Anterior interosseous nerve palsy: spontaneous recovery in two patients

Gardner‐Thorpe, Christopher

doi:10.1136/jnnp.37.10.1146

Cited by 35 publications

(14 citation statements)

References 17 publications

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“…However, our findings suggest that these cases were suffering from brachial plexus neuritis [14]. Previous reports described conservative treatment with spontaneous recovery occurring up to 2 to 3 years after the onset of the palsy, and the results after conservative treatment are generally good [2,[8][9][10]12,14,16,18,21].…”

Section: Discussionmentioning

confidence: 44%

“…For electrodiagnosis of the AIN lesions, many previous reports described that the electromyogram revealed fibrillation or sharp wave, or neurogenic recruitment in innervated muscles [4][5][6][7][8][9][10][11][12][13][14][15]. However, there are a few nerve conduction measurements for AIN lesions reported up to the present [16][17][18][19][20][21][22][23]. We reported the importance of nerve conduction measurement at AIN lesions for ten patients in 2008 [24].…”

Section: Introductionmentioning

confidence: 75%

“…However a limited number of studies on nerve conduction have been reported [16][17][18][19][20][21][22][23]. Meya and Hacke [19] and Gardner-Thorpe [16] described PQ-CMAP latency with needle recording. Nakano et al [18] and Seror [21] reported PQ-CMAP using needle recording to derive normative values.…”

Section: Discussionmentioning

confidence: 99%

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Retrospective Analysis of Anterior Interosseous Nerve Lesions and Motor Nerve Conduction Measurements

Nobuta¹,

Sato²,

Itoi³

2017

J Neurol Neurophysiol

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Objective: Anterior interosseous nerve (AIN) lesions are rare and a few nerve conduction measurements have been reported. The purpose of this retrospective study was to assess the diagnostic value of the motor nerve conduction measurements for the AIN lesion and to investigate its electrodiagnostic features. Methods:Twenty-three patients with AIN lesion were reviewed after a mean follow-up of 13 months. Of these 23 cases, a complete palsy of flexor pollicis longus (FPL) and flexor digitorum profundus to the index finger (FDP1) was seen in five, and an isolated palsy of FPL in three and that of FDP1 in two, while pronator quadratus (PQ) was weak in twelve. The compound muscle action potential (CMAP) from the PQ muscle and the FPL muscle were recorded and analyzed. Twenty-two patients were treated conservatively and one underwent surgery.Results: Both PQ-CMAP and FPL-CMAP were recorded in all of the patients initially, and they all showed abnormality in PQ-and/or FPL-CMAP. Delayed latency and / or low amplitude were seen in 21 for PQ-CMAP and in 17 for FPL-CMAP. At the time of final follow-up, an improvement in the muscle strength of FPL, FDP1 and PQ was seen in 11 with the British Medical Research Council (MRC) grade 4 or better (complete recovery), whereas, partial recovery in 11 and unchanged in one. The decrease of amplitude in PQ-CMAP showed a significant difference between the normal PQ strength group and the weak PQ strength group. Conclusion:Recording and analysis of PQ-and FPL-CMAP are simple and safe and are important for the definite electrodiagnosis of AIN lesions. The data suggest that an axonal degeneration is main pathology.

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Section: Discussionmentioning

confidence: 44%

Section: Introductionmentioning

confidence: 75%

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Retrospective Analysis of Anterior Interosseous Nerve Lesions and Motor Nerve Conduction Measurements

Nobuta¹,

Sato²,

Itoi³

2017

J Neurol Neurophysiol

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“…The presentation of acute brachial plexus neuritis as a palsy of the anterior interosseus nerve (AIN) has already been published [9,10,12,18,26]. We describe another such case of an isolated AIN palsy where electromyographic (EMG) findings pointed to a proximal neuritis as the etiology of the lesion and where the conservative measures employed had a successful outcome.…”

Section: Introductionmentioning

confidence: 91%

Parsonage–Turner Syndrome—Case Report and Literature Review

Hussey

O’Brien

Regan

2007

Hand (New York, N,Y.)

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Parsonage-Turner syndrome is the term used to describe a neuritis involving the brachial plexus. It may present with symptoms of an isolated peripheral nerve lesion, although the pathology is thought to lie more proximally. A case describing an isolated anterior interosseus nerve palsy due to an acute brachial neuritis is presented where the electromyographic findings confirmed the diagnosis, but also demonstrated the coexistence of a dual pathology in the form of a cervical radiculopathy. The literature is reviewed regarding etiology, treatment, and prognosis.

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“…It emerges from the median nerve at the point where it crosses the pronator teres muscles, travels under the sublimis bridge of the flexor digitorum superficialis, becomes deep accompanying the volar interosseous artery along the anterior surface of the interosseus membrane, and terminates in the ptonator quadratus muscle. There are numerous etiological factors involved in the AIN syndrome: wounds in the volar aspect of the forearm [19], operations [15], tiffing injuries [19,22], compression of the forearm [3,5,26], ischemic paralysis of Wolkman [7], thrombosis of the deep veins of the forearm, anomalous radial artery, compression by anomalous muscles and fibrous bands [1, 4, 11, 13, 14, 18, 19, 22,-26], pressing against the upper border of the extensor digitorum superficialis [9]. Motor fibers are desfined to the radial half of the flexor digitorum profundus, the flexor polticis longus and the pronator quadratus.…”

Section: Spontaneous and One Traumatic) Review And Discuss Etiologicmentioning

confidence: 99%

Anterior interosseous nerve syndrome

Gessini¹,

Jandolo²,

Landucci³

et al. 1988

Ital J Neuro Sci

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Weakness of the flexor pollicis longus, flexor digitorum profundus and pronator quadratus is usually related to an isolated paralysis of the anterior interosseous nerve in the volar aspect of the forearm. The same syndrome may be caused by lesions of the median nerve in the supracondylar region and by involvement of the fibers assigned to the abovementioned nerve in the medial and lateral cords of the brachial plexus. We report 4 cases of the anterior interosseous nerve syndrome (3 spontaneous and one traumatic), review and discuss etiological factors, clinical features and electromyographic findings in the syndrome.

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Anterior interosseous nerve palsy: spontaneous recovery in two patients

Cited by 35 publications

References 17 publications

Retrospective Analysis of Anterior Interosseous Nerve Lesions and Motor Nerve Conduction Measurements

Retrospective Analysis of Anterior Interosseous Nerve Lesions and Motor Nerve Conduction Measurements

Parsonage–Turner Syndrome—Case Report and Literature Review

Anterior interosseous nerve syndrome

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