Gluteal Contractions as a Gateway to Sacral Plexus

The present study was carried out to determine the morphological structure and the branches of the lumbosacral plexus in the indigenous duck (Anas platyrhynchos domesticus). Six mature indigenous ducks were used in this study. After administering an anesthetic to the birds, the body cavities were opened. The nerves of the lumbosacral plexus were dissected separately and photographed. The lumbosacral plexus consisted of lumbar and sacral plexus innervated to the hind limb. The lumbar plexus was formed by the union of three roots of spinal nerves that included last two and first sacral spinal nerve. Among three roots, second (middle) root was the highest in diameter and the last root was least in diameter. We noticed five branches of the lumbar plexus which included obturator, cutaneous femoral, saphenus, cranial coxal, and the femoral nerve. The six roots of spinal nerves, which contributed to form three trunks, formed the sacral plexus of duck. The three trunks united medial to the acetabular foramen and formed a compact, cylindrical bundle, the ischiatic nerve. The principal branches of the sacral plexus were the tibial and fibular nerves that together made up the ischiatic nerve. Other branches were the caudal coxal nerve, the caudal femoral cutaneous nerve and the muscular branches. This study was the first work on the lumbosacral plexus of duck and its results may serve as a basis for further investigation on this subject.

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Sacral plexus disorder caused by a wooden toothpick in the rectum

BMJ Case Reports ◽

10.1136/bcr-2020-238690 ◽

2021 ◽

Vol 14 (1) ◽

pp. e238690

Author(s):

Takuro Endo ◽

Taku Sugawara ◽

Naoki Higashiyama

Keyword(s):

Lower Limb ◽

Spinal Nerve ◽

Leg Pain ◽

Sacral Plexus ◽

Lateral Recess ◽

Lateral Recess Stenosis ◽

Preoperative Ct ◽

History Of ◽

History Of Pain ◽

The Right

A 67-year-old man presented with a 2-month history of pain in his right buttock and lower limb. MRI depicted right L5/S1 lateral recess stenosis requiring surgical treatment; however, preoperative CT showed an approximately 7 cm long, thin, rod-shaped structure in the rectum, which was ultimately determined to be an accidentally ingested toothpick. It was removed surgically 6 days after diagnosis, because right leg pain worsened rapidly. The pain disappeared thereafter, and the symptoms have not recurred since. The pain might have been localised to the right buttock and posterior thigh in the early stages because the fine tip of the toothpick was positioned to the right of the anterior ramus of the S2 spinal nerve. Although sacral plexus disorder caused by a rectal foreign body is extremely rare, physicians should be mindful to avoid misdiagnosis.

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Genitourinary dysfunction in male rats after bilateral neurectomy of the motor branch of the sacral plexus

Neurourology and Urodynamics ◽

10.1002/nau.22242 ◽

2012 ◽

Vol 31 (8) ◽

pp. 1288-1293 ◽

Cited By ~ 4

Author(s):

Margarita Juárez ◽

Isela Hernández ◽

Yolanda Cruz

Keyword(s):

Male Rats ◽

Sacral Plexus ◽

Motor Branch

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Obturator Nerve Transfer to the Branch of the Tibial Nerve Innervating the Gastrocnemius Muscle for the Treatment of Sacral Plexus Nerve Injury

Neurosurgery ◽

10.1227/neu.0000000000001166 ◽

2015 ◽

Vol 78 (4) ◽

pp. 546-551 ◽

Cited By ~ 4

Author(s):

Gang Yin ◽

Huihao Chen ◽

Chunlin Hou ◽

Jianru Xiao ◽

Haodong Lin

Keyword(s):

