E. ANTERIOR PELVIC BONE & F. ILIUM

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9 Terms

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ANTERIOR PELVIC BONE PROJECTIONS

1. PA PROJECTION

2. AP AXIAL “OUTLET” PROJECTION: TAYLOR METHOD

3. SUPEROINFERIOR AXIAL “INLET” PROJECTION: BRIDGEMAN METHOD

4. SUPEROINFERIOR AXIAL PROJECTION: LILIENFELD METHOD

PA AXIAL INLET PROJECTION: STAUNIG METHOD

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PA PROJECTION

PP: Prone; IR center to greater trochanter (level of pubic symphysis)

RP: Distal coccyx

CR: ┴

SS: Pubic symphysis & ischia; obturator foramina

<p><span><strong>PP: </strong>Prone; IR center to greater trochanter (level of pubic symphysis)</span></p><p><span><strong>RP: </strong>Distal coccyx</span></p><p><span><strong>CR: </strong>┴</span></p><p><span><strong>SS: </strong>Pubic symphysis & ischia; obturator foramina</span></p>

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AP AXIAL “OUTLET” PROJECTION: TAYLOR METHOD

PP: Supine; ASISs equidistant from table; knee flexed slightly

RP: 2 in. distal to superior border of pubic symphysis

CR: 20-35o cephalad (males); 30-45o (females)

SS: Pelvic outlet
• Superior & inferior rami without foreshortening

<p><strong>PP: </strong>Supine; ASISs equidistant from table; knee flexed slightly</p><p><strong>RP: </strong>2 in. distal to superior border of pubic symphysis</p><p><strong>CR: </strong>20-35o cephalad (males); 30-45o (females)</p><p><strong>SS: </strong>Pelvic outlet<br>• <strong>Superior & inferior rami without foreshortening</strong></p><p></p>

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SUPEROINFERIOR AXIAL “INLET” PROJECTION: BRIDGEMAN METHOD

PP: Supine; ASISs equidistant from table; knee flexed slightly; IR center at level of greater trochanters

RP: level of ASISs

CR: 40o caudad

SS: Pelvic ring/inlet

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SUPEROINFERIOR AXIAL PROJECTION: LILIENFELD METHOD

PP: Seated-erect; knees slightly flexed; patient lean backward 45-50o ; arch the back (places pubic arch in vertical position)

RP: 1.5 in. superior to symphysis pubis

CR: ┴

SS: Pelvic ring/inlet
• Anterior pubic & ischial bones
• Symphysis pubis

Alternative Position:
→ Supine
→ CR: 40 degrees caudad.

<p><strong>PP: </strong>Seated-erect; knees slightly flexed; patient lean backward 45-50o ; arch the back (places pubic arch in vertical position)</p><p><strong>RP: </strong>1.5 in. superior to symphysis pubis</p><p><strong>CR: </strong>┴</p><p><strong>SS: </strong>Pelvic ring/inlet<br>• Anterior pubic & ischial bones<br>• Symphysis pubis</p><p>Alternative Position:<br>→ Supine<br>→ CR: 40 degrees caudad.</p>

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PA AXIAL “INLET” PROJECTION: STAUNIG METHOD

PP: Prone

RP: Symphysis pubis

CR: 35o cephalad

SS: Pelvic ring/inlet
• Anterior pubic & ischial bones
• Symphysis pubis

<p><span><strong>PP: </strong>Prone</span></p><p><span><strong>RP: </strong>Symphysis pubis</span></p><p><span><strong>CR: </strong>35o cephalad</span></p><p><span><strong>SS: </strong>Pelvic ring/inlet</span><br><span>• Anterior pubic & ischial bones</span><br><span>• Symphysis pubis</span></p>

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ILIUM PROJECTIONS

1. AP OBLIQUE PROJECTION

2. PA OBLIQUE PROJECTION

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AP OBLIQUE PROJECTION

PP: Supine; RPO/LPO; unaffected side elevated 40o (places broad surface of the wing of affected ilium // to IR); shoulder, hip & knee elevated

RP: Level of ASIS

CR: ┴

SS:
• Unobstructed projection of ala & sciatic notches
• Profile image of acetabulum
• Broad surface of the iliac wing without rotation

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PA OBLIQUE PROJECTION

PP: Prone; RAO/LAO; unaffected side elevated 40o (places affected ilium ┴ to IR); patient rested on forearm; knee of elevated side flexed

RP: Level of ASIS

CR: ┴

SS: Ilium in profile
• Femoral head within acetabulum