1. Anterior rotation of the innominate, can 'jam the Sciatic Nerve against the greater sciatic notch (See Figure above). If severe enough, this can produce symptoms that mimic Sciatica (Piriformis Syndrome).
Anterior rotation of the innominate can produce symptoms that micmic sciatica (Sciatica is pain radiating from the buttocks, down to the foot, caused by a herniated disk or vertebral stenosis)