Design and analysis of femoral locking plate under different loading conditions using suitable material

Abstract

Abstract Femur bone is both strongest and longest bone in human body. This bone is contained linear elastic, isotropic and homogeneous material of calcium phosphate. It supports maximum weight of the body in between hip and knee joint during static loading condition. Femoral shaft fractures are common in both the young and elder people in India due to high accident rate and osteoporosis respectively. This major problem can be indirectly reduced by using locking compression plates which is most preferable now. The locking plate possess several advantages in fracture fixation, combining angular stability through use of locking screws with misalignment correction and fracture reduction into the plate through use of suitable screws. The mechanical analysis of different material which are suitable for femoral locking plate need to be workout, Because uniformity of stress transfer to the bone along with femoral locking plate is also important. As expected, stresses can be found at screw holes, nearest to the fracture site. This design modification can reduce the clearance of screw which results in permanent stability of femoral locking plate and the use of this different material will help us to find suitable biomaterial for femoral locking plate. Novelty of this research work is that the proposed design modification will substantially increase the fatigue life of the fixator, especially at screw holes nearest to the fracture region, where most fatigue fractures are known to occur and will consequently be function of greater fracture load