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    Figure 44-13 
A, Anatomic landmarks
for lateral femoral cutaneous, femoral, and obturator nerve blocks.  B,
For an obturator nerve block, the needle is walked off the inferior pubic ramus in
a medial and cephalad direction until it passes into the obturator canal (see  Plate
12
 in the color atlas of this volume).
    
    
    
    
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