Obturator nerve. Medical search. Frequent questions

It then passes behind the common iliac arteries, and on the lateral side of the internal iliac artery and vein, and runs along the lateral wall of the lesser pelvis, above and in front of the obturator vessels, to the upper part of the obturator foramen. (wikipedia.org)
The nerves forming the sacral plexus converge toward the lower part of the greater sciatic foramen, and unite to form a flattened band, from the anterior and posterior surfaces of which several branches arise. (bartleby.com)
It then crosses the ischial spine, reënters the pelvis through the lesser sciatic foramen, and pierces the pelvic surface of the Obturator internus. (bartleby.com)
The Superior Gluteal Nerve ( n. glutæus superior ) arises from the dorsal divisions of the fourth and fifth lumbar and first sacral nerves: it leaves the pelvis through the greater sciatic foramen above the Piriformis, accompanied by the superior gluteal vessels, and divides into a superior and an inferior branch. (bartleby.com)
The obturator vein travels between the adductor region of the thigh and the internal iliac vein entering the pelvis through the obturator foramen , along with the obturator artery and obturator nerve . (radiopaedia.org)
It leaves the pelvis through the greater sciatic foramen, below the piriformis, and runs down in front of the sciatic nerve, the gemelli, and the tendon of the obturator internus, then enters the anterior surfaces of the quadratus femoris and gemellus inferior muscles. (medscape.com)
When a nerve is compressed along its path from the spinal cord or between organs or in a tunnel (foramen), it can generate a pain signal. (portlandpelvictherapy.com)
The obturator nerve travels from the lumbar (low back) plexus, through the psoas, by the ureters, through the obturator foramen (a body tunnel and common place of compression), where it then divides into an anterior (front) and posterior (back) branch. (portlandpelvictherapy.com)
Nari knows specific techniques to mobilize the pudendal nerve, the sacral plexus it comes from, the space between the sacrospinous and sacrotuberous ligaments, as well as doing fascial releases along the sciatic foramen. (portlandpelvictherapy.com)

Here it enters the thigh, through the obturator canal, and divides into an anterior and a posterior branch, which are separated at first by some of the fibers of the obturator externus, and lower down by the adductor brevis. (wikipedia.org)
The Obturator externus. (wikipedia.org)

Anterior branch of obturator nerve Posterior branch of obturator nerve Cutaneous branch of the obturator nerve The obturator nerve is responsible for the sensory innervation of the skin of the medial aspect of the thigh. (wikipedia.org)
Nevertheless, the term tarsal tunnel syndrome continues to be frequently used to define all entrapments of the tibial nerve or its branches, starting from posterior to the medial malleolus and extending distally. (medscape.com)
The iliohypogastric nerve traverses the psoas major, piercing the lateral border of the muscle anterior to the quadratus lumborum and posterior to the kidney to traverse the lateral abdominal wall. (medscape.com)
The obturator nerve courses posteromedially toward the obturator canal and subsequently splits into anterior and posterior divisions. (asra.com)
The sacral plexus (plexus sacralis) is a nerve plexus that provides motor and sensory nerves for the posterior thigh, most of the lower leg, the entire foot, and part of the pelvis (see the following image). (medscape.com)
The superior gluteal nerve arises from the posterior divisions of the fourth and fifth lumbar and first sacral nerve roots. (medscape.com)
Apically, the prostate is divided from the urethra (paying special attention to the sphincter muscle and posterior lateral nerve bundle on each side) allowing the prostate to be removed. (mycancergenome.org)

Common clinical practice is to combine a sciatic nerve with the femoral nerve block for surgical procedures distal to the proximal third of the thigh. (aneskey.com)
The band continues primarily as the sciatic nerve, which splits in the back of the thigh into the tibial nerve and common fibular nerve. (medscape.com)

