Investigation on the Influence of Hip Joint Loading in Peak Stress During Various Activities

Pandithevan, Ponnusamy; Prasannavenkadesan, Varatharajan

doi:10.1007/978-981-10-7898-9_20

Cited by 1 publication

(1 citation statement)

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“…Typically, static FEMs are conducted by loads with a magnitude proportional with the body weight [27]; however, the negative influence of weight can escalate when it is followed by a movement. In the other words, the prosthesis should be investigated under a specific condition, rather than just static loading of the body weight [28,29].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Porous Functionally Graded Femoral Prostheses with Improved Stress Shielding

Chashmi

Fathi

Shirzad

et al. 2020

Designs

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One of the most important problems of total hip replacement is aseptic loosening of the femoral component, which is related to the changes of the stress distribution pattern after implantation of the prosthesis. Stress shielding of the femur is recognized as a primary factor in aseptic loosening of hip replacements. Utilizing different materials is one of the ordinary solutions for that problem, but using functionally graded materials (FGMs) could be better than the conventional solutions. This research work aims at investigating different porous FGM implants and a real femoral bone by a 3D finite element method. The results show that a neutral functionally graded prosthesis cannot extraordinarily make changes in the stress pattern of bone and prosthesis, but an increasing functionally graded prosthesis leads a lower level of stress in the prosthesis, and a decreasing functionally graded prosthesis can properly reduce the stress shielding among these three architectures. Due to the absence of similar results in the specialized literature, this paper is likely to fill a gap in the state-of-the-art bio-implants, and provide pertinent results that are instrumental in the design of porous femoral prostheses under normal walking loading conditions.

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Section: Introductionmentioning

confidence: 99%