Entrapment of the suprascapular nerve at the spinoglenoid notch

Aiello, I.; Serra, G; Traina, Gian Carlo; Tugnoli, V.

doi:10.1002/ana.410120320

Cited by 141 publications

(56 citation statements)

References 8 publications

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“…The relatively high rate of 49% of remaining muscle atrophy in this series suggests an irreversible damage to motor nerve fibers [1,4,6,8,9,15,17,20,26,28,29,39,41]. The majority reported, however, on pain resolution [1,4,5,9,11,15,17,18,21,25,28,29,31,34,30,39].…”

Section: Discussionmentioning

confidence: 71%

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Suprascapular nerve entrapment. A meta-analysis

Zehetgruber

Noske

Lang

et al. 2002

International Orthopaedics

146

106

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We performed a review of the literature between 1959 and 2001. We found 88 cases of suprascapular nerve entrapment, which fulfilled our inclusion criteria. Suprascapular nerve entrapment is rare and mainly occurs in patients under 40 years of age. Males are more likely to suffer from a ganglion compressing the nerve than females. If the patient's history reveals a trauma, it is more likely that the ligament is compromising the nerve. Ganglions usually cause isolated infraspinatus atrophy, whereas a combined atrophy of the supra-and infraspinatus muscles is more common in cases in which the nerve is compressed by the ligament.Résumé Nous avons fait une révision de la littérature entre 1959 et 2001 et avons trouvé 88 cas de compression du nerf suprascapulaire remplissant nos critères d'inclusion. La compression du nerf suprascapulaire est rare et se produit surtout chez des patients de moins de 40 ans. Il est probable que les hommes ont, plus volontiers que les femmes, une compression ganglionnaire qui comprime le nerf. Si l'histoire du malade révèle un traumatisme, il est vraisemblable que le ligament est en cause. Habituellement les ganglions causent une atrophie isolée du muscle infraspinatus, alors qu'une atrophie combinée des muscles supra -et infraspinatus est plus commune lorsque le nerf est comprimé par le ligament.

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Section: Discussionmentioning

confidence: 71%

“…The majority reported, however, on pain resolution [1,4,5,9,11,15,17,18,21,25,28,29,31,34,30,39]. Unfortunately, the clinical outcome was stated in less than 50% of the studies.…”

Section: Discussionmentioning

confidence: 99%

Suprascapular nerve entrapment. A meta-analysis

Zehetgruber

Noske

Lang

et al. 2002

International Orthopaedics

146

106

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“…A ganglion in the spinoglenoid notch is another cause of entrapment of the suprascapular nerve. 8,16,18,19,21,27 More rarely, a ganglion extending into the supraspinatus fossa has also been reported to compress the nerve in the suprascapular notch. 7,28 In the present series the patients who were operated on within six months of the onset of symptoms had better recovery than those who had the operation after more than six months.…”

Section: Discussionmentioning

confidence: 99%

“…Many publications on the subject have appeared in the literature as a result of the increasing use of MRI. [18][19][20][21] We present a series of 35 patients who had entrapment of the suprascapular nerve, treated by surgical release.…”

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confidence: 99%

Entrapment of the suprascapular nerve

Fabre

Piton

Leclouerec

et al. 1999

The Journal of Bone and Joint Surgery. British volume

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Operative release for entrapment of the suprascapular nerve was carried out in 35 patients. They were assessed at an average of 30 months (12 to 98) after operation using the functional shoulder score devised by Constant and Murley. The average age at the time of surgery was 40 years (17 to 67). Entrapment was due to injury in ten patients and no cause was found in three; 34 had diffuse posterolateral shoulder pain. The strength of abduction was reduced in all the patients.The average Constant score, unadjusted for age or gender, before operative release was 47% (28 to 53). In 25 of the patients both the supraspinatus and infraspinatus muscles were atrophied and seven had isolated atrophy of the infraspinatus muscle. The average conduction time from Erb's point to the supraspinatus muscle and to the infraspinatus muscle was 5.7 ms (2.8 to 12.8) and 7.4 ms (3.4 to 13.4), respectively. In two patients MRI revealed a ganglion in the infraspinatus fossa and, in another, a complete rupture of the rotator cuff.The average time from the onset of symptoms to operation was ten months (3 to 36). A posterior approach was advocated. The average Constant score, after operative release, unadjusted for age or gender was 77% (35 to 91). The overall result was excellent in ten of the patients, very good in seven, good in 14, fair in two, and poor in two. The symptomatic and functional outcome in our series confirmed the usefulness and safety of operative decompression for entrapment of the suprascapular nerve.J Bone Joint Surg [Br] 1999;81-B:414-9.

