INTRODUCTIONThe knee joint is a complex structure of the human body that experiences critical loading simultaneously while performing different physical activities such as walking, running, rotational movements , sitting position, static positions, etc. in our everyday lives. The main parts of the knee joint are the femur, tibia, patella and meniscus. It has two joint components, one between the tibia and femur and the other between the femur and patella. The knee joint is a pivoting hinge joint. It allows the extension and flexion of the leg with this rotation both in the internal and external part. Its articular bodies are lateral and medial condyles where the patella is present in the posterior region between the surfaces of the lateral and medial condyle. The joint capsule of the knee joints is made up of the fibrous membrane and the synovial membranes. Synovial membranes are those that are attached near the cartilage of the tibia and femur. Cartilage is a thin, elastic tissue that acts as a protector for bones and makes up the joint surfaces. In the knee joint, there are two types of cartilage, one being fibrous cartilage and the other being hyaline cartilage. Fibrous cartilage is resistant to high pressure and has high tensile strength. A meniscus is the articular disc present in the knee joint, having two components, namely the medial and lateral meniscus. Knee prosthesis: In the field of medicine, prosthesis is defined as an artificial device which is replaced in the position of any defective body part or when a body part has disappeared due to trauma, an illness or any other congenital disease. Two types of prostheses are mainly used, namely the craniofacial prosthesis and the somato (body) prosthesis. The craniofacial prosthesis is of two types namely the extra oral prosthesis and the intra prosthesis or as if...... middle of paper ......ular Metal. It contains pores whose size makes this material very suitable for bone growth. Additionally, Trabecular Metal has an elastic nature which facilitates bone remodeling.6. Polyethylene: The tibial and patellar components of knee replacements are made of polyethylene. Wear is less of an issue with knee implants because the bearing surfaces are flatter and do not result in the same type of wear. Using Ultra Highly Cross-Linked Polyethylene (UHXLPE) or Ultra High Molecular Weight Polyethylene (UHMWPE) reduces even minimal wear, allowing knee implants to last much longer. Material density Elastic modulusCobalt-chrome alloy ~ 8.5 g.cm^ -3 7-30316L Stainless steel 8.0 g.cm^-3 230CP Titanium 4.51 g.cm^-3 200Ti6Al4V 4.40 g.cm ^-3 106Materials and method1. Tools used: • CAD software • PRO/E modeling • ANSYS (2008,2010,2012)•