Neither would be in any way effective. Even if the edge was left really coarse so as to maximze its sawing ability, the microteeth would quickly be ground off when cutting bone. I recently had to cut up some seal flippers and tried with a variety of small knives. None could do anything, and the bones were much smaller than a human arm or leg bone.
On a chop a knife can cut bone cleanly, but the sharpness has little effect, geometry and method is much more critical. The greater the speed and overall momentum the cleaner the cut. This of course is no excuse for having a dull knife, the sharpness if critical in many other areas.
-Cliff