Failure of piriformis syndrome treatment may be secondary to an underlying obturator internus muscle injury.
2.
The Gemelli are two small muscular Obturator internus which is received into a groove between them.
3.
It is, notably, not responsible for the innervation of the obturator internus, despite the similarity in name.
4.
Like the obturator internus muscle, the gemellus superior and gemellus inferior help to steady the femoral head in the acetabulum.
5.
The Gemellus inferior arises from the upper part of the tuberosity of the ischium, immediately below the groove for the Obturator internus tendon.
6.
The appendix may come into physical contact with the obturator internus muscle, which will be stretched when this maneuver is performed on the right leg.
7.
:No mention of the Obturator externus at all; and that muscle is covered on the following page, without mention of the Obturator internus.
8.
It blends with the lower part of the tendon of the Obturator internus, and is inserted with it into the medial surface of the greater trochanter.
9.
As obturator internus turns around the lesser sciatic notch it loses some of its power; this is compensated for by the action of the gemelli ."
10.
It gives origin to the Levator ani and Obturator internus, and attachment to the puboprostatic ligaments and to a few muscular fibers prolonged from the bladder.
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