New Functions for In-Vitro Visualization of Joint Surfaces.  

The MotionMonitor™ has added the ability to digitize objects and surfaces relative to a kinematic tracking sensor.  Mesh files are created from the digitized data and then displayed in 3-D with orientations determined by the tracking sensor.  These functions provide a fast, inexpensive way to view the exact interaction of joint surfaces before and after surgical interventions.

1.   A multi-segment cadaver specimen is instrumented with kinematic trackers.

2.  The specimen is moved in a desired fashion with kinematic and kinetic data on each segment recorded using The MotionMonitor™s standard capture functions.

3.  A surgical intervention under study is then performed on the specimen. 

4,  The specimen is again moved and recorded.

5.  Without removing the tracking sensors from the specimen, the joint is disarticulated and the joint surfaces digitized using The MotionMonitor™s digitizing routines.   

6.  A mesh file is created from the digitized points using The MotionMonitor™s mesh file creation utility.   

7.  At this point, the user can “play back” the first and second activities and request that a “detail window” display the mesh files.  These mesh files reflect that exact topography of the joint center pre and post the intervention.