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posterior interosseous neuropathy

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https://www.readbyqxmd.com/read/28594495/ulnar-tunnel-syndrome-radial-tunnel-syndrome-anterior-interosseous-nerve-syndrome-and-pronator-syndrome
#1
Adam B Strohl, David S Zelouf
In addition to the more common carpal tunnel and cubital tunnel syndromes, orthopaedic surgeons must recognize and manage other potential sites of peripheral nerve compression. The distal ulnar nerve may become compressed as it travels through the wrist, which is known as ulnar tunnel or Guyon canal syndrome. The posterior interosseous nerve may become entrapped in the proximal forearm as it travels through the radial tunnel, which results in a pain syndrome without motor weakness. The median nerve may become entrapped in the proximal forearm, which can result in a variety of symptoms...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28485505/posterior-interosseous-nerve-syndrome-after-pneumatic-hammer-use-an-uncommon-condition
#2
Bernardo Nunes, Francisco Serdoura, Luísa Vital, Manuel Seara, Rui Pinto
This case report presents a 27 year-old manual worker with right wrist extension deficit after pneumatic hammer handling. MRI and electromyographic studies revealed partial compromise of the posterior interosseous nerve (PIN) proximal to the branch for the extensor digitorum communis. The patient enrolled a 6-week rehabilitation period and recovered without remaing symptoms. PIN syndrome has mostly been associated with compressive neuropathies of the upper limb, but has seldom been reported in labor contexts...
July 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28198531/superficial-brachial-artery-a-possible-cause-for-idiopathic-median-nerve-entrapment-neuropathy
#3
Pilani Nkomozepi, Nkosi Xhakaza, Elaine Swanepoel
Nerve entrapment syndromes occur because of anatomic constraints at specific locations in both upper and lower limbs. Anatomical locations prone to nerve entrapment syndromes include sites where a nerve courses through fibro-osseous or fibromuscular tunnels or penetrates a muscle. The median nerve (MN) can be entrapped by the ligament of Struthers; thickened biceps aponeurosis; between the superficial and deep heads of the pronator teres muscle and by a thickened proximal edge of flexor digitorum superficialis muscle...
February 15, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27902538/ulnar-tunnel-syndrome-radial-tunnel-syndrome-anterior-interosseous-nerve-syndrome-and-pronator-syndrome
#4
Adam B Strohl, David S Zelouf
In addition to the more common carpal tunnel and cubital tunnel syndromes, orthopaedic surgeons must recognize and manage other potential sites of peripheral nerve compression. The distal ulnar nerve may become compressed as it travels through the wrist, which is known as ulnar tunnel or Guyon canal syndrome. The posterior interosseous nerve may become entrapped in the proximal forearm as it travels through the radial tunnel, which results in a pain syndrome without motor weakness. The median nerve may become entrapped in the proximal forearm, which can result in a variety of symptoms...
January 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/27683851/posterior-interosseous-neuropathy-supinator-syndrome-vs-fascicular-radial-neuropathy
#5
Philipp Bäumer, Henrich Kele, Annie Xia, Markus Weiler, Daniel Schwarz, Martin Bendszus, Mirko Pham
OBJECTIVE: To investigate the spatial pattern of lesion dispersion in posterior interosseous neuropathy syndrome (PINS) by high-resolution magnetic resonance neurography. METHODS: This prospective study was approved by the local ethics committee and written informed consent was obtained from all patients. In 19 patients with PINS and 20 healthy controls, a standardized magnetic resonance neurography protocol at 3-tesla was performed with coverage of the upper arm and elbow (T2-weighted fat-saturated: echo time/repetition time 52/7,020 milliseconds, in-plane resolution 0...
