Determining range of motion from three dimensional meshes.

<p>(A) An example of determining the ROM of manual phalanx I-1 around metacarpal I in extended and flexed positions. The guide meshes are visible projecting from the specimen meshes. (B) The specimen meshes removed leaving the created guides used for determining the range of motion. A line of neutral articulation was created along a horizontal plain which is used as the basal limit for extension and flexion measurements. Abbreviations: ex extension angle; fl flexion angle; h hinge joint; nal neutral articulation line.