If, on examination, tenderness that replicates the dyspareunia is elicited when palpating the levator or obturator internus muscle
, pelvic-floor muscle trigger-point injection can be offered (although physical therapy is first-line treatment).
Alcock canal syndrome due to obturator internus muscle
Additionally, there was severe edema involving the left hip adductor muscles (quadratus femoris, obturator externus, and obturator internus), high-grade partial thickness tearing of the adductor magnus muscle at its femoral attachment, and highgrade partial thickness tearing of the obturator internus muscle
at its iliac attachment.
A 4.0 x 2.4 cm multi-loculated cystic lesion adjacent to the right obturator internus muscle
, medically indeterminate."
According to Terry (1942), the combined function of the obturator internus muscle
and both gemelli muscles, work as a powerful hip lateral rotator.
Mainly, L2-L3 intervertebral space, sternoclavicular joints, knees, left hip, elbows, left shoulder, left deltoid muscle, right subscapularis muscle, left obturator internus muscle
, and gluteal muscles were involved.
Insight into the function of the obturator internus muscle
in humans: observations with development and validation of an electromyography recording technique.
It passes through the following structures in the following order: gracilis, adductor brevis muscle, obturator externus muscle, obturator membrane, and beneath or through the obturator internus muscle
and periurethral endopelvic connective tissue; it finally exits through the opened vagina.
Rather than a poke, the midurethral incision is long enough--about 1.5 cm--for me to reach a finger behind the obturator internus muscle
after having sharply dissected the suburethral tissue and fascia.
Myofascial pain syndrome affecting the piriformis and the obturator internus muscle
. Pain Pract 2005;5:361-3.
Peritoneal hernia develops through this defect by first increasing separation of muscular band of obturator internus muscle
and later separating obturator externus muscle.
Upon physical examination, hyperalgesia was found during palpation of the lesser sciatic notch and the obturator internus muscle
. Palpation in this area reproduced the 9/10 pain in his penis and perineum and caused fasciculations in the surrounding buttock musculature.