Verification of the Primary Stability of Bone-Implant Non Manifold Assembly (Prosthetic Joint) using Hertzian Contact Mechanics Model
Journal Title: Scholars Journal of Engineering and Technology - Year 2016, Vol 4, Issue 8
Abstract
The problem with hip replacement technology is a challenging one and no addition to that effort is a wasted venture. The aim of this work considering stainless steel SS316L as the implant material was to investigate theoretically, the interaction at the interface between the two materials in contact (Bone and SS316L) using Hertzian Contact Mechanics Model to ascertain the primary stability of the virtual Prosthetic joint.. Hertzian Contact mechanics was applied for the determination of micromotion at the bone-implant interface, the maximum and the minimum values of micromotion obtained were dmin=73µm and dmax=102µm and when these values were compared with the range of values obtained from literatures, they fell into the range of the recommended values required for good osseointegration. With these values, osseointegration (bone growth) is enhanced, aseptic loosening will not occur and primary stability is ascertained. It also indicates that the prosthesis will not fail within the suggested body weights. The result obtained shows that the assembly has a good initial stability the implant was optimally located and the virtual surgical operation carried out in this work was successful.
Authors and Affiliations
Gabriel Oladeji Bolarinwa, Sam Omenyi, Ugochukwu Okonkwo
Keywords
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