TY - JOUR
T1 - Biomechanical evaluation of pin placement of external fixator in treating tranverse tibia fracture
T2 - Analysis on first and second cortex of cortical bone
AU - Zainudin, Nur Amalina
AU - Ramlee, Muhammad Hanif
AU - Latip, Hadafi Fitri Mohd
AU - Azaman, Aizreena
AU - Seng, Gan Hong
AU - Garcia-Nieto, Evelyn
AU - Kadir, Mohammed Rafiq Abdul
N1 - Publisher Copyright:
© 2019 Penerbit UTM Press.
PY - 2019/1
Y1 - 2019/1
N2 - Biomechanical perspective of external fixator is one of the greatest factor to consider in successfully treating bone fracture. This is due to the fact that mechanical behavior of the structure can be analyzed and optimized in order to avoid mechanical failure, increase bone fracture healing rate and prevent pre-term screw loosening. There are three significant factors that affect the stability of external fixator which are the placement of pin at the bone, configuration and components of external fixator. These factors lead to one question: what is the optimum pin placement in which exerts optimum stability? To date, literature on above mentioned factors is limited. Therefore, we conducted a study to evaluate the uniplanar-unilateral external fixator for two different pin placement techniques in treating transverse tibia fracture via finite element method. The study was started off with the development of transverse tibia fracture using Mimics software. Computed tomography (CT) data image was utilized to develop three dimensional tibia bone followed by crafting fracture on the bone. Meanwhile, the external fixator was developed using SolidWork software. Both tibia bone and external fixator were meshed in 3-matic software with triangular mesh element. Simulation of this configuration was took place in a finite element software, Marc.Mentat software. A load of 400 N was applied to the proximal tibia bone in order to simulate stance phase of a gait cycle. From the findings, the pin placement at the second cortex of bone provided optimum stability in terms of stress distribution and displacement, which should be considered for better treatment for transverse tibia fracture. On the other hand, the pin placement at first cortex should be avoided to prevent many complications.
AB - Biomechanical perspective of external fixator is one of the greatest factor to consider in successfully treating bone fracture. This is due to the fact that mechanical behavior of the structure can be analyzed and optimized in order to avoid mechanical failure, increase bone fracture healing rate and prevent pre-term screw loosening. There are three significant factors that affect the stability of external fixator which are the placement of pin at the bone, configuration and components of external fixator. These factors lead to one question: what is the optimum pin placement in which exerts optimum stability? To date, literature on above mentioned factors is limited. Therefore, we conducted a study to evaluate the uniplanar-unilateral external fixator for two different pin placement techniques in treating transverse tibia fracture via finite element method. The study was started off with the development of transverse tibia fracture using Mimics software. Computed tomography (CT) data image was utilized to develop three dimensional tibia bone followed by crafting fracture on the bone. Meanwhile, the external fixator was developed using SolidWork software. Both tibia bone and external fixator were meshed in 3-matic software with triangular mesh element. Simulation of this configuration was took place in a finite element software, Marc.Mentat software. A load of 400 N was applied to the proximal tibia bone in order to simulate stance phase of a gait cycle. From the findings, the pin placement at the second cortex of bone provided optimum stability in terms of stress distribution and displacement, which should be considered for better treatment for transverse tibia fracture. On the other hand, the pin placement at first cortex should be avoided to prevent many complications.
KW - Finite element analysis
KW - external fixator
KW - pin placement
KW - stability
KW - transverse tibia fracture
UR - http://www.scopus.com/inward/record.url?scp=85089291388&partnerID=8YFLogxK
U2 - 10.11113/mjfas.v15n2019.1263
DO - 10.11113/mjfas.v15n2019.1263
M3 - Article
AN - SCOPUS:85089291388
SN - 2289-599X
VL - 15
SP - 75
EP - 79
JO - Malaysian Journal of Fundamental and Applied Sciences
JF - Malaysian Journal of Fundamental and Applied Sciences
IS - 1
ER -