November 1, 2016: Neurology
https://www.readbyqxmd.com/read/27177178/posterior-interosseous-nerve-discontinuity-due-to-compression-by-lipoma-report-of-2-cases
#6
Andrés A Maldonado, Benjamin M Howe, Robert J Spinner
Paralysis of the posterior interosseous nerve (PIN) secondary to compression is a rare clinical condition. Entrapment neuropathy may occur at fibrous bands at the proximal, middle, or distal edge of the supinator. Tumors are a relatively rare but well-known potential cause. The authors present 2 cases of PIN lesions in which compression by a benign lipoma at the level of the elbow resulted in near transection (discontinuity) of the nerve. They hypothesize a mechanism-a "sandwich effect"-by which compression was produced from below by the mass and from above by a fibrous band in the supinator muscle (i...
May 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27142825/delayed-diagnosed-intermuscular-lipoma-causing-a-posterior-interosseous-nerve-palsy-in-a-patient-with-cervical-spondylosis-the-priceless-value-of-the-clinical-examination-in-the-technological-era
#7
R Colasanti, M Iacoangeli, A Di Rienzo, M Dobran, L Di Somma, N Nocchi, M Scerrati
BACKGROUND: Posterior interosseous nerve (PIN) palsy may present with various symptoms, and may resemble cervical spondylosis. CASE REPORT: We report about a 59-year-old patient with cervical spondylosis which delayed the diagnosis of posterior interosseous nerve (PIN) palsy due to an intermuscular lipoma. Initial right hand paraesthesias and clumsiness, together with MR findings of right C5-C6 and C6-C7 foraminal stenosis, misled the diagnostic investigation. The progressive loss of extension of all right hand fingers brought to detect a painless mass compressing the PIN...
January 2016: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/27099747/posterior-interosseous-neuropathy-the-diagnostic-benefits-of-a-multimodal-approach-to-investigation
#8
Andrew Robert Lawley, Shouvik Saha, Francesco Manfredonia
Posterior interosseous neuropathy should be considered in patients presenting with finger and wrist drop and no sensory deficit. Clinical and electrophysiological assessments are key to a diagnosis. MRI may disclose etiological information not available to clinical or neurophysiological assessment, and should be thought as a complementary diagnostic tool.
April 2016: Clinical Case Reports
https://www.readbyqxmd.com/read/26770861/imaging-of-posterior-interosseous-neuropathy-following-distal-biceps-repair-a-report-of-3-cases
#9
Darren Fitzpatrick, Catherine Petchprapa, Leon Rybak
Three cases of PIN palsy following biceps repair are presented with clinical and imaging correlation. The imaging findings in these cases will be discussed and the orthopedic literature, as regards possible surgical approaches and technical factors believed to predispose to or prevent this complication, will be reviewed. It is important for radiologists to serve as consultants in these uncommon but sometimes devastating complications, helping to quickly and accurately recognize the imaging findings corresponding to the clinical symptoms and aiding the surgeon in diagnosis and treatment by identifying the possible causes and sites of nerve compression...
2015: Case Reports in Radiology
https://www.readbyqxmd.com/read/26713154/neuralgic-amyotrophy-manifesting-as-mimicking-posterior-interosseous-nerve-palsy
#10
Jin Seo Yang, Yong Jun Cho, Suk Hyung Kang, Eun Hi Choi
The upper trunk of the brachial plexus is the most common area affected by neuralgic amyotrophy (NA), and paresis of the shoulder girdle muscle is the most prevalent manifestation. Posterior interosseous nerve palsy is a rare presentation in patients with NA. It results in dropped finger on the affected side and may be misdiagnosed as entrapment syndrome or compressive neuropathy. We report an unusual case of NA manifested as PIN palsy and suggest that knowledge of clinical NA phenotypes is crucial for early diagnosis of peripheral nerve palsies...
November 2015: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/26674960/assessment-of-the-utility-of-ultrasonography-with-high-frequency-transducers-in-the-diagnosis-of-postoperative-neuropathies
#11
Berta Kowalska
The primary aim of this paper was to assess the relevance of high-frequency ultrasound examination in qualifying patients for either surgical or conservative treatment of postoperative peripheral neuropathies. The study was conducted in a group of 71 patients who in 2009-2011 were referred to ultrasound examinations due to a clinical suspicion of peripheral neuropathies. For the purposes of this analysis, the suspected postoperative neuropathies were divided into three groups: after surgical treatment of the median nerve (1), after surgical treatment of the ulnar nerve (2) and other postoperative neuropathies (3)...
