Superior gluteal nerve entrapment syndrome

Rask, Michael R.

doi:10.1002/mus.880030406

Cited by 55 publications

(18 citation statements)

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“…22,33 This is probably the most common cause of PS. 13,22,33 Certain anatomic variants, such as double piriformis and course variants of the sciatic nerve, posterior cutaneous femoral nerve, inferior gluteal nerve, and superior gluteal nerve 4,5,7,14,15,26,27,40,41,60,61 can predispose to PS. 7,26,34,44 The presence of PS is frequently overlooked; the differential diagnosis is presented in Table 2.…”

Section: Pathophysiology and Etiologymentioning

confidence: 99%

Brief review: Piriformis syndrome: etiology, diagnosis, and management

Jankovic¹,

Peng

Zundert

2013

Can J Anesth/J Can Anesth

130

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In this narrative review, we aim to provide the pathophysiology and diagnostic criteria of the piriformis syndrome (PS), an underdiagnosed cause of buttock and leg pain that can be difficult to treat. Based on existing evidence, frequencies of clinical features are estimated in patients reported to have PS. In view of the increasing popularity of ultrasound for intervention, the ultrasound-guided technique in the treatment of PS is described in detail. A literature search of the MEDLINEA (R) database was performed from January 1980 to December 2012 using the search terms e.g., " piriformis injection", " ultrasound guided piriformis injection", " botulinum toxin", "pain management", and different structures relevant in this review. There was no restriction on language. A review of the medical literature pertaining to PS revealed that the existence of this entity remains controversial. There is no definitive proof of its existence despite reported series with large numbers of patients. Piriformis syndrome continues to be a controversial diagnosis for sciatic pain. Electrophysiological testing and nerve blocks play important roles when the diagnosis is uncertain. Injection of local anesthetics, steroids, and botulinum toxin into the piriformis muscle can serve both diagnostic and therapeutic purposes. An ultrasound-guided injection technique offers improved accuracy in locating the piriformis muscle. Optimizing the therapeutic approach requires an interdisciplinary evaluation of treatment

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Section: Pathophysiology and Etiologymentioning

confidence: 99%

Brief review: Piriformis syndrome: etiology, diagnosis, and management

Jankovic¹,

Peng

Zundert

2013

Can J Anesth/J Can Anesth

130

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show abstract

“…Hypertrophy of the piriformis muscle has been suspected in some cases of superior gluteal nerve compression (Stewart, 2000). Indeed, one case of superior gluteal nerve palsy was resolved following surgical division of the piriformis muscle (Rask, 1980). Although rare, clinicians should consider muscular variations as a cause of superior gluteal nerve compression.…”

mentioning

confidence: 98%

A variant gluteal muscle

Tubbs

Salter

2006

Clinical Anatomy

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“…Injuries to the SGN have been described after needle injection into the posterior gluteal region, 4 after blunt trauma, 7 by entrapment within the pyriformis muscle, 5 and in association with lumbar lordosis and inadequate back stabilization. 1 No reports exist of SGN injuries from hip surgery or surgical positioning.…”

Section: Discussionmentioning

confidence: 99%