obturator nerve


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Related to obturator nerve: Nerve to obturator internus

ob·tu·ra·tor nerve

[TA]
arises from the lumbar plexus, conveying fibers from the second, third, and fourth lumbar nerves in the psoas muscle, crosses the brim of the pelvis, and enters the thigh through the obturator canal; it supplies muscles of the medial compartment of the thigh (adductors of thigh at the hip joint) and terminates as the cutaneous branch of the obturator nerve, supplying a small area of medial thigh above knee.
Synonym(s): nervus obturatorius [TA]

ob·tu·ra·tor nerve

(ob'tŭr-ā-tŏr nĕrv) [TA]
Arises from the second, third, and fourth lumbar nerves in the psoas muscle, crosses the brim of the pelvis, and enters the thigh through the obturator canal; it supplies muscles of the medial compartment of the thigh (adductors of thigh at the hip joint) and terminates as the cutaneous branch of the obturator nerve, supplying a small area of medial thigh above knee.
Synonym(s): nervus obturatorius [TA] .

obturator nerve

A motor nerve originating in the lumbar plexus and composed of axons from spinal cord segments L2–L4. It passes into the thigh through the obturator foramen of the pelvic bones and innervates the adductor longus, adductor brevis, gracilis, pectineus, obturator externus, and adductor magnus muscles.
See also: nerve
References in periodicals archive ?
In our study, we described the passage of the posterior division of the obturator nerve in the medial thigh region within the distinct fascial layer overlying the obturator externus and the proximal part of the adductor magnus muscles.
Among these, the articular branch of the obturator nerve innervates the anteromedial hip joint capsule.
The femoral triangle of the left lower limb of the male cadaver was dissected to expose the muscular branches of the femoral and obturator nerves. The superficial fascia and adipose tissue were removed.
The ganglion impinged upon the obturator nerve and produced radicular pain.
The ventral branches of L2, L3 and L4 form the obturator nerve. The dorsal roots of L2 and L3 have lesser branches, which make up the lateral cutaneous nerve of the thigh, and greater branches, that along with the dorsal root of L4 are the origins of the femoral nerve.
There is risk of injury to the femoral vessels due to its lateral proximity with a mean distance of 2.14 [+ or -] 0.35 cm for the femoral artery and 1.71 [+ or -] 0.55 cm for the femoral vein (FV); the obturator nerve (ON) is located 0.87 [+ or -] 0.62 cm inferior and lateral to the portal (Table I).
Recently, Mattei and colleagues examined the primary prostate lymphatic drainage sites in PCa patients.[sup.1] In their report, they defined "limited PLND" as the removal of LNs along the external iliac vein and obturator nerve; they reported that this dissection missed up to 62% of the primary LNs.
It then traveled forwards, infero-lateral to the common trunk of internal pudendal and inferior gluteal artery, it further coursed forwards and downwards lying over the ischio-coccygeal part of levator ani to reach the upper part of obturator foramen, running parallel and inferior to the obturator nerve. Medially it was related to the left ureter and ductus deferens.
The potential complications of LFCN blockage such as nerve puncture, intraneural injection, unintentional motor blocks of femoral and obturator nerve involvement, and intravascular injections could be avoided with US guidance.
recently showed that the outside-in pathway was distant from the posterior branch of the obturator nerve and inferior external pudendal artery.16 The risk of bladder perforation decreases dramatically with the TOT technique.