Piriformis Syndrome

Halpin, Ryan J.; Ganju, Aruna

doi:10.1227/01.neu.0000335788.45495.0c

Cited by 42 publications

(3 citation statements)

References 50 publications

(59 reference statements)

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“…Variations include the sciatic nerve coursing anterior to, posterior to, or within the ventral portion of the piriformis muscle. When it is related to an abnormality in the piriformis muscle, neuropathy of the proximal segment of the sciatic nerve can be called piriformis syndrome, although there is controversy in the literature about the existence of this causal relationship (16,17) .…”

Section: Compressive Causesmentioning

confidence: 99%

Sciatic neuropathy: findings on magnetic resonance neurography

Agnollitto

Chu²,

Simão

et al. 2017

Radiol Bras

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Injuries of the sciatic nerve are common causes of pain and limitation in the lower limbs. Due to its particular anatomy and its long course, the sciatic nerve is often involved in diseases of the pelvis or leg. In recent years, magnetic resonance neurography has become established as an important tool for the study of peripheral nerves and can be widely applied to the study of the sciatic nerve. Therefore, detailed knowledge of its anatomy and of the most prevalent diseases affecting it is essential to maximizing the accuracy of diagnostic imaging.

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Section: Compressive Causesmentioning

confidence: 99%

Sciatic neuropathy: findings on magnetic resonance neurography

Agnollitto

Chu²,

Simão

et al. 2017

Radiol Bras

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“…[11][12][13] In addition, because the common peroneal division has fewer, larger fascicles and less supportive tissue compared to the tibial division and due to its lateral location in the sciatic notch, it is thought to be more vulnerable to compression and more prone to strain injuries than tibial division. [14,15] Gluteal pain, pain in the back of the thigh and sciatica-like symptoms are the most reported clinical findings of the PS. [3,4] Pain aggravation by sitting is one of the important clinical signs.…”

Section: Discussionmentioning

confidence: 99%

An Unusual Case of Piriformis Syndrome: Peroneal Neuropathy

Güleç¹

2020

Agri

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Piriformis syndrome (PS) is a syndrome consisting of symptoms that occur due to compression of the sciatic nerve at the level of the piriformis muscle (PM). The most commonly reported complaints (cardinal features) are radiation to the ipsilateral tight, buttock pain, and reproduction of pain on prolonged sitting. In this study, we report a 64 years old female case presented with peroneal neuropathy symptoms without gluteal pain and sciatica and treated using ultrasound-guided PM injection successfully.

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“…1 ) is a controversial diagnosis, with no consensus about diagnostic criteria. Hence, the diagnosis is typically one of exclusion [ 14 , 22 , 23 ]. In particular, it is important to exclude lumbar spinal pathology before making the diagnosis of piriformis syndrome [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Nerve entrapment syndromes of the lower limb: a pictorial review

Kumar,

Mangi,

Zadow

et al. 2023

Insights Imaging

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Peripheral nerves of the lower limb may become entrapped at various points during their anatomical course. While clinical assessment and nerve conduction studies are the mainstay of diagnosis, there are multiple imaging options, specifically ultrasound and magnetic resonance imaging (MRI), which offer important information about the potential cause and location of nerve entrapment that can help guide management. This article overviews the anatomical course of various lower limb nerves, including the sciatic nerve, tibial nerve, medial plantar nerve, lateral plantar nerve, digital nerves, common peroneal nerve, deep peroneal nerve, superficial peroneal nerve, sural nerve, obturator nerve, lateral femoral cutaneous nerve and femoral nerve. The common locations and causes of entrapments for each of the nerves are explained. Common ultrasound and MRI findings of nerve entrapments, direct and indirect, are described, and various examples of the more commonly observed cases of lower limb nerve entrapments are provided.Critical relevance statement This article describes the common sites of lower limb nerve entrapments and their imaging features. It equips radiologists with the knowledge needed to approach the assessment of entrapment neuropathies, which are a critically important cause of pain and functional impairment.Key points• Ultrasound and MRI are commonly used to investigate nerve entrapment syndromes.• Ultrasound findings include nerve hypo-echogenicity, calibre changes and the sonographic Tinel’s sign.• MRI findings include increased nerve T2 signal, muscle atrophy and denervation oedema.• Imaging can reveal causative lesions, including scarring, masses and anatomical variants. Graphical Abstract

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Piriformis Syndrome

Cited by 42 publications

References 50 publications

Sciatic neuropathy: findings on magnetic resonance neurography

Sciatic neuropathy: findings on magnetic resonance neurography

An Unusual Case of Piriformis Syndrome: Peroneal Neuropathy

Nerve entrapment syndromes of the lower limb: a pictorial review

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