Radiology of the Hip


- AP view:
    - patient is supine with the foot internally rotated 15 deg to obtain best views of the femoral neck;
    - central beam is directed toward the femoral head;
    - X-ray tube should be positioned 100 cm from focal plane of film cassette to yield an image at 20%
            magnification, corresponding to the magnification incorporated in the templates;
            - tape measure will allow accurate assessment of radiographic magnification;  

- Lateral View: 
    - surgical lateral view:
         - this view should be obtained on all patients suspected of having a hip fracture or dislocation;
         - do not order a frog leg lateral in any patient suspected of having a hip fracture or dislocation)
         - patient is supine; the opposite hip is flexed and abducted;
         - cassette is placed against the lateral aspect of the affected hip;
         - central beam is directed horizontally toward the groin with about 20 degree of cephalic tilt;

  - frogleg lateral view:
         - do not order a frog leg lateral in any patient suspected of having hip fracture or dislocation);
         - patient is supine w/ knees flexed, soles of feet together, and the thighs maximally abducted;
         - central beam is directed vertically or with a 10 to 15 deg cephalic tilt to a point slightly above pubic symphysis;


  - Radiographic Evaluation for Hip Arthroplasty:
       - preop x-rays for THR:
       - post op x-rays for THR:

- Radiographic Evaluation of Femoral Neck Fractures:
- Radiographic Evaluation for Acetabular Fractures
       - judet views
       - roof arc measurements:
- Radiographic Evaluation for Pelvic Frx

Determination of Acetabular Coverage of the Femoral Head with Use of a Single Anteroposterior Radiograph.  A New Computerized Technique.

The lateral trochlear sign. Femoral trochlear dysplasia as seen on a lateral view roentgenograph.

A Systematic Approach to the Plain Radiographic Evaluation of the Young Adult Hip

Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Monday, August 5, 2013 12:37 pm