Title
Effect of Micro-Separations and Cup Inclination Angles influencing Contact Mechanics of PCD-PCD for Hip Resurfacing using Elevated Acetubular Cup Rim Design for Various Gait Loads
Authors
R. Nithyaprakash, V Naveen, S Sabareesh Kumar, S Sakthi Mahendran, K Kirupa Maruthu, J. Jamari
Abstract
The femur head and acetabular cup are modeled using finite element (FE) method of a hip implant to analyse the contact mechanics and failure of implants. The model is subjected to various gait activities such as carrying load, climbing ladder etc., consisting of up to 19 gait loads for the poly crystalline diamond (PCD) material. The main aim of this study is to analyse how the contact pressure, and first Principal stress affect the contact mechanism in the hip resurfacing for each gait activity for different micro-separation’s such as 0, 0.5, 1, 1.5, 2, and 2.5 mm and for various cup inclination angles such as 35°, 45°, and 55°. The results revealed that PCD had better reduction in contact pressure for 75° inclination angle when compared with other cup inclination angles.
Keywords
PCD; Hip resurfacing; Microseparation; Inclination Angle; FEA; Gait load
Full Text
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