[Measurement of the elastic properties of the cancellous bone in the femoral head of the dog].
The degenerative wear and pathologic damage of the joints are reasons for total endoprotheses in man as well as in dogs. The main problem is the aseptic loosening of the protheses. By usig the finite-element-method, the total endoprothesis is designed with new features, with the purpose of preventing loosening and being better adapted to load transmission. In order to simulate the femur of the dog for the numerical analysis, a material law is developed. By taking into account the anisotropy and the local density of the cancellous bone in the femoral head, the young's modules are experimentally determined. The measurements are performed by ultrasonic methods on femoral heads of euthanised dogs. The results show planar isotropic cancellous bone.
Behrens
Bernd-Arno
BA
Institut für Umformtechnik und Umformmaschinen, Universität Hannover, Hannover.
Nolte
Ingo
I
Bouguecha
Anas
A
Kammler
Matthias
M
Halbritter
Ute
U
Besdo
Silke
S
Meyer-Lindenberg
Andrea
A
D000818:Animals; D016880:Anisotropy; D015519:Bone Density; D004285:Dogs / Q000033:anatomy & histology* / Q000502:physiology; D004548:Elasticity; D005270:Femur Head / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000473:pathology / Q000502:physiology; D020342:Finite Element Analysis; D013314:Stress, Mechanical; D013718:Tensile Strength; D014463:Ultrasonography