A new method for estimating three-dimensional movement of the patella using a surface mapping method and computed tomography.

ABSTRACT:

Introduction

A previous study reported a method called the 2D-3D registration technique to examine three-dimensional movement of the patella. However, that method requires a biplane fluoroscopy system. In the present study, the aim was to establish a new method (CT-based surface mapping method) to estimate three-dimensional positions and angles of the patella with a motion capture system and CT.

Methods

In Study 1, the most appropriate parameters for the CT-based surface mapping method (i.e., target edge length, threshold of thickness of the soft tissue, and minimum distance between markers) were explored and determined. In Study 2, three-dimensional movement (i.e., positions and angles) of the patella using the CT-based surface mapping method and the most appropriate parame

SUBMITTER: Inai T 

PROVIDER: S-EPMC7452489 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature