The thick line represents the most proximal of these images on MRI and was used for comparison with the single USI image (OI, obturator internus
; IG, inferior gemellus; QF, quadratus femoris).
Deep brain stimulation for Gilles de la Tourette syndrome: A case series targeting subregions of the globus pallidus internus
. Mov Disord 2011;26:1922-30.
A subsequent MRI displayed unchanged swelling of the right piriformis, obturator internus
, and sciatic nerve (Figures 1 and 2) but new tumefaction of gluteus medius and minimus on the same side.
Myofascial pain syndrome affecting the piriformis and the obturator internus
 clearly observed by surgery and reported that stretching of the obturator internus
muscle compressed the sciatic nerve.
As the dissection was conducted layer by layer from the back, after punching through the skin, the laparoscope could go through superficial fascia, latissimus dorsi, obliquus internus
abdominis, transversus abdominis, transverse fascia and extraperitoneal fat layer and finally reached the retroperitoneal space (Fig.
Currently, reports concerning globus pallidus internus
(GPi)-deep brain stimulation (DBS) for medically refractory generalized or segmental dystonia [sup] are increasing.
Six deep muscles of the hip (piriformis, obturator internus
, obturator externus, gemellus inferior, gemellus superior, and quadratus femoris) are well positioned to rotate the hip joints externally without causing compensatory action in surrounding muscles and joints.
Upon physical examination, hyperalgesia was found during palpation of the lesser sciatic notch and the obturator internus
We also want to use a certain amount of finesse, taking care not to traumatize the sacrospinous ligament, arcus tendineus, or most importantly, the iliococcygeal, coccygeal, and obturator internus
Placement of deep brain stimulators into the subthalamic nucleus or globus pallidus internus
: Technical approach.
The gemelli muscles, together with piriformis, obturator internus
, obturator externus and quadratus femoris, are deep muscles of the hip joint.