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]

Farlex Partner Medical Dictionary © Farlex 2012

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] .

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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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.

Critical sites of entrapment of the posterior division of the obturator nerve: anatomical considerations

Neurolytic blockade of the obturator nerve for intractable spasticity of adductor thigh muscles.

Localizacion de los Puntos de Entrada del Nervio de los Musculos Aductores del Muslo Mediante Tomografia Computarizada Espiral: Una Nueva Guia Anatomica para la Neurolosis Quimica en el Tratamiento de la Espasticidad Muscular

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.

A Novel Method for Localizing Nerve Entry Points During Spasticity Treatment/Un Nuevo Metodo para Localizar los Puntos de Entrada del Nervio Durante el Tratamiento de la Espasticidad

The ganglion impinged upon the obturator nerve and produced radicular pain.

Pelvic presentation of a hip joint ganglion: a case report

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.

Regional nerve block for femoro-popliteal and tibial arterial reconstructions

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).

Neurovascular Structures at Risk During Anterolateral and Medial Arthroscopic Approaches of the Hip/Estructuras Neurovasculares en Riesgo Durante Abordajes Artroscopicos Anterolaterales y Mediales de la Cadera

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.

Should all men having a radical prostatectomy have a pelvic lymph node dissection? No

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.

Anomalous origin of obturator artery from the internal iliac artery/Origen anomalo de la arteria obturatriz de la arteria iliaca interna

Transfer of two motor branches of the anterior obturator nerve to the motor portion of the femoral nerve: an anatomical feasibility study.

Ramos de Inervacion y Distribucion del Nervio Femoral en el Musculo Cuadriceps Femoral de Individuos Brasilenos/Innervation Branches and Distribution of the Femoral Nerve in the Quadriceps Femoral Muscle in Brazilian Individuals

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.

Blind Versus Ultrasound Guidance Injections: Lateral Femoral Cutaneous Nerve Blockage Revisited/Lateral Femoral Kutanoz Sinirinin Kor ve Ultrason Esliginde Yapilan Blokajinin Degerlendirilmesi

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.

The outcomes of transobturator tape intervention in the treatment of stress urinary incontinence: Two years' follow-up