- Tytuł:
- A numerical comparative analysis of ChM and Fixion nails for diaphyseal femur fractures
- Autorzy:
-
Ivanov, D.
Barabash, Y.
Barabash, A. - Powiązania:
- https://bibliotekanauki.pl/articles/306299.pdf
- Data publikacji:
- 2016
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
FEM
gwóźdź śródszpikowy
kość udowa
sztywność
model 3D
finite element analysis
intramedullary nail
femur
effective stress
stiffness
3D model - Opis:
- Purpose: Today intramedullary locked nails are widespread in treatment of diaphyseal long bone fractures of the lower limb. However, such nails have a number of drawbacks: complexity and duration of the installation, high axial stiffness, as well as the failure of locking screws and nail body. Expandable nails such as Fixion have several advantages over lockable ones. They can be quickly installed without the need of reaming and provide sufficient stabilization of the fracture. However, many studies show their low stability under torsional loads. Methods: In this paper, geometric characteristics of Fixion nail were investigated. Bone-nail systems (with Fixion and locked nail) under the influence of three types of loads were numerically studied. Two types of diaphyseal femoral fractures (type A and B in accordance with AO/ASIF classification) were examined. Results: It was revealed that Fixion nail provides axial stiffness of 489 N/mm for the fractures studied. Expandable nail showed higher compression at fragments junction than locked nail. Torsional stability of Fixion nail was also high. Corrosion was found on inner surface of Fixion nail. Conclusions: Fixion nail showed high stability under influence of the three loads studied. Corrosion on the internal wall of the nail may indicate its relatively low resistance to saline.
- Źródło:
-
Acta of Bioengineering and Biomechanics; 2016, 18, 3; 73-81
1509-409X
2450-6303 - Pojawia się w:
- Acta of Bioengineering and Biomechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł