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obturator nerve

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obturator nerve

[′äb·tə‚rād·ər ¦nərv]
(neuroscience)
A mixed nerve arising in the lumbar plexus; innervates the adductor, gracilis, and obturator externus muscles, and the skin of the medial aspect of the thigh, hip, and knee joints.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
Given the importance of the relationship between the posterior division and the obturator externus muscle as one of the possible causes of posterior division neuropathy, we identified the following classes of variations: i) the posterior division of the obturator nerve passes over the musculotendinous aponeurotic arch, anterior to the obturator externus muscle (32 out of 56), ii) the posterior division of the obturator nerve emerges from the proximal quarter of the substance of the obturator externus muscle, perforates it and descends anterior to its distal part (22 cases out of 56), iii) the posterior division descends entirely posterior to the obturator externus muscle, emerging from its inferior border (2 cases out of 56).
Also, in 4 (2%) patients we observed an obturator nerve deficit, with a full functional recovery during the follow-up.
As route of entry into the vagina and mid urethral segment is very safe without jeopardizing the obturator nerve or vessel therefore reduces the risk of injury to the internal organs, i.e.
The obturator nerve was noticeably deviated by the mass.
Injury to the obturator nerve is felt on the skin of the medial upper leg, and injury to the femoral nerve is felt in the anterior thigh down to the knee.
Obturator hernia sac passes through obturator foramen following the path of obturator nerve and vessels.
Obturator nerve injuries are infrequent events following total hip arthroplasty; Weber (16) reported only one in 2,012 total hip arthroplasties.
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