RT Book, Section A1 Dutton, Mark SR Print(0) ID 8657033 T1 Chapter 13. The Lumbopelvic Complex T2 Dutton's Orthopedic Survival Guide: Managing Common Conditions YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-0-171510-2 LK accessphysiotherapy.mhmedical.com/content.aspx?aid=8657033 RD 2024/04/16 AB The lumbopelvic complex consists of the lumbar spine and sacroiliac joint (SIJ). This complex can be the source of many symptoms, both serious and benign. Any clinician examining and treating this region must have a sound understanding and knowledge of the anatomy and biomechanics as abnormalities of the lumbar spine and SIJ may lead to compensatory or secondary abnormalities in other portions of the spine, pelvis, or hip.