A virtual training system has been developed to train novice surgeons on using the new jig and fixture in a knee replacement surgery. In this study, we described how a virtual hand was employed in a Virtual Knee Replacement Surgery Training System. The virtual hand is equipped with HOMER-G, a selection and manipulation technique that combines the Arm-extension and Ray-casting technique for easy selection and manipulation of virtual object with the virtual grasping capability during selection task. The virtual jig and fixture are selected using Ray-casting technique and the arm extension technique of HOMER-G will help to manipulate the object. The virtual hand's movement is controlled by a data glove and Flock of Birds tracking device. HOMER-G has the grasping capability that makes the manipulation of object looks more natural.
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