Corpus: Inferior gluteal nerve: Unterschied zwischen den Versionen

Aktuelle Version vom 10. Juni 2024, 13:20 Uhr

Definition

The inferior gluteal nerve is a mixed peripheral nerve that originates from the sacral plexus. It contains fibers from the spinal cord segments L5 to S2.

Course

The inferior gluteal nerve emerges from the sacral plexus caudal to the superior gluteal nerve. It runs alongside with the sciatic nerve towards the infrapiriform foramen. Exiting the small pelvis through this foramen, along with other structures, it travels to the gluteal region. At the lower edge of the piriformis muscle, the nerve divides into numerous muscular branches that provide the gluteus maximus muscle with motor innervation.

3D-Model of the nerves of the leg. The inferior gluteal nerve is labeled No. 7.

Function

The inferior gluteal nerve innervates the gluteus maximus muscle and sends sensitive branches to the joint capsule of the hip joint.

Clinic

Lesions of the inferior gluteal nerve, which may occur due to incorrect intramuscular injections or nerve compression, can lead to unilateral loss of function of the gluteus maximus muscle. Bilateral isolated failure of the inferior gluteal nerve is rare.

Such paresis significantly impairs thigh extension and external rotation at the hip joint, leading to difficulties in rising from a sitting position and climbing stairs. Paraesthesia (abnormal sensations) does not occur. Normal walking is less affected as the hamstring muscles can largely compensate for the loss.

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 ==Definition==
-The '''inferior gluteal nerve''' is a mixed peripheral nerve that originates from the [[corpus:sacral plexus|sacral plexus]]. It contains fibres from the spinal cord segments L5 to S2.
+The '''inferior gluteal nerve''' is a mixed peripheral [[Corpus:Nerve|nerve]] that originates from the [[corpus:sacral plexus|sacral plexus]]. It contains fibers from the [[Corpus:Spinal cord|spinal cord]] segments L5 to S2.
 ==Course==
-The inferior gluteal nerve emerges from the sacral plexus caudal to the [[corpus:superior gluteal nerve|superior gluteal nerve]]. It runs together with the [[corpus:sciatic nerve|sciatic nerve]] to the infrapiriform foramen. It leaves the small pelvis through the foramen - together with other pathways - and travels to the gluteal region. At the lower edge of the [[corpus:piriformis muscle|piriformis muscle]], it divides into numerous rami musculares, which enter the muscle body of the [[corpus:gluteus maximus|gluteus maximus]] and supply it with motor energy.
+The inferior gluteal nerve emerges from the sacral plexus caudal to the [[corpus:superior gluteal nerve|superior gluteal nerve]]. It runs alongside with the [[corpus:sciatic nerve|sciatic nerve]] towards the infrapiriform foramen. Exiting the small [[Corpus:Pelvis|pelvis]] through this foramen, along with other structures, it travels to the [[Corpus:Gluteal region|gluteal region]]. At the lower edge of the [[corpus:piriformis muscle|piriformis muscle]], the nerve divides into numerous muscular branches that provide the [[Corpus:Gluteus maximus muscle|gluteus maximus muscle]] with motor innervation.
 <dcembed ratio="16x9" caption="3D-Model of the nerves of the leg. The inferior gluteal nerve is labeled No. 7. "><dcEmbedUrl src="https://sketchfab.com/3d-models/nervus-genitofemoralis-224f7cace50a430c998e79e37a5f7dfa"></dcEmbedUrl></dcembed>
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 ==Clinic==
+Lesions of the inferior gluteal nerve, which may occur due to incorrect intramuscular injections or nerve compression, can lead to unilateral loss of function of the gluteus maximus muscle. Bilateral isolated failure of the inferior gluteal nerve is rare.
-Lesions of the inferior gluteal nerve, for example due to incorrect i.m. injections or compression of the nerve, can cause a unilateral loss of function of the gluteus maximus muscle. Double-sided isolated failure of the inferior gluteal nerve is a rarity.
+Such paresis significantly impairs thigh extension and external rotation at the hip joint, leading to difficulties in rising from a sitting position and climbing stairs. Paraesthesia (abnormal sensations) does not occur. Normal walking is less affected as the hamstring muscles can largely compensate for the loss.
-The paresis severely impairs the extension and external rotation of the thigh in the hip joint in particular. This typically leads to difficulties when standing up from a sitting position and when climbing stairs. Paraesthesia does not occur. Normal walking is less affected as the ischiocrural muscles can largely compensate for the loss.
 [[Kategorie:Corpus]]
 [[Kategorie:Nerve]]