Filtering BMA may actually reduce the cellularity of the biologic, but it’s a necessary step. What is drawn, and what the researcher is seeking to look at, are spicules–which are soft tissue drawn from wringing the spongy marrow. Andrew provides a comparison of unfiltered vs filtered, finding that filtering doesn’t improve the quality. “There’s no indication that filtering helps, however, companies have to filter for the centrifuge to work,” Andrew noted. Get the real facts by watching the video now.