Car accidents often occur and normally affected the car driver’s foot and ankle. If it is involved surgery for the ankle treatment, the recovery process normally takes a long time. As a normal practice, ankle foot orthosis (AFO ) will be worn by an ankle injury patient for shorten the recovery process and also to protect the foot from the pressure of the pedal car while driving especially during the event of such a sudden stop. However, the detail investigation of the suitability of AFO in absorbing or stand the pressure from pedal car during emergency stop is still lacking. Thus, the aim of this study is to investigate the suitability of the current AFO in absorbing or stand the pressure from pedal car during emergency stop and then propose the optimum one. The study was carried out by measuring the foot anthropometric of volunteer which it is to be used in designing the proposed AFO using SolidWorks software. There are three designs were constructed and analyzed to determine the op.....

553 hits

Pedicle screw is made from titanium alloy which gives support in the treatment of specific condition like lumbar, acute and chronic instabilities or deformities of thoracic, sacral spine. Mostly, the screw comes with rods act as connector, nuts, sleeves and plates. As a system, it increases the rigidity and holds the bone in placed while the bone heals itself over time. Over the years, many researchers have studied the pullout strength and the bending strength of pedicle screw. They found out that factors like core design, thread design, geometry and insertion techniques influenced the strength in pullout and bending. Failure of a screw is unavoidable. Sometime breakage happened at the neck or at the radial hole of pedicle screw due to high local stress. Thus, this project focused on the finding the most optimize diameter and position of radial in cylindrical screw to increase its bending strength. The pedicle screw inserted 40�mm into cylindrical block as a replacement for real huma.....

485 hits