The effect of muscle relaxant on the paraspinal muscle blood flow: a randomized controlled trial in patients with chronic low back pain.

STUDY DESIGN A randomized controlled trial. OBJECTIVE To investigate the effect of muscle relaxant for muscle blood flow at the trunk muscle in patients with chronic low back pain (LBP). SUMMARY OF BACKGROUND DATA Paraspinal muscle function is widely believed to play a role and considered to be of etiologic significance in LBP, and intramuscular… (More)