Biomechanical evaluation of reality-based navigation in total-hip arthroplasty

Instead surgeons are increasingly targeting a patient-specific joint reconstruction in which patient-specific anatomy informs both surgical technique and joint reconstruction.<br><br>The first technical section of this work addresses limitations identified in computer geometry and machine vision tools, namely point correspondence and statistical shape modelling workflows, which facilitate study of patient-specific morphology.

This work produced a set of tools that improved generalisation of correspondence algorithms across geometries, whilst minimising the need for specialised user knowledge, via full automated adaptive workflows. This has the potential to democratise useful, but currently specialised, tools.<br><br>The second technical section of this work takes these developed tools and applies them to patient-specific hip arthroplasty. Firstly, projection error in pre-operative radiographs is addressed with a tool developed to correct erroneous femoral offset measurements and the impact of projection error on the appearance of the internal femoral geometry evaluated.