Comparative study by the finite element method of three activities of a wearer of total hip prosthesis during the postoperative period

Abstract

The post-operative period for a carrier of total hip prosthesis (THP), especially in the first months, remains the most difficult period for a patient after each operation, even if traumatologist surgeons want the relief and success of their operations. In this investigation, selected three of the daily activities for a wearer of total hip replacement (THR), such as, sitting in a chair, lifting a chair and going down stairs, and was performed a numerical simulation by finite elements in based on experimental data by Bergmann (Bergmann 2001) in terms of effort for each activity. Different stresses have been extracted, as well as a detailed comparison between two activities with different induced stresses such as normal, tensile and compressive shear stresses.