小中大
In the first place, I would like to clarify that all the points I listed at 2007-02-06 13:15 are my opinions. Of course, some of fresh cells you isolated are mature osteoclasts, however, there must be many cells which are at pre-osteoclasts (mononuclear cells) stage, although they are TRAP positive too.
In the second place, from my point of view, you can employ both methods to isolate cells from the bones. But, if you isolate cells by using trypsin, the cells may need longer time to recovery.
In conclusion, the cells you harvested will not be pure mature osteoclasts.