Introduction Low back pain is not a disease, it is a symptom. It can be defined as pain between the bottom ribs and the buttock creases(Dionne et al., 2008). Chronic low back pain patients are always asking about the cause of their pain(McPhillips-Tangum et al., 1998; Cherkin et al., 1998). A lot of people can experience it during their life. For instance, 6.3%–14.4% of people … Continue reading In-field note: a patient appeared with an extraspinal source of referred leg discomfort