Fig. 1From: Limitations in clinical outcome after posterior stabilization of thoracolumbar fractures do not correlate with dynamic trunk muscle dysfunction: an ultrasound controlled prospective cohort studyExample of an ultrasound examination: left side: illustration of the lumbar multifidus muscle at level L3/4; right side: illustration of the abdominal muscles (EO external oblique muscle; IO internal oblique muscle; TrA transversus abdominis muscle)Back to article page