Back to Search
Start Over
Stiffness analysis of tibia-implant system under cyclic loading
- Source :
-
Materials Science & Engineering: C . Dec2008, Vol. 28 Issue 8, p1203-1208. 6p. - Publication Year :
- 2008
-
Abstract
- Abstract: A testing method has been developed to characterize stiffness and permanent deformation of bone-implant systems. The system consists of an artificial tibia with simulated distal fracture stabilized by an unreamed intramedullary nail. This system was loaded with three different sequences at 2 Hz, each consisting of 40,000 sinusoidal cycles, simulating clinical relevant loading conditions. Evaluation of the results showed a stiffness of 2782 N/mm with a standard deviation of 311 N/mm and a permanent deformation of 0.64 mm with a standard deviation of 0.21 mm. The locking screws broke exclusively during the third loading sequence starting with the most proximal of the distal screws. The study provides a standard technique for biomechanical testing and a comparison of different bone/implant-systems avoiding the variability of cadaver bone tests. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09284931
- Volume :
- 28
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: C
- Publication Type :
- Academic Journal
- Accession number :
- 35326805
- Full Text :
- https://doi.org/10.1016/j.msec.2008.09.022