The present invention relates to a positioner apparatus, system and method for supporting the body of a patient for a surgical procedure using a posterior pelvic support assembly in the area of the back, sacrum, coccyx, and/or the axial skeleton for the pelvic region of the spine, and an anterior pelvic support assembly for supporting the body at each of the crest of ilium area and the pubis area. The positioner system provides posterior and anterior pelvic support assemblies that are movably adjustable for freedom of movement in multiple coordinate planes to accommodate a wide range of patient sizes for surgery, e.g. where a patient is placed in the lateral decubitus position.