The ilioinguinal, iliohypogastric, genitofemoral, obturator, and pudendal nerves are the major sensory nerves that may be involved in chronic groin and genital pain with a significant impact on the quality of life of patients . (bvsalud.org)
In this pictorial assay, we review the anatomy and clinical relevance of the ilioinguinal, iliohypogastric, genitofemoral, obturator, and pudendal nerves . (bvsalud.org)
We summarize the various techniques for ultrasound identification, and present the ultrasound-guided infiltration techniques for injecting the ilioinguinal, iliohypogastric, genitofemoral, obturator, and pudendal nerves . (bvsalud.org)
This paper is aimed to serve as a practical technical guide for physicians to familiarize themselves with the ultrasound anatomy of the major inguinal sensory nerves and to enable successful ultrasound identification and ultrasound-guided diagnostic or therapeutic infiltrations for pain management of the ilioinguinal, iliohypogastric, genitofemoral, obturator, and pudendal nerves . (bvsalud.org)
The anterior divisions of the sacral and coccygeal nerves ( rami anteriores ) form the sacral and pudendal plexuses. (bartleby.com)
The anterior division of the third sacral nerve divides into an upper and a lower branch, the former entering the sacral and the latter the pudendal plexus. (bartleby.com)
See below for details on pudendal nerve , lateral femoral cutaneous nerve , obturator neuralgia , and genitofemoral nerve . (portlandpelvictherapy.com)
The pudendal nerve takes a twisted, long route through the pelvis, around the sacrospinous and sacrotuberous ligament. (portlandpelvictherapy.com)
The pudendal nerve passes between two of the deep hip rotator muscles: the piriformis and coccygeus. (portlandpelvictherapy.com)
The Pudendal Nerve is also responsible for innervation of several pelvic floor muscles from the superficial bulbocavernosus to the deeper, powerful levator ani. (portlandpelvictherapy.com)

However, with the introduction of modern nerve stimulators, selective blockade of the obturator nerve has become more reliable and has seen a resurgence of interest in recent times. (aneskey.com)

Selective obturator nerve block was first described by Labat in 1922. (aneskey.com)
When deemed necessary, addition of a selective obturator nerve block may reduce intraoperative discomfort, improve tourniquet tolerance, and improve the quality of postoperative analgesia in these cases. (aneskey.com)
12 - 16 However, a selective obturator nerve block remains the safest and most effective alternative to this problem. (aneskey.com)
It can be suppressed only by a selective obturator nerve block. (aneskey.com)
Selective obturator nerve block has also been used in the diagnosis and treatment of chronic pain states secondary to knee arthrosis or pelvic tumors resistant to conventional analgesic approaches. (aneskey.com)
In fact, research strongly suggests that the obturator reflex is not prevented by spinal anesthesia and can only be suppressed by a selective obturator nerve block. (londonpainclinic.com)

Entrapment of the tibial nerve or one of its branches gives rise to tarsal tunnel syndrome , which is the most common entrapment neuropathy in the foot and ankle area. (medscape.com)
Historically, tarsal tunnel syndrome was defined as entrapment of the tibial nerve in the fibro-osseous tunnel behind the medial malleolus, and it was considered rare. (medscape.com)
The tibial and sciatic nerves also supply parts of the thigh. (healthline.com)

Here, it passes back to divide into three dorsal digital nerves. (drbeen.com)
The dorsal branch is called the dorsal nerve to the clitoris in women and the dorsal nerve of the penis in men. (portlandpelvictherapy.com)

It is, notably, not responsible for the innervation of the obturator internus, despite the similarity in name. (wikipedia.org)
The Nerve to the Obturator Internus and Gemellus Superior arises from the ventral divisions of the fifth lumbar and first and second sacral nerves. (bartleby.com)

The iliohypogastric nerve arises primarily from the ventral primary rami of L1 and occasionally with a twig from T12. (medscape.com)
The anterior cutaneous branch of the iliohypogastric nerve continues anteriorly between the internal oblique muscle and the transversus abdominis, then pierces the internal oblique muscle and becomes cutaneous through an opening in the fascial aponeurosis of the external oblique muscle, approximately 2-3 cm cephalad to the superficial inguinal ring. (medscape.com)

