A Variant of the Sciatic Nerve and its Clinical Implications

Dupont, Graham; Unno, Florence; Iwanaga, Joe; Oskouian, Rod J.; Tubbs, R. Shane

doi:10.7759/cureus.2874

Cited by 12 publications

(20 citation statements)

References 7 publications

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“…A study by Antoniadis reported [ 6 ] that 25% of symptomatic SN lesions were iatrogenic, whether through surgical trauma or anesthetic mishaps, highlighting the difficulty in identifying and isolating the SN. Just as Dupont et al [ 7 ] suggest, a thorough survey of a patient’s SN course needs to be appreciated prior to treatment in order to minimize the risk of iatrogenic injury, which must be preceeded by an understaning of all the possible SN variations.…”

Section: Discussionmentioning

confidence: 99%

Reunification of a split sciatic nerve

et al. 2020

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Sciatic nerve (SN) variaitons can result in interesting clinical presentations. We identified a SN variant that does not fit into preexisting classification schemes. In an adult male cadaver, the SN was found to divide proximally and partly exit through the piriformis muscle. Distal to the piriformis, the two parts of the SN were reunited. Although apparently extremely rare, such a finding should be added to the archives of anatomical variations.

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Section: Discussionmentioning

confidence: 99%

Reunification of a split sciatic nerve

et al. 2020

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“…where the CFN split superior to and the TN passed inferior to the superior gemellus muscle [9]. Furthermore, in rare cases, the sciatic nerve has been found to split before reaching the PM in a manner where the CFN and TN travel on both sides of the ischial tuberosity [10].…”

Section: Discussionmentioning

confidence: 99%

Simultaneous Posterior Femoral Cutaneous Nerve and Sciatic Nerve Variations: A Case Report

et al. 2020

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During the routine dissection of a formalin fixed Caucasian cadaver, a previously unreported variation of the sacral plexus was found in the right gluteal region. The posterior femoral cutaneous nerve was found to pierce the piriformis muscle as opposed to running along its more common course below the muscle. At the same level of the posterior femoral cutaneous nerve, the common fibular nerve also pierced the piriformis muscle, while the tibial nerve passed inferior to the piriformis muscle. No other anatomical variations were found.

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“…It originates from both posterior and anterior divisions of the ventral rami of L4, L5, S1, S2, and S3 nerve roots. The SN leaves the pelvis through the sciatic foramen, below the piriformis muscle (15,16).…”

Section: Anatomymentioning

confidence: 99%

The Importance of Sacral Neuroanatomy in Pain Syndromes and Procedures

Hashemi

Momenzadeh

Taheri

et al. 2021

Interv Pain Med Neuromod

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: The neural plexus exists in different parts of the body. The sacral plexus is the lowest neural network in the body that is responsible for sensory and motor innervation to a large part of the body. The sacral plexus or sacral nerve roots may be damaged by diseases, such as disc herniation, spinal canal stenosis, and cancer or iatrogenic injuries during surgery or interventional pain procedures (open spinal surgeries, hip surgeries, percutaneous endoscopic disc decompression, trans-sacral epiduroscopic laser decompression, …). Patients with sacral nerve damage may experience a variety of symptoms, including low back pain radiating to the legs, sensory disturbance in the buttocks or legs, motor weakness in the legs, bladder or bowel dysfunction (urinary retention/incontinence, defecation’s problems), or sexual dysfunction. Therefore, complete familiarity with the anatomy of the sacral plexus is very important. In this article, we tried to review the anatomy of the sacral plexus and sensory or motor innervations of each terminal branch of the sacral plexus. Also, the clinical importance of these nerves in the development of pain syndromes and diagnostic and therapeutic methods for damage to the terminal branches of the sacral plexus were investigated.

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A Variant of the Sciatic Nerve and its Clinical Implications

Cited by 12 publications

References 7 publications

Reunification of a split sciatic nerve

Reunification of a split sciatic nerve

Simultaneous Posterior Femoral Cutaneous Nerve and Sciatic Nerve Variations: A Case Report

The Importance of Sacral Neuroanatomy in Pain Syndromes and Procedures

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