Sacrum, Coccyx, and SI Joints Projections

AP Axial Sacrum (Position)
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Terms in this set (30)
AP Axial Sacrum (Position)
supine, MSP centered to grid, ASISs equidistant from grid, support under knees, arms up and symmetric
AP Axial Sacrum (SID)
40
AP Axial Sacrum (CR)
15 degrees cephalic and centered to a point 2" superior to the pubis
AP Axial Sacrum (Anatomy)
Sacrum Free of foreshortening
Lateral Sacrum (Position)
affected side and flex hips and knees, arms at right angles to the body, superimpose the knees, support under the body to place the long axis of the spine horizontal, pelvis and shoulders placed so that there is no rotation of body, sacrum and coccyx centered to grid
Lateral Sacrum (SID)
40
Lateral Sacrum (CR)
perpendicular and directed to the level of the ASIS and to a point of 3 1/2" posterior
Lateral Sacrum (Anatomy)
Lateral projection of sacrum
AP Axial Coccyx (Position)
supine, MSP centered to grid, ASISs equidistant from grid, support under knees, arms up and symmetric
AP Axial Coccyx (SID)
40
AP Axial Coccyx (CR)10 degrees caudad and centered ~2" superior to pubic symphysis, centered to IRAP Axial Coccyx (Anatomy)Coccyx free of foreshorteningLateral Coccyx (Position)affected side and flex hips and knees, arms at right angles to the body, superimpose the knees, support under the body to place the long axis of the spine horizontal, pelvis and shoulders placed so that there is no rotation of body, sacrum and coccyx centered to gridLateral Coccyx (SID)40Lateral Coccyx (CR)perpendicular and directed toward a point 3 ½" posterior to the ASIS and 2" inferior; centered to IR, close collimationLateral Coccyx (Anatomy)Lateral Projection of coccyxAP Axial (Ferguson) (Position)supine, MSP centered to grid, lower limbs extended, ensure that the pelvis is not rotatedAP Axial (Ferguson) (SID)40AP Axial (Ferguson) (CR)30 to 35o cephalad, entering 1 ½" superior to the pubic symphysis on the MSP, centered to the IRAP Axial (Ferguson) (Anatomy)Lumbosacral joint L5 S1AP Oblique (SI Joints) (RPO/LPO) (Position)rolled ~25 to 30o away from IR (side being examined farthest from IR), sagittal plane passing 1" medial to ASIS if the elevated side centered to midline of gridAP Oblique (SI Joints) (RPO/LPO) (SID)40AP Oblique (SI Joints) (RPO/LPO) (CR)perpendicular to center of IR, entering 1" medial to elevated ASISAP Oblique (SI Joints) (RPO) (Anatomy)Left SI JointAP Oblique (SI Joints) (LPO) (Anatomy)Right SI JointPA Oblique (SI Joints) (LAO/RAO) (Position)rolled ~25 to 30o toward from IR (side being examined closest from IR), center the body so that a point 1" medial to the ASIS closest to the IR is centered to the gridPA Oblique (SI Joints) (LAO/RAO) (SID)40PA Oblique (SI Joints) (LAO/RAO) (CR)perpendicular to center of IR, entering 1" medial to elevated ASISPA Oblique (SI Joints) (LAO) (Anatomy)Left SI JointPA Oblique (SI Joints) (RAO) (Anatomy)Right SI Joint