The superior gluteal vessels run between the lumbosacral trunk and the first sacral nerve, and the inferior gluteal vessels between the second and third sacral nerves. (bartleby.com)
A cadaveric study of 150 hemi-pelvises found the obturator vein to be the most inferior structure of the obturator neurovascular bundle in 47% of specimens 2 . (radiopaedia.org)
From the second, third, and fourth sacral nerves, a pelvic splanchnic nerve is given to the inferior hypogastric plexus. (medscape.com)

Variations in origin and course of obturator artery. (wikipedia.org)
Vagus nerve relating to Common carotid artery & Internal jugular vein. (anatomytrains.com)

Nerve supply to the thigh comes from various lumbar and sacral nerves via the femoral, obturator, and common peroneal nerves. (healthline.com)

Obturator nerve Obturator nerve Lumbar and sacral plexus. (wikipedia.org)
The sacral plexus is formed by the lumbosacral trunk, the anterior division of the first, and portions of the anterior divisions of the second and third sacral nerves. (bartleby.com)
The sacral plexus is formed by the union of the lumbosacral trunk (from the anterior rami of L4 and L5) and the anterior rami of the first, second, third, and fourth sacral nerves. (medscape.com)

The obturator nerve originates from the anterior divisions of the L2, L3, and L4 spinal nerve roots. (wikipedia.org)
The obturator reflex is not abolished by spinal anesthesia. (aneskey.com)

4 In 1973, Winnie introduced the concept of the "3-in-1 block," an anterior approach to the lumbar plexus using a simple paravascular inguinal injection to anesthetize the femoral, lateral cutaneous nerve of the thigh and obturator nerves. (aneskey.com)
6 - 9 A number of diagnostic or therapeutic procedures on the knee and thigh can be performed by combining obturator nerve block with block of the sciatic, lateral cutaneous nerve and femoral nerves. (aneskey.com)
Preexisting obturator neuropathy, clinically manifested by groin pain, pain of the posteromedial aspect at the thigh and occasionally paresis of the adductor group of muscles, are relative contraindications to this block. (aneskey.com)
Injury or entrapment of the lateral femoral cutaneous nerve, also known as meralgia paresthetica (from the Greek words mēros ["thigh"] and algos ["pain"]), is a syndrome of paresthesia and pain in the lateral and anterolateral thigh. (medscape.com)
An obturator nerve block is a nerve block administered to the areas including hip, anterior thigh, knee, lower leg or foot. (londonpainclinic.com)
The obturator nerve supplies a small, variable amount of skin on the medial aspect of the knee and lower thigh. (londonpainclinic.com)
Indications Lateral femoral cutaneous nerve blockade is useful for diagnosing and treating pain in the lateral thigh, thought to be from irritation of this nerve. (dieutridau.com)
Nerves of the anterior and medial thigh. (osmosis.org)
Keep in mind the muscles of the deep inner thigh are just muscles, so they are controlled by this nerve. (portlandpelvictherapy.com)

The endopelvic fascia is then excised from lateral prostate and carried to capsule to create a plane of dissection immediately alongside the prostatic capsule and keeping the nerves attached laterally to the endopelvic fascia. (mycancergenome.org)

The sensory innervation of the hip is complex, involving multiple nerves from both lumbar and sacral plexi. (asra.com)

The obturator fascia has been cut away and the pelvic diaphragm has been split and reflected. (stanford.edu)
The ultrasound-guided suprainguinal fascia iliaca block, described by Hebbard in 2011, further built on earlier anatomic discoveries to more reliably anesthetize the 3 nerves originally targeted by Winnie: femoral, lateral femoral cutaneous, and obturator. (asra.com)
The femoral, lateral femoral cutaneous (LFCN), and obturator nerves all descend from the lumbar plexus into the pelvis and come to share a compartment beneath the fascia iliaca for a short distance (Figure 1). (asra.com)
This location along the inguinal ligament places the needle somewhere between the femoral and lateral femoral cutaneous nerves and forms the starting location for the ultrasound transducer in the suprainguinal fascia iliaca approach. (asra.com)

