Comparison of mechanical properties of human, bovine bone and a new processed bone xenograft.
The study compared the mechanical properties of human bone, fresh bovine bone and a new highly purified bone xenograft: T650 (Lubboc-Laddec). Destructive, compressive tests were performed to determine Young's modulus and ultimate strength, with a constant deformation rate of 0.025 mm min-1. The stress-strain curves obtained from all the non-human specimens especially the T650, did not differ significantly from those observed with human bone. Human and fresh bovine samples presented a significantly different Young's modulus. The T650 samples, depending upon their trabecular texture (dense or medium) also differed significantly from each other (132.9 +/- 52.3 versus 80.0 +/- 37.3 MPa, P < 0.05). Their moduli were similar to those of bovine and human cancellous bone, respectively (117.49 +/- 61.53 versus 77.36 +/- 54.96. P < 0.05). The ultimate strength of T650 dense (9.6 +/- 3.7 MPa) was similar to bovine (8.5 +/- 4.2 MPa) and human bone (8.78 +/- 5.2 MPa): the T650 medium (5.9 +/- 2.8 MPa) was significantly different from the other specimens.
Poumarat
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Biomechanics and Instrumentation Laboratory, Blaise Pascal University, Clermont-Ferrand, France.
Squire
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D000368:Aged; D000818:Animals; D001672:Biocompatible Materials / Q000627:therapeutic use*; D001696:Biomechanical Phenomena; D016025:Bone Transplantation; D001842:Bone and Bones / Q000502:physiology*; D002417:Cattle; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013314:Stress, Mechanical; D014183:Transplantation, Heterologous
D001672:Biocompatible Materials; C093901:Lubboc