Study of Making Implant Plate and Screen of Femur Bone Internal Fictation from Hydroxyapatit Bovine and Polymer Biodegradation Material Using 3D Printers on Mechanical Strength

Abstract

Traffic accidents in Central Java contribute to fractures or fractures of 1,770 people. Broken bones that often occur in the femur or thigh bone. Recovery of fractured femur or fracture using internal plate and screw fixation. Metal implants and screws have deficiencies in implant migration, discomfort, pain, allergies, and large costs. From this deficiency, biodegradation polymer materials are now being developed. Strength without taking after bone healing, reducing operating costs, traumatic patients, comfortable, and painless, but has a lack of low mechanical strength and lack of precision. From the background above, research is focused on making high precision implant plates and screws from CT-Scan image data of patients using 3D printing machines in femoral bone applications. The research method uses screw extrusion method for making 3D printer filaments to make plate and screw internal fixation implants. Materials used by PLLA, PLC, HA bovine and PLA by testing mechanical properties. The results for the composition of the filament biodegradation mixture for the most optimal filament are F1 code test specimens with a percentage of synthetic polymer content and Ha Bovine 80:20. The best density and porosity are owned by the test specimen F1 / 300N code. The density of 0.365 g/cm3 with 2.750% porosity makes the buckling strength better and the maternal degradation is longer. Melting temperature (Tm) that corresponds to a 3D printer machine is theF3 test specimen code at 305°C melting temperature. So that this test specimen supports 3D printer machines.