Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Publicaciones del Grupo Español de Fractura

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Mechanical characterization of a bone repair system using anisotropic and isotropic collagen sponges containing BMP2

Ion Andreu  Maria Flandes Iparraguirre  Kai Stuckensen  José María Lamo de Espinosa Vazquez de Sola  Emma Muiños López  Joaquim Nickel  Reyes Elizalde González  Felipe Prósper Cardoso

Anales de la Mecánica de la Fractura, nº 33 . 2016 . Pág. 220 -224
Ver (.pdf): Anales33-034

Resumen: Biomechanical testing has been described as the gold standard to quantify bone reparation. The mechanics of the repaired bones are affected by the mechanical properties of the materials, as well as by the geometry of the reparation. In fact, to derive accurate tissue properties from biomechanical tests it is key to consider actual geometry [1]. In this work, a novel combination of techniques is used in order to assess functional improvement of the repaired bone. First, torsion tests were carried out to quantify the macroscopic bone performance. Then, we have measured the local stiffness of the reparation using nanoindentation. Finally, we have simulated by FEA the torsion tests using the geometry obtained from ?CT and the local stiffness measured from nanoindentation. The fracture stress of the reparation is then calculated from the maximum principal stresses corresponding to the maximum torque measured during the torsion test.

LocalizaciónSan Sebastián

Tecnun (University of Navarra) Manuel de Lardizábal 13, 20018 San Sebastián, Spain
Tecnun (University of Navarra) Manuel de Lardizábal 13, 20018 San Sebastián, Spain
Department of Functional Materials in Medicine and Dentistry, University of Würzburg
Orthopaedic Surgery and Traumatology Department, Clínica Universidad de Navarra
Cell Therapy Area, Clínica Universidad de Navarra
Department of Physiological Chemistry, University of Würzburg
CEIT Manuel de Lardizábal, San Sebastián
Cell Therapy Area, Hematology Department, Clínica Universidad de Navarra

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