Nerve Injury ◽

Gastrocnemius Muscle ◽

Tibial Nerve ◽

Nerve Transfer ◽

Obturator Nerve ◽

Surgical Reconstruction ◽

Sacral Plexus ◽

Medial Head ◽

Anterior Branch ◽

The Mean

Abstract BACKGROUND: Lower-limb function is severely impaired after sacral plexus nerve injury. Nerve transfer is a useful reconstructive technique for proximal nerve injuries. OBJECTIVE: To investigate the clinical effectiveness and safety of transferring the ipsilateral obturator nerve to the branch of the tibial nerve innervating the medial head of the gastrocnemius muscle to recover knee and ankle flexion. METHODS: From 2007 to 2011, 5 patients with sacral plexus nerve injury underwent ipsilateral obturator nerve transfer as part of a strategy for surgical reconstruction of their plexuses. The mean patient age was 31.4 years (range, 19-45 years), and the mean interval from injury to surgery was 5.8 months (range, 3-8 months). The anterior branch of the obturator nerve was coapted to the branch of the tibial nerve innervating the medial head of the gastrocnemius muscle by autogenous nerve grafting. RESULTS: Patient follow-up ranged from 24 to 38 months. There were no complications related to the surgery. Three patients recovered to Medical Research Council grade 3 or better in the medial head of the gastrocnemius muscle. Thigh adduction function was not affected in any patient. CONCLUSION: Knee and ankle flexion can be achieved by transferring the anterior branch of the obturator nerve to the branch of the tibial nerve innervating the medial head of the gastrocnemius muscle, which is useful for balance. This procedure can be used as a new method for treating sacral plexus nerve injury.

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Morphology of the sacral plexus of the tapir

ACTA THERIOLOGICA ◽

10.4098/at.arch.69-25 ◽

1969 ◽

Vol 14 ◽

pp. 313-319

Author(s):

Anna Arłamowska-Palider

Keyword(s):

Sacral Plexus

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Lateral sacral plexus radiofrequency ablation with multilesion probe in patients with refracter sacroiliac joint pain

Sinir Sistemi Cerrahisi Dergisi ◽

10.5222/sscd.2016.44154 ◽

2018 ◽

Author(s):

Abdurrahman Çetin ◽

Abdulkadir Yektaş

Keyword(s):

Radiofrequency Ablation ◽

Sacroiliac Joint ◽

Joint Pain ◽

Sacral Plexus ◽

Sacroiliac Joint Pain

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Variations in Course and Branching of Sciatic Nerve and it’s Relation to Pyriformis Syndrome

International Journal of Anatomy and Research ◽

10.16965/ijar.2021.173 ◽

2021 ◽

Vol 9 (4) ◽

pp. 8156-8159

Author(s):

Patel Dinesh K ◽

◽

Shinde Amol A ◽

Keyword(s):

Sciatic Nerve ◽

Hip Replacement ◽

Popliteal Fossa ◽

Point Of View ◽

Lower Limbs ◽

Type B ◽

Sacral Plexus ◽

Type D ◽

Variant Anatomy ◽

Anatomy Teaching

Background: Sciatic nerve is a branch of sacral plexus. It passes below the pyriformis and divides in the popliteal fossa. Higher division and relation of sciatic nerve to pyriformis have been documented. Beaton and Anson have classified relation of sciatic nerve to pyriformis. The aim of this study is to find incidence of variant anatomy of sciatic nerve as per Beaton and Anson classification. Materials and methods: 48 formalin embalmed lower limbs used for regular anatomy teaching were used. Branching and course of sciatic nerve was observed in gluteal region,thigh and popliteal fossa. Observations: As per Beaton and Anson classification, we found 81.2% showed type A or normal arrangement. Type B variation was seen in 14.6% while 4.2% showed type D variation. Conclusion: Variations in branching of sciatic nerve and it’s relation to pyriformis muscle are important from point of view of Surgeons and Anaesthetists. Knowledge of these variations will help reducing block failures in cases of sciatica, pyriformis syndrome and hip replacement surgeries. KEY WORDS: Sciatic nerve, Sacral plexus, Pyriformis Syndrome, Hip replacement.

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