Authors: Margherita Forlani Nicola Sancisi Michele Conconi Vincenzo ParentiCastelli
Publish Date: 2015/02/17
Volume: 51, Issue: 7, Pages: 1571-1581
Abstract
The evaluation of the knee joint behavior is fundamental in many applications such as joint modeling prosthesis and orthosis design A new test rig for in vitro analysis of the knee joint behavior is presented in this paper Based on a cabledriven parallel manipulator loading system the rig can simulate general loading conditions such as clinical tests and common daily activities in a wide range of flexion angles The joint natural response in terms of movement is measured by an optoelectronic system Furthermore the new rig allows the estimation of the contribution of the principal leg muscles in guaranteeing the equilibrium of the joint Despite its simplicity and low cost the rig presents good accuracy repeatability and versatility that allow its application on a wide range of specimen sizes It represents an advanced application of cabledriven parallel robots for in vitro motion analysis of the knee subjected to general loadsThe authors wish to acknowledge the Health Sciences and Technologies Interdepartmental Centre for Industrial Research HSTICIR for supporting this research and thank Dr Benedetta Baldisserri and Dr Diego Zannoli for their contribution to the construction of the rig
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