Obturator nerve. The obturator nerve is part of the group of nerves called the anterior lumbar plexus. The nerve provides sensory perception to the skin on the medial side of the thigh. It also provides motor function to the hip and knee joints and the abductor muscles and gracilis.


What muscles does the obturator artery supply? Supply. The obturator artery supplies the pelvic muscles it crosses, the head of the femur, the muscles of the medial compartment of the thigh and gives a small branch to the knee capsule. The iliac branch supplies the bone and the iliacus muscle. It also has a cutaneous supply to the medial thigh.

what does the obturator nerve supply?

The obturator nerve (L2–L4) supplies the pectineus; adductor (longus, brevis, and magnus); gracilis; and external obturator muscles. This nerve controls adduction and rotation of the thigh. A small cutaneous zone on the internal thigh is supplied by sensory fibers.

What is the obturator sign? The obturator sign or Cope's obturator test is an indicator of irritation to the obturator internus muscle. The technique for detecting the obturator sign, called the obturator test, is carried out on each leg in succession. The patient lies on her/his back with the hip and knee both flexed at ninety degrees.

how do you treat obturator nerve pain?

For anterior obturator nerve entrapment, treatment may consist of electrical stimulation of the adductor and hip flexor muscles, stretching, and massage. These modalities, however, typically have not been successful in resolving this condition if it is not recognized early.

What is obturator nerve entrapment? Entrapment of the obturator nerve is an under-recognized and rarely taught cause of groin, thigh, and knee pain. Obturator nerve dysfunction can mimic hip pathology, groin strain, and claudication.

what causes obturator pain?

Obturator neuropathy is a difficult clinical problem to evaluate. One possible cause of pain is due to fascial entrapment of the nerve. Symptoms include medial thigh or groin pain, weakness with leg adduction, and sensory loss in the medial thigh of the affected side.

Where does obturator nerve originate? Obturator nerve. The obturator nerve (latin: nervus obturatorius) is mixed nerve that originates from the lumbar plexus and innervates the muscles and skin in the medial region of the thigh. The obturator nerve arises from the ventral rami of the second, third and fourth lumbar nerves (L2 - L4).

What does the obturator muscle do?

Obturator internus. Its primary function is to help move the thigh away from the center of the body by rotating it in a sideways direction. When the thigh is flexed, it assists other muscles in moving the thigh outward, away from the midline of the body. It also helps to stabilize the hip joint.

What Plexus is the obturator nerve from? lumbar plexus

Where is pain felt when an obturator muscle test is positive?

A psoas or obturator sign is considered positive when contact between the psoas or the obturator muscle and the inflamed appendix elicits pain. Rovsing sign is positive when pain is felt with pressure at a point on the left side of the abdomen corresponding to McBurney point on the right.

What passes through obturator foramen?

The obturator canal is a passageway formed in the obturator foramen by part of the obturator membrane. It connects the pelvis to the thigh. The obturator artery, obturator vein, and obturator nerve all travel through the canal.

What is the purpose of the sciatic nerve?

Function. The sciatic nerve supplies sensation to the skin of the foot, as well as the entire lower leg (except for its inner side). Sensation to skin to the sole of the foot is provided by the tibial nerve, and the lower leg and upper surface of the foot via the common peroneal nerve.

What nerve supplies obturator Internus?

The nerve to obturator internus arises from the anterior divisions of the sacral plexus. It is formed from the L5-S2 nerve roots and exits the pelvis via the greater sciatic foramen inferior to the piriformis muscle and typically between the posterior cutaneous nerve of the thigh and the pudendal nerve.

What painkiller is good for nerve pain?

Painkilling medicines. Some people with neuropathic pain turn to familiar over-the-counter painkillers like acetaminophen, aspirin, and ibuprofen. While these drugs might help with mild or occasional pain, they're often not strong enough for serious nerve pain.

What does nerve pain in groin feel like?

A pinched nerve in the hip often causes pain in the groin. Sometimes the pain also radiates down the inner thigh. The pain may feel like a dull ache or it may be a sharp, burning pain. You may also experience painful numbness, especially in the buttocks, or a tingling sensation.

What causes obturator Internus dysfunction?

Common OI Dysfunction Symptoms The pudendal nerve runs in close proximity to the OI muscle which can become irritated with OI TrPs and can cause various other symptoms as well. Many patients come into Zion Physical Therapy for hip and leg pain with running and biking and the OI muscle is the culprit.

What causes tight obturator Internus?

The obturator internus can become tensioned or spasmed from overworking, muscle imbalances, injuries, and postural changes. Some symptoms of obturator internus muscle tension include: Hips that feel tight and your feet always seem to be rotated out. Lateral hip pain, can be mistaken for IT band syndrome/bursitis.

How do you stretch the obturator Externus?

To perform this stretch: Sit on the floor with a straight back. Extend the right leg out. Position the sole of the left foot on the right thigh, as close to the pelvic region as possible. Lean forward, placing the palms on the floor on either side of the right leg. Hold for 30 seconds. Repeat on the other side.