This pilot study was designed with the objective of reporting the cellular content of the vertebral body by comparing the average number of connective tissue progenitor cells (CFU-f /mL) using a novel aspiration technology – Marrow Cellution (MC) – that employs small draws from a single puncture that promote only lateral flow from multiple sites (SSLM Method), and by using traditional aspiration needle (BMAC) as a control.

A secondary purpose of the study was to retrospectively compare the two different sample aspiration protocols tested in this study to previous studies where the aspiration was taken from the iliac crest or vertebral body.