Abstract
A posterior stabilized type of total knee replacement (TKR) device was used to assess the impact of material of tibial tray and varying posterior tibial slopes on the periprosthetic bone region. Tw...
Highlights
Total knee arthroplasty (TKA) is the most effective and successful intervention (Saleh, Santos, Ghomrawi, Parvizi, & Mulhall, 2006) for knee osteoarthritis, with various types of implant types used over the years with a good success rate
The strain responses in periprosthetic bone region due to tibial material and over the length of tibial tray keel was investigated under peak axial loads of walking and stair descending/ascending
The obtained strains generated in the bone vary from 280 to 460 micro strains for different Posterior tibial slope (PTS) considered
Summary
Total knee arthroplasty (TKA) is the most effective and successful intervention (Saleh, Santos, Ghomrawi, Parvizi, & Mulhall, 2006) for knee osteoarthritis, with various types of implant types used over the years with a good success rate. TKA reduces pain in the knee and assists in restoration of its mobility in an arthritic knee (Yassin et al, 2015). The essential goal of TKA is to reduce knee joint pain and maintain the range of motion to assist in the patients’ ability to perform daily activities. With advancements in modern day technology, success of TKA is evaluated based on knee kinematic scores and extended range of motion. Owing to premature implant failure due to poor results post-TKA, revision surgeries may be required. It has been widely reported in studies that more than 20% TKA failures were due to malposition and malalignment which can be evaded with careful surgical technique (Abdel et al, 2014). Loosening of components, often starting from the tibial surface is an critical mode of failure initiation (Song et al, 2017)
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