Lernmaterialien für 1. Pelvis an der University College Dublin

• Patient lies supine on the trolley, MSP perpendicular to the IR
• If possible ASIS should be equidistant from the table top
• Free detector in the trolley tray in landscape orientation
• ensure the arms are raised and outside the ROI
• Internally rotate the foot if possible to see NOF
• Vertical central ray along the midline between the ASIS and the upper border of the pubic symphysis
• Col to inc iliac crests superiorly, the prox thirds of the femurs inferiorly and the lateral skin margins
• 115cm SID to counteract magnification and OID

• Best demonstrates ring configuration of pelvis & narrowing or widening of diameter of ring is immediately apparent.
• This view allows the evaluation of pelvic brim integrity, AP
  displacement of the hemipelvis, internal/external rotation of the hemipelvis, and sacral impaction 

• Patient lies prone, MSP perpendicular to the midline of the table top, PSIS equidistant 
• tube is angled 10-25 degrees caudally (so that it is perpendicular with the long axis of the sacrum)
• Image detector displaced accordingly
• Centre between the PSIS along the MSP

The hemiarthroplasty replaces only the ball portion of the hip joint, not the socket portion. Commonly done after fractured hip as acetabulum is not usually fractured. 

Where the surface of the ball is shaved off and is capped and similary the
surface of the socket is scraped off and is resurfaced with metal lining. Usually done in younger patients. Leaves the head and neck untouched. 

Developmental Dislocation of the Hip (dysplasia) 

Midway between ASIS and Symph Pub

CR 25 degrees mediolaterally so it is perpendicular to the NOF 

15 degree caudal angulation centered 2.5cm superior to symph 

CR to palpable coccyx