Lumbar disc herniation commonly presents with low back pain, and this problem is usually associated with sacroiliac joint (SIJ) disorders. In fact, up to 30.7% of patients with LBP and sciatica also have SIJ dysfunction . A recent study reported the prevalence of SIJ dysfunction as 72.3% among patients with LDH . Researchers have claimed that depending on the type of SIJ disorder, the lumbar spine (mostly L5) can also be involved . The SIJ is part of the lumbar– pelvic–hip complex; since this complex works as a mechanical unit, the involvement of any structure can affect the position and movement of other sections .