The anterior divisions of the upper four sacral nerves enter the pelvis through the anterior sacral foramina, that of the fifth between the sacrum and coccyx, while that of the coccygeal nerve curves forward below the rudimentary transverse process of the first piece of the coccyx. (bartleby.com)
Nerve pain can present in several ways in the pelvis. (portlandpelvictherapy.com)

This is not only distracting to the surgeon, but also potentially dangerous, increasing the risk of serious complications such as bladder wall perforation, vessel laceration, incomplete tumor resection, and obturator hematomas. (aneskey.com)
The transurethral plasmakinetic resection of bladder tumor using needle electrode can realize en bloc tumor resection without obturator nerve reflex and reduce the risk of ureteral orifice injury. (urotoday.com)

In time, however, the lateral plantar nerve and its branches were noted to be a more common site of entrapment. (medscape.com)
[ 3 ] interdigital neuroma, Morton metatarsalgia, or interdigital nerve compression-results from entrapment of a plantar interdigital nerve as it passes under the transverse metatarsal ligament. (medscape.com)
Unfortunately, the patients who receive diagnoses such as neuropathic pain or nerve entrapment are presented with few options. (hermanwallace.com)

This two-day online course for the experienced pelvic rehab therapist will address problem-solving assessments for the major contributory nerves from the lumbar plexus in an organized, systematic fashion. (hermanwallace.com)
Pelvic rehab is traditionally centered around muscles, but muscles are at the will of the innervating nerve. (hermanwallace.com)
Each receives a gray ramus communicans from the corresponding ganglion of the sympathetic trunk, while from the third and frequently from the second and the fourth sacral nerves, a white ramus communicans is given to the pelvic plexuses of the sympathetic. (bartleby.com)
it appears at the medial margin of the Psoas major and runs downward over the pelvic brim to join the first sacral nerve. (bartleby.com)
Nerve Cryoablation for pelvic pain. (ucpps.men)

Accidental puncture of the obturator vessels could result in an unintentional intravascular injection. (londonpainclinic.com)
Areolar connective tissue has been stripped from the underlying vessels and nerves. (stanford.edu)
One of the most important to understand is how the pressure of rope on the body - or the positions that a body might be held in during a tie - can impact and even damage nerves and blood vessels. (theduchy.com)
And, more importantly, each compartment contains its own muscles, as well as blood vessels and nerves. (osmosis.org)

In addition, others have more specifically identified entrapments involving the first branch of the lateral plantar nerve and the calcaneal nerves. (medscape.com)
The femoral, LFCN, and obturator nerves branch and diverge from one another as they descend toward the inguinal region. (asra.com)
This nerve gives an articular branch to the hip joint. (medscape.com)
One supply is from the femoral nerve , and the second supply is from a branch of the obturator nerve . (osmosis.org)

The nerve supplies the lower fibers of the transversus abdominis and the internal oblique muscle and divides into lateral and anterior cutaneous branches. (medscape.com)
Prior studies have demonstrated a dense anterior capsule innervation, involving femoral, obturator, and accessory obturator nerves. (asra.com)
The ultrasound-guided suprainguinal approach results in better anesthesia of anterior hip nerves, at least in part due to more reliable obturator blockade compared to landmark techniques. (asra.com)
Phrenic nerve relating to Anterior scalene muscle. (anatomytrains.com)
the anterior rami of the fifth sacral nerve enter between the sacrum and coccyx. (medscape.com)

Patient refusal, inguinal lymphadenopathy, perineal infection, or hematoma at the needle insertion site are typical contraindications to obturator nerve blockade. (aneskey.com)
The femoral nerve remains in this plane but gives off branches to the iliacus and acetabulum prior to reaching the inguinal ligament. (asra.com)
It makes sense that, in order to reach these nerves with a single injection, local anesthetic spread well above the inguinal ligament is preferred. (asra.com)
the lateral femoral cutaneous nerve can become entrapped around the inguinal ligament. (portlandpelvictherapy.com)
The genitofemoral nerve travels through the inguinal canal. (portlandpelvictherapy.com)

