume from the bone volume: the stem implant path needs to be taken into account. Digital mock-up is a technique commonly applied in the automotive field which can be used for this aim. Given a certain femur, a stem, and an implantation path, the volume of the removed bone stock can be evaluated, as well as the final contact area between the bone and the stem, and, section by section, the residual cortical bone thickness. The technique proved to be useful: if the stem implant path is not considered, the removed bone stock volume can be underestimated up to 6%, while the contact area extension can be overestimated up to 28%. On the whole, a new methodology has been set up and tested, which can be usefully employed to accurately establish stem boundary conditions in the pre-operative planning stage, and in order to perform a reliable structural stress analysis. The methodology implemented here by experienced researchers can be made available to surgeons, setting up an apposite software suite.
Słowa kluczowe
PL kości   współpraca na powierzchni kość-implant   metoda elementów skończonych  
EN hip steam   primary stability   finite element method   bone-implant interface  
Wydawca Oficyna Wydawnicza Politechniki Wrocławskiej
Czasopismo Acta of Bioengineering and Biomechanics
Rocznik 2013
Tom Vol. 15, nr 3
Strony 123--128
Opis fizyczny Bibliogr. 18 poz., rys.
autor Zanetti, E. M.
  • University of Perugia, Dipartamento di Ingegneria Industriale, Via Duranti 93, 06125 Perugia, Italy
autor Bignardi, C.
  • Politecnico di Torino, Dipartimento di Ingegneria Meccanica e Aerospaziale, Corso Duca degli Abruzzi, 24, 101129 Torino. Italy,
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