![]() A pillow or other support between knees promotes stabilization and patient comfort. Some scholars recommended a dorsal decubitus lateral projection of pelvis for demonstration of “gull-wing sign” in cases of fracture dislocation of acetabularrim and posterior dislocation of femoral head. If vertebral column is allowed to sag, it will tilt pelvis in longitudinal plane. Adjust pelvis in true lateral position, with ASIS lying in same vertical plane. Place one knee directly over other knee. Position of part Recumbent position. When patient can be placed in lateral position, center the midcoronal plane of body to midline of grid. Extend thighs enough to prevent femur from obscuring pubic arch. Place support under lumbar spine, and adjust it to place vertebral column parallel with tabletop. Position of patient Place patient in lateral recumbent, dorsal decubitus, or upright position. Have patient suspend respiration for exposure. Purpose and Structures Shown Clear image of lateral pelvis. Lumbosacral junction, sacrum, coccyx, superimposed hip bones, and upper femur. Video Credit : TheXra圜hic Pelvis Lateral Left or Right If pelvis is deep, palpate for iliac crest and adjust position of IR so that its upper border will project 1 to 1.2 inches (2.5to3.8cm) above crest.Ĭentral ray Perpendicular at midline of patient about 2 inches (5cm) inferior to ASIS and 2 inches (5cm) superior to pubic symphysis in average-sized patients. Heels should be placed about 8- 10 inches (20 to24cm) apart. Immobilize legs with sandbag across ankles, if needed. Check distance from ASIS to table top on each side to be sure that pelvis is not rotated. Center IR midway between ASIS and pubic symphysis. ![]() Unless contraindicated due to trauma or pathologic factors, medially rotate feet and lower limbs about 15 -20 degrees to place femoral necks parallel with plane of the IR. Medial rotation is easier for patient to maintain if knees are supported. Position of patient Supine position. Have patient suspend respiration for exposure. Purpose and Structures Shown Clear image of entire pelvis. Also demonstrates head, neck, trochanters, and proximal one third or one fourth of shaft of femur. This article discusses radiographic positioning to show the hip and pelvis for the Radiologic Technologist (X-Ray Tech). ![]()
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