Open AccessVirtual and experimental device for hip revision prostheses testing
Author(s) -
Dinel Popa,
Daniel Cosmin Călin,
Gabriel Buciu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/997/1/012086
Subject(s) - prosthesis , orthopedic surgery , pelvis , joint (building) , osteoarthritis , orthodontics , computer science , biomedical engineering , medicine , surgery , engineering , structural engineering , alternative medicine , pathology
Coxofemoral osteoarthritis is a common pathology, especially for the elderly or for certain social categories. One solution to this medical problem is the hip joint prosthesis. This, however, over time, can lead to joint damage, and obviously a revision of the prosthesis is required. The revision hip prosthesis presents additional mechanical elements and obviously different surgical techniques are required compared to the normal hip prosthesis. There are several methods of prosthesis and obviously more surgical techniques. We were interested to identify that revision method that retains as much bone material, and which has the same mechanical strength. A special device designed to test the revision hip prosthesis was designed and made using a cow's pelvis as bone material. The orthopedic assembly is attached to the device and supposed to a progressive loading until it mechanically fails. The orthopedic system was analyzed with a microscope where the cracks that determined the mechanical failure of the orthopedic system were detected and measured. In parallel, the same device is loaded into a virtual test environment and subjected to a similar load. The actual results and those obtained in the virtual environment were compared and analyzed. Finally, interesting conclusions were drawn.