The anatomy of the peripheral nerves can be successfully studied using imaging. (bvsalud.org)
High-resolution ultrasound is increasingly used in the clinical setting for visualizing small peripheral nerves , and magnetic resonance imaging provides an anatomical overview of the relationship between small nerves and surrounding structures. (bvsalud.org)
In essence, your peripheral nerves control your body's ability to react to various stimuli by acting as the messenger between the brain and the rest of your body. (neurology-clinics.com)
That makes nerve damage or injuries to the peripheral nerves very painful and debilitating. (neurology-clinics.com)
Because there are so many peripheral nerves throughout your body, there are many different types of nerve injuries . (neurology-clinics.com)

The nerve is also responsible for the motor innervation of the adductor muscles of the lower limb (external obturator, adductor longus, adductor brevis, adductor magnus, gracilis) and the pectineus (inconstant). (wikipedia.org)

This course will cover extensive anatomy and differential diagnosis and objective findings for specific nerves of the lumbar plexus. (hermanwallace.com)
It will also include 12 key lab techniques to launch your journey into manually treating the nerves of the lumbar plexus, with research-based approaches to manual nerve treatment. (hermanwallace.com)
these two nerves sometimes arise separately from the plexus, and in all cases their independence can be shown by dissection. (bartleby.com)
Nerves to the psoas , as well as the major parts of the lumbar plexus, have been exposed. (stanford.edu)

Experts suggest that the obturator nerve is a mixed nerve, which in most cases, provides motor function to the adductor muscles and cutaneous sensation to a small area behind the knee. (londonpainclinic.com)
It contains many muscles and nerves but only has one bone, the femur, which is the longest and strongest bone in the human body. (healthline.com)
Radial nerve relating to Triceps, Supinator and Forearm extensor muscles. (anatomytrains.com)

Long saphenous vein harvest significantly increased the rate of nerve injury. (elsevierpure.com)
Long saphenous vein harvest significantly increased the rate of nerve injury.CONCLUSIONS: There is a high incidence of sensory nerve damage following lower limb arterial surgery. (elsevierpure.com)

It (C7, C8) arises above the wrist and descends with the ulnar nerve to the pisiform bone. (drbeen.com)

They are designed for holding the anchor on the tip until insertion into the obturator membrane complex. (coloplast.ca)
cf. 1) Anchors are made from polypropylene and have flexible tines designed for secure placement into the obturator membrane complex. (coloplast.ca)

An enlarged pubic vein may replace the obturator vein ref . (radiopaedia.org)
OBJECTIVE: Nerve injury is one of the most common complications of varicose vein surgery and is a frequent cause for litigation but its incidence following lower limb arterial surgery has not been well documented. (elsevierpure.com)
Redo surgery or superficial femoral vein harvest had no influence on the incidence of nerve injury. (elsevierpure.com)

There are no reports of complications associated with the obturator nerve block. (londonpainclinic.com)
However, a few but serious complications could occur because of the obturator nerve block. (londonpainclinic.com)
Phenol neurolysis is not specific for the motor fibers and therefore can cause secondary sensory nerve damage and complications such as painful neuropathy (On et al. (scireproject.com)

Nerve injury occurs most commonly as a complication of surgical procedures involving the lower abdomen. (medscape.com)
Therefore, it is important that everyone involved recognize that this risk is always present, and that even if both Top and bottom do what they can to reduce the risk, nerve injury may still occur. (theduchy.com)
During nephrectomy, patients are frequently positioned in the lateral decubitus position, putting them at risk for pressure sores, nerve injury, or venous congestion. (pulsus.com)
Name common causes of injury for each nerve. (hermanwallace.com)
This most often requires nerve injury treatment , which can range in intensity and style. (neurology-clinics.com)
When encountered, nerve injury can have a number of shocking and often painful symptoms. (neurology-clinics.com)
The only way to discover the cause of your nerve injury is to consult with a doctor. (neurology-clinics.com)
Nerve injury can be treated in a number of ways, depending on the severity and nature of the damage. (neurology-clinics.com)
Nerve injury surgery typically requires a period of healing after the operation is complete. (neurology-clinics.com)
Nerve injury can severely impact your life and cause chronic, unavoidable pain. (neurology-clinics.com)
Nerve Injury Consultation Today! (neurology-clinics.com)
This study was undertaken to determine the incidence of nerve injury following lower limb arterial surgery. (elsevierpure.com)
Below knee incisions had a higher incidence of nerve injury than other approaches. (elsevierpure.com)

