with the patient supine, one lower limb is raised by the examiner with one hand, the other hand being placed under the patient's lower back; leverage is then applied to the side of the pelvis. If the patient feels pain before the lumbar spine is moved, the lesion is a sprain of the sacroiliac joint. If pain does not appear until after the lumbar spine moves, the lesion is in the sacroiliac or lumbosacral articulation.
