A New Software Tool For Fast And Repeatable
Joint Biomechanic Analysis
Author(s)
S. Martelli, N. Lopomo & E. Ferretti
Abstract
This paper describes a method for a computerized analysis of diarthroid joints.
The software implements reliable functions to study the shapes of the articulating
surfaces through 2D arbitrary sections and geometrical fitting of lines/conics to
quantify ligament behaviour through the computation of elongation, strain and
orientation during the recorded motion. The software also allows for the
computation of the most classical kinematic parameters, such as helical axes,
instantaneous rotations and displacements, centers of rotation or pivot points of
motion. In addition, new functional–anatomical features, such as distance maps,
contact areas tracking, and tools to validate functional hypothesis on the joint
mechanism are possible in an interactive environment which display the 3D
behaviour of the acquired or selected joint structure. An easy interface also
allows non-expert users to analyse the joint biomechanics and a test-demo is
available freeware at http://www.studyjoint.org. This approach represents a
generalization of the analysis of several cadaveric joints, and its preliminary
versions were used for kinematic and anatomical investigations about normal
and pathological knees or shoulders. It provides a standard method for a
complete analysis of joints or model predictions.
Keywords: joint, biomechanics, kinematics, anatomy, software, model.
1 Introduction
The recent development of navigation systems for surgery and orthopaedic
treatments and an increased interest for biomechanical modelling require more
accurate tools for model validation and more precise knowledge of joint
function. This study synthesises a long experience of human joint investigations
for biomechanics studies and computer–assisted orthopaedic evaluation, showing
Keywords
joint, biomechanics, kinematics, anatomy, software, model.
Related Book
Other papers in this volume
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