A framework to assess mechanics of stump–socket interaction in transfemoral amputees

Abstract

This paper presents the development of a new framework for stump–socket interface force estimation for future prosthesis optimization in transfemoral amputees. It combines experimental data and modelling, including gait analysis, subject-specific simulation of gait and finite element modelling of the residual limb at the prosthesis interaction point. These case-study preliminary results demonstrate how reaction forces between the residual limb and prosthesis can be estimated and used as input data for detailed finite element analysis based on medical images. Gait simulation may provide useful insight in subject-specific musculoskeletal modelling while finite element simulation may provide in-silico feedback for prosthesis optimization with respect to various daily activities.