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Open AccessArticle

Simulated Performance of a Xenohybrid Bone Graft (SmartBone®) in the Treatment of Acetabular Prosthetic Reconstruction

1
Industrie Biomediche Insubri SA, 6805 Mezzovico-Vira, Switzerland
2
Politecnico di Milano, Laboratory of Biological Structure Mechanics, Department of Chemistry, Materials and Chemical Engineering “G. Natta”, 20133 Milan, Italy
3
Department of Surgical Sciences and Integrated Diagnostics, University of Genova, Largo R. Benzi 10, 16132 Genova, Italy
4
IRCCS Ospedale Policlinico San Martino, Largo R. Benzi 10, 16132 Genova, Italy
5
Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
*
Author to whom correspondence should be addressed.
J. Funct. Biomater. 2019, 10(4), 53; https://doi.org/10.3390/jfb10040053
Received: 28 September 2019 / Revised: 15 November 2019 / Accepted: 20 November 2019 / Published: 22 November 2019
(This article belongs to the Special Issue Application of Biomechanical Model on Tissue Engineering)
Total hip arthroplasty (THA) is a surgical procedure for the replacement of hip joints with artificial prostheses. Several approaches are currently employed in the treatment of this kind of defect. Overall, the most common method involves using a quite invasive metallic support (a Burch–Schneider ring). Moreover, valid alternatives and less invasive techniques still need to be supported by novel material development. In this work, we evaluated the performance of SmartBone®, a xenohybrid bone graft composed of a bovine bone matrix reinforced with biodegradable polymers and collagen, as an effective support in acetabular prosthesis reconstruction. Specifically, the material’s mechanical properties were experimentally determined (E = ~1.25 GPa, Ef = ~0.34 GPa, and Et = ~0.49 GPa) and used for simulation of the hip joint system with a SmartBone® insert. Moreover, a comparison with a similar case treated with a Burch–Schneider ring was also conducted. It was found that it is possible to perform THA revision surgeries without the insertion of an invasive metal support and it can be nicely combined with SmartBone®’s osteointegration characteristics. The material can withstand the loads independently (σmax = ~12 MPa) or be supported by a thinner titanium plate in contact with the bone in the worst cases. This way, improved bone regeneration can be achieved. View Full-Text
Keywords: total hip arthroplasty; bone substitute; computational model; 3D reconstruction total hip arthroplasty; bone substitute; computational model; 3D reconstruction
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MDPI and ACS Style

Grottoli, C.F.; Cingolani, A.; Zambon, F.; Ferracini, R.; Villa, T.; Perale, G. Simulated Performance of a Xenohybrid Bone Graft (SmartBone®) in the Treatment of Acetabular Prosthetic Reconstruction. J. Funct. Biomater. 2019, 10, 53.

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