International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 08 | Aug 2023
p-ISSN: 2395-0072
www.irjet.net
Design And Analysis of Different Artificial Human Hip Stems Based on Fenestrations Using PEEK Material Mr. Rohith. N1, Dr. H. C. Chittappa2 1M. Tech Student, Department of Mechanical Engineering,
University Visvesvaraya College of Engineering, Bangalore, Karnataka, India. 2Professor, Department of Mechanical Engineering, University Visvesvaraya College of Engineering, Bangalore, Karnataka, India. ---------------------------------------------------------------------***--------------------------------------------------------------------of materials, and the intactness of bio-implants to fix, Abstract - The Hip joint is a primary joint which provides sustain, recreate, either to improve the function of the human tissues.
stability to the human body. These joints will be replaced by the implants during hip replacement procedures due to wear and strain brought on by ageing and other factors. Hip joint prostheses are structural parts that still struggle with complex issues including the interaction of the hip stem's physical and biological characteristics with the human femur bone. On the commercial market, there are numerous varieties of artificial hip joints. The needs of the patients can be accommodated by choosing from a variety of materials and designs. One of them is the hip stem design with fenestrations. Titanium and stainless steel are the materials that are frequently utilised in hip joint replacement. The design and analysis of complete joint replacements and other orthopaedic devices have benefited from the use of the finite element approach in orthopaedic biomechanics.
1.1 Total Hip Replacement Hip joint replacement using artificial replacement surgery needs to be performed for patients with permanent hip joint damage due to, aging, necrosis, osteoarthritis, osteoporosis or accidents. Many patients with hip joint disease have difficulties carrying out for daily activities; thus, hip replacement surgery has become a standard method. THR is called as “Operation of Century” because it has revolutionised the treatment of a patient with advanced hip disorders. THR involves exchange of the morbid hip with a hip implant referred to as prosthesis, that is employed to transferring the load from socket to the leg bone by implanting a hip stem into the latter. Ideally, the stem area of a hip implant thought to be fully contact with the surrounding femure cortical bone to attain stable fixation during a THR. The hip implant is additionally responsible for getting the physiological load from the hip stem and transfers some amount of it to the surrounding tissues. These are the major surgical procedures, that are solely undertaken once the disease has proceeded to the stage where no different treatment is possible the aim is to alleviate pain and improve mobility [1].
In this work, three different types of hip stems were considered viz., hip stem with out fenestration, hip stem with bigloop fenestration and hip stem with slot fenestration were modeled using SOLIDWORKS 2018 by Dassault Systems and these hip stems were analyzed for the stress– strain distribution and deformation over the hip stem prosthesis under different loading conditions like, standing, walking, jumping and running for this we used two different materials Polyether-ether-ketone (PEEK) and Ti-6Al-4V using renowned tool ANSYS Workbench 2022 R2 version to produce the hip stem with the best design and material available. Key Words: Finite Element Method, Biomaterials, Hip implant, Artificial hip joint, PEEK.
1. INTRODUCTION A biomaterial is a material that have been produced to interact with living systems for therapaeutic (treating, improving, fixing, or changing a tissue function of the body) either diagnostic purpose. Bio-materials has been a field of study for nearly 50 years. Bio-implants, which include porous bone implants, dental implants, prostheses, wearable biosensors, and drug delivery devices, are all implants used in medical or clinical therapy. Typically, they are placed within the body of a person for more than 30 days. They integrate with the human body, the qualities
© 2023, IRJET
|
Impact Factor value: 8.226
Fig. 1 Steps of Total Hip Replacement surgery
|
ISO 9001:2008 Certified Journal
|
Page 276