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“…Compression or traction of the suprascapular nerve in these regions can result from space-occupying lesions, traumatic injury, viral syndrome, repetitive use, or perioperative injury, or it can occur idiopathically. 8,[13][14][15][16][17][18][19][20] Repetitive scapular movements may cause traction or tethering of the nerve, because the suprascapular nerve is fixed proximally at the cervical spine and distally at the scapula as it passes through the suprascapular notch The differential diagnosis of patients with suprascapular neuropathy is presented and illustrated using 5 patients with this condition. …”

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confidence: 99%

Diagnosing Suprascapular Neuropathy in Patients With Shoulder Dysfunction: A Report of 5 Cases

2004

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Background and Purpose. Suprascapular neuropathy, resulting in shoulder pain and weakness, is frequently misdiagnosed. The consequences of misdiagnosis can include inappropriate physical rehabilitation or surgical procedures. The purpose of this case report is to describe the differential diagnosis of suprascapular neuropathy. Case Descriptions. Five patients were initially diagnosed with subacromial impingement syndrome and referred for physical therapy. Physical therapist examination findings were consistent with subacromial impingement syndrome and suprascapular neuropathy. Subsequent electrophysiologic testing confirmed the diagnosis of suprascapular neuropathy in all 5 patients. Discussion. The differential diagnosis of patients with suprascapular neuropathy includes subacromial impingement syndrome, rotator cuff pathology, C5-6 radiculopathy, and upper trunk brachial plexopathy. The diagnostic process and a S uprascapular neuropathy (SSN) may be overlooked or mistaken for other conditions such as subacromial impingement syndrome (SAIS), rotator cuff injury, cervical radiculopathy, or brachial plexopathy. [1][2][3][4][5][6] The signs and symptoms of SSN include shoulder weakness, atrophy, and diffuse aching or burning pain at the shoulder, which often includes the posterolateral aspect of the shoulder in the region of the scapula. [1][2][3][4][5]7 However, painless cases, which involved denervation of the infraspinatus muscle only, also have been reported. 8 Although SSN is uncommon, it should be considered in the differential diagnosis of patients with shoulder pain and weakness. [1][2][3][4][5]7 Suprascapular neuropathy has been reported in 10 patients (0.4%) in a series of 2,520 patients with shoulder pain, 6 but some authors 7 have speculated that this condition is so frequently misdiagnosed that it is probably the cause in 1% to 2% of patients with shoulder pain. Of 10 patients with SSN reported by Post and Mayer, 6 8 patients were initially misdiagnosed, leading to inappropriate intervention. Two patients were managed surgically for SAIS with acromioplasty, 1 patient was managed surgically with C4 -5 diskectomy, 3 patients were managed with cervical traction, 1 patient was managed with a cervical soft collar, and 1 patient was managed for acromioclavicular joint sprain. Six of the 10 patients were managed with unspecified physical therapy interventions. In a later case series of 39 patients with SSN, 18 patients were managed with 30 inappropriate surgical procedures for SAIS, the cervical spine, and thoracic outlet syndrome. 5 In another series of 27 patients, 6 patients underwent surgical procedures for thoracic outlet syndrome and 3 patients underwent cervical diskectomies without relief prior to their diagnosis of SSN. 3 The suprascapular nerve is a mixed motor and sensory nerve arising from the upper trunk of the brachial plexus with contributions primarily from the anterior primary rami of the C5 and C6 nerve roots. It then courses posteroinferiorly beneath the superior transverse scapular lig...

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Entrapment of the suprascapular nerve at the spinoglenoid notch

Abstract: A 58‐Year‐old fencing instructor developed selective denervation of the infraspinatus muscle. It was found to be caused by entrapment of the suprascapular nerve at the spinoglenoid notch due to a hypertrophied inferior transverse scapular ligament.

Cited by 141 publications

References 8 publications

Suprascapular nerve entrapment. A meta-analysis

Suprascapular nerve entrapment. A meta-analysis

Entrapment of the suprascapular nerve

Diagnosing Suprascapular Neuropathy in Patients With Shoulder Dysfunction: A Report of 5 Cases

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