| Autor: |
Mark Lenz, Boyko Gueorguiev, Juan B. Gerstner Garces, Michael P. Swords, Stefan Rammelt, Gunther O. Hofmann, Ivan Zderic, Manuela Ernst, Robert Geoff Richards, Andrew K. Sands |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Journal of Orthopaedic Translation, Vol 14, Iss , Pp 67-73 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2214-031X |
| DOI: |
10.1016/j.jot.2018.06.001 |
| Popis: |
Objectives: The varying mechanical properties of human bone have influence on the study results. Pullout and shear forces of human bone were compared to different substitutes to evaluate their suitability for biomechanical studies. Methods: After bone mineral density (BMD) determination, axial pullout tests were performed with cortical 3.5 mm nonlocking (NL) and 2.7 mm head locking (HL) screws on human, porcine and polyurethane composite bones. Porcine and human constructs were additionally loaded in shear direction. Results: Apparent BMD was significantly lower in osteoporotic (159 mgHA/ccm ± 56) and nonosteoporotic (229 mgHA/ccm ± 25) human bone than that in porcine bone (325 mgHA/ccm ± 42; p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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