A method for estimating the contact area of a dual-mobility total hip prosthesis
Taufiq Hidayat,
Muhammad Imam Ammarullah,
Eko Saputra,
M. Danny Pratama Lamura,
Chethan K N,
Rifky Ismail,
Athanasius Priharyoto Bayuseno,
J. Jamari
Affiliations
Taufiq Hidayat
Department of Mechanical Engineering, Faculty of Engineering, Universitas Muria Kudus, Kudus 59324, West Java, Indonesia
Muhammad Imam Ammarullah
Department of Mechanics and Aerospace Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
Eko Saputra
Department of Mechanical Engineering, Politeknik Negeri Semarang, Semarang 50275, Central Java, Indonesia
M. Danny Pratama Lamura
Department of Mechanical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang 50275, Central Java, Indonesia
Chethan K N
Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
Rifky Ismail
Department of Mechanical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang 50275, Central Java, Indonesia
Athanasius Priharyoto Bayuseno
Department of Mechanical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang 50275, Central Java, Indonesia
J. Jamari
Department of Mechanical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang 50275, Central Java, Indonesia
The term “contact area” refers to the total surface area of two entities in direct physical touch. When discussing an artificial hip joint, “contact area” refers to the surface area of contact between the components of the artificial hip joint (ball and cup) positioned inside the patient. Several methods can be used to figure out the contact area of an artificial hip joint, such as finite element analysis and traditional experiments on contact mechanics with hip joint simulators. The contact area in an artificial hip joint ensures load distribution. For optimal and long-term performance, the prosthetic hip joint’s contact area must be well understood for design, fitting, and monitoring. This study presented a novel method to estimate the liner surface contact area due to interaction contact in the artificial hip joint using a computer-aided design (CAD) program. This study also contrasted numerical approaches utilizing computer-aided engineering software and theoretical predictions based on Hertz theory with three-dimensional processes using CAD software to determine the contact area in the inner liner. There were no significant discrepancies in the outcomes of the three approaches.
