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Strain Analysis in Cementless Hip Femoral Prosthesis using the Finite Element Method - Influence of the Variability of the Angular Positioning of the Implant

Degasperi, Felipe Alberto ; Scatigna, Bruno Francesco ; Falótico, Guilherme Guadagnini ; Romero, Valéria ; Basile, Ricardo ; Takata, Edmilson Takehiro

Revista brasileira de ortopedia, 2022-12, Vol.57 (6), p.968-974 [Periódico revisado por pares]

Germany: Thieme Revinter Publicações Ltda

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  • Título:
    Strain Analysis in Cementless Hip Femoral Prosthesis using the Finite Element Method - Influence of the Variability of the Angular Positioning of the Implant
  • Autor: Degasperi, Felipe Alberto ; Scatigna, Bruno Francesco ; Falótico, Guilherme Guadagnini ; Romero, Valéria ; Basile, Ricardo ; Takata, Edmilson Takehiro
  • Assuntos: Artigo Original ; ORTHOPEDICS
  • É parte de: Revista brasileira de ortopedia, 2022-12, Vol.57 (6), p.968-974
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The present study aims to evaluate the influence of different positioning of the hip femoral prosthesis on the stress and strain over this implant.  A femoral prosthesis (Taper - Víncula, Rio Claro, SP, Brazil) was submitted to a stress and strain analysis using the finite element method (FEM) according to the standard. The analysis proposed a branch of the physical test with a +/- 5° angle variation on the standard proposed for α and β variables.  The isolated +/- 5° variation on the α angle, as well as the association of +/- 5° variation on the α and β angles, presented significant statistical differences compared with the control strain (  = 0.027 and 0.021, respectively). Variation on angle β alone did not result in a significant change in the strain of the prosthesis (  = 0.128). The stem positioning with greatest implant strain was α = 5° and β = 14° (  = 0.032).  A variation on the positioning of the prosthetic femoral stem by +/- 5° in the coronal plane and/or the association of a +/- 5° angle in coronal and sagittal planes significantly influenced implant strain.
  • Editor: Germany: Thieme Revinter Publicações Ltda
  • Idioma: Inglês;Português
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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