The sacro-iliac joint.
D000328:Adult; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis / Q000628:therapy; D007870:Leg Length Inequality; D008297:Male; D009068:Movement; D010146:Pain; D010388:Pelvis / Q000033:anatomy & histology; D026741:Physical Therapy Modalities / Q000379:methods; D011247:Pregnancy; D012445:Sacrococcygeal Region; D012446:Sacroiliac Joint / Q000033:anatomy & histology / Q000502:physiology; D013314:Stress, Mechanical