Obturator foramen

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(Anat.) an opening situated between the public and ischial parts of the innominate bone and closed by the obturator membrane; the thyroid foramen.

See also: Obturator

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After the needle tip touched the inferior border of the superior pubic ramous, the needle was withdrawn shortly and then directed 45 degrees laterally to enter the obturator foramen.
It was redirected laterally and slightly inferiorly to slip past the inferior ramus and just underneath the superior ramus of the pubic bone, then advanced an additional 11/2 inch to lie in the area of the obturator foramen.
The subsequent computed tomography (CT) also demonstrated a small bowel loop herniating through the obturator foramen, lying between the pectineus and obturator muscles [Figure 1]d.
The obturator internus originates from the rami surrounding the obturator foramen and the quadrilateral plate and leaves the pelvis through the lesser sciatic notch before inserting on the greater trochanter of the proximal femur (4).
According to operative reports for these 2 patients, the needle passed through the obturator foramen with difficulty.
6,7] Bowel herniating through the obturator foramen and lying between the pectineus and obturator muscles is a key finding on CT and determines the diagnosis.
We still pass the needle all the way through a vaginal incision and out through the obturator foramen, and we pull the sling into place as we would any other TOT sling.
The obturator nerve has a variable number of articular branches likely radiating from a common stem located lateral to the obturator foramen inferior to the acetabulum (Figure 3).
The sina que non on CT is visualization of the bowel entering obturator canal through the obturator foramen, which is inferior and lateral to the inguinal canal.