Introducers are designed with a needle curvature for a safe, reproducible anchor placement avoiding obturator vascular and nerve bundles. (coloplast.ca)

The genitofemoral nerve or its branches (genital or femoral) can be entrapped throughout its course. (medscape.com)
Genitofemoral nerve: That persistent or intermittent burning sensation in the vulva or penis, that shooting pain in the front of the privates that feels intense or deeply achy: that could well be your genitofemoral nerve. (portlandpelvictherapy.com)

Direct stimulation of the obturator nerve by the resector as it passes in close proximity to the bladder wall results in a sudden, violent adductor muscle spasm. (aneskey.com)
Neuraxial infusion, nerve stimulation, and neural blockade can help selected patients. (merckmanuals.com)

With numerous years' experience in successfully treating over 90 chronic pain conditions, our experts can employ any one of a number of specialist interventions - from analgesic medications to nerve root injections and physiotherapy. (londonpainclinic.com)

1 More interest in obturator nerve block emerged a few years later when Pauchet, Sourdat, and Labat stated, "obturator nerve block combined with blocks of the sciatic, femorocutaneous nerves, anesthetized the entire lower limb. (aneskey.com)
Obturator nerve blocks should be avoided in the presence of a coagulopathy. (aneskey.com)
To treat painful conditions that respond positively to the nerve blocks. (londonpainclinic.com)
These methods can be categorized into neuraxial local analgesics and opioids, peripheral nerve blocks, and wound infiltration. (medscape.com)
Indications Femoral nerve blockade is useful in conjunction with other lower extremity blocks in treating complex regional pain syndrome and as an aid to decrease knee and ankle pain during physical therapy. (dieutridau.com)

All participants received 19 ultra sound-guided femoral nerve block. (scireproject.com)

Obturator nerve block is also occasionally used in urologie surgery to suppress the obturator reflex during transurethral resection of the lateral bladder wall. (aneskey.com)
Statistical analysis was performed on the operation time, the incidence of obturator nerve reflex, the peri-operative bleeding, the parameters of indwelling ureteral catheter or double-J stent, the incidence of postoperative hydronephrosis, the clinical stage of tumor, and the recurrence rate. (urotoday.com)
No obvious obturator nerve reflex and perioperative bleeding occurred in all the patients. (urotoday.com)

An accessory obturator nerve may be present in approximately 8% to 29% of the general population. (wikipedia.org)

All you need to know about how we treat back, nerve, head & face, groin pain and more, in a concise 20 page brochure. (londonpainclinic.com)

An obturator nerve block may be used during knee surgery and urethral surgery in combination with other anaesthetics. (wikipedia.org)

Anatomy5

Diseases3

Analytical, Diagnostic and Therapeutic Techniques and Equipment2

Foramen9

Externus2

Posterior7

Sciatic nerve2

Pudendal10

Blockade of the obturator nerve1

Selective obturator nerve block6

Tibial3

Dorsal2

Internus2

Iliohypogastric2

Inferior3

Artery2

Common peroneal nerves1

Sacral plexus3

Spinal2

Thigh9

Laterally1

Lumbar and sacral1

Fascia4

Pelvis2

Tumor resection2

Entrapment3

Pelvic5

Vessels4

Branch4

Anterior5

Inguinal5

Peripheral nerves5

Innervation1

Plexus4

Muscles3

Saphenous2

Ulnar1

Membrane2

Vein3

COMPLICATIONS3

Injury13

Vascular1

Genitofemoral nerve2

Stimulation2

Injections1

Blocks5

Femoral nerve block1

Reflex3

Accessory1

Groin pain1

Knee1