Estimation of stabilization of femoral shaft fractures by paraosteal plate using finite element method
Journal Title: Engineering of Biomaterials / Inżynieria Biomateriałów - Year 2015, Vol 18, Issue 130
Abstract
Long bone fractures can be treated in several ways. One of them is using the paraosteal plate. The plate mounted to a bone enables the therapy process, but it can also be a source of extra stresses in the mounting regions. Values of stresses depend on the plates’ and screws’ dimensions, number of screws, the mounting place and external loads acting on the bone. The aim of this paper was to determine displacements of long bone stabilized by the paraosteal implant, especially in the fracture area. Due to applied method of analysis, the stresses value occurring in the bone were also estimated. Based on radiological images of thirty patients, an analysis of transverse and oblique fractures burthen was performed. The biomechanical fracture stabilization by even temporary stabilization with at least six screws was confirmed. Increasing the number of screws affects profitably the stabilization, especially in the case of oblique fractures. Number of screws is limited by possibility of damage of bone’s structure. The simulation was performed using a finite element method and application of the Ansys computer package. In order to simplify the analysis and to test the possibility of reduced attempt application, the plane model was applied. Possibility of application of such a model in simplified analyses is explained by the fact that usually the screws mounting plate to a bone are situated along one line parallel to the line of the bone axis. Results of the analysis show, that the plane model seems to be good enough to preoperative estimation of the way of fracture stabilization due to short time required to creation of the model.
Authors and Affiliations
M. S. Kozień, J. Lorkowski, I. Górka, M. Kornaga, O. Grzegorowska, A. Kotela
Keywords
Related Articles
- EP ID EP559994
- DOI -
- Views 47
- Downloads 0
Liposomes as carriers for the delivery of active substances to the skin
Since ancient times cosmetics and dermatological medicines have been applied to the skin. Presently growing interest in topical administration in order to achieve therapeutic or good cosmetic effects can be noticed. Effe...
Wpływ dodatku kwasów karboksylowych na czas wiązania i wytrzymałość na ściskanie cementów szkło-jonomerowych
Cementy szkło-jonomerowe powstają w czasie utwardzania kompozycji złożonych z dwóch składników: szklanego proszku i płynu wiążącego będącego wodnym roztworem polikwasów alkenowych. Wiązanie cementu polega na reakcji kwas...
Biodegradable cement type bone implant materials based on calcium phosphates and calcium sulphate
Calcium phosphates (CaPs) are widely used in hard tissue replacement because of their excellent biocompatibility. Calcium phosphate cements (CPCs) are an interesting alternative for sintered calcium phosphate ceramics du...
Tribological properties of resorbable polylactide-based biomaterials
The objective of this study was the observation and evaluation of tribological characteristics and behavior of biocomposites with polymer matrix under different friction conditions. Three types of polylactide composites...
Blends of poly(L-lactide) and poly(L-lactide-co-trimethylene carbonate) as promising materials for bone and cartilage tissue engineering
The aim of this work was to evaluate the properties of polymer blends of poly(L-lactide) and poly(L-lactide- -co-trimethylene carbonate) 15/85 and to select two compositions to be used to prepare the materials for bone a...