June 2015: Journal of Ultrasonography
https://www.readbyqxmd.com/read/26674101/ultrasound-assessment-on-selected-peripheral-nerve-pathologies-part-i-entrapment-neuropathies-of-the-upper-limb-excluding-carpal-tunnel-syndrome
#12
REVIEW
Berta Kowalska, Iwona Sudoł-Szopińska
Ultrasound (US) is one of the methods for imaging entrapment neuropathies, post-traumatic changes to nerves, nerve tumors and postoperative complications to nerves. This type of examination is becoming more and more popular, not only for economic reasons, but also due to its value in making accurate diagnosis. It provides a very precise assessment of peripheral nerve trunk pathology - both in terms of morphology and localization. During examination there are several options available to the specialist: the making of a dynamic assessment, observation of pain radiation through the application of precise palpation and the comparison of resultant images with the contra lateral limb...
September 2012: Journal of Ultrasonography
https://www.readbyqxmd.com/read/26674099/assessment-of-the-utility-of-ultrasonography-with-high-frequency-transducers-in-the-diagnosis-of-entrapment-neuropathies
#13
Berta Kowalska
The primary aim of this paper was to assess the relevance of high-frequency ultra-sound examination in qualifying patients for either surgical or conservative treatment of peripheral entrapment neuropathies. The study was conducted in a group of 55 patients aged 7-83 (mean age 43.6), including 28 males and 27 females, who in 2009-2011 were referred to an ultrasound examination due to a clinical suspicion of entrapment neuropathies. For the purposes of the analysis, the patients were divided into four groups: carpal tunnel syndrome (1), ulnar nerve entrapment (2) (cubital tunnel syndrome and Guyon's canal syndrome), posterior interosseous nerve syndrome (3) and other entrapment neuropathies (4)...
December 2014: Journal of Ultrasonography
https://www.readbyqxmd.com/read/26206065/ultrasound-combined-with-electrodiagnosis-improves-lesion-localization-and-outcome-in-posterior-interosseous-neuropathy
#14
Yevgeniya Dvorkin Wininger, Neilly A Buckalew, Robert A Kaufmann, Michael C Munin
INTRODUCTION: Posterior interosseous nerve (PIN) syndrome is a rare compression neuropathy. Electrodiagnostic studies (EDx) combined with neuromuscular ultrasound (US) enable precise lesion localization and may improve patient outcome. METHODS: In 4 patients with finger extension weakness, US was used to accurately localize concentric electromyographic (EMG) needle placement in PIN muscles and to visualize the lesion site. RESULTS: EMG with US guidance showed decreased recruitment with abnormal configuration in PIN muscles...
December 2015: Muscle & Nerve
https://www.readbyqxmd.com/read/26201950/nerve-ultrasound-identifies-abnormalities-in-the-posterior-interosseous-nerve-in-patients-with-proximal-radial-neuropathies
#15
Alexander R Dietz, Robert C Bucelli, Alan Pestronk, Craig M Zaidman
INTRODUCTION: The radial nerve and posterior interosseous nerve (PIN) are prone to injury at multiple sites. Electrodiagnostic (EDx) studies may only identify the most proximal lesion. Nerve ultrasound could augment EDx by visualizing additional pathology. METHODS: This investigation was a retrospective examination of ultrasound and EDx from 26 patients evaluated for posterior cord/radial/PIN lesions. RESULTS: Eighteen of 26 patients had abnormalities on EDx (15 radial, 2 PIN, 1 posterior cord)...
March 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/25932432/severe-persistent-painful-neuropathy-relieved-immediately-after-surgical-release-case-of-neurostenalgia-of-the-radial-nerve
#16
Jung-Gyoo Park, Hannae Jo, Hee-Won Park, Sora Baek
Neurostenalgia is a neuropathic pain that results from continuing irritation of an anatomically intact nerve by a noxious agent. The pain resolves promptly after surgical release of the nerve. The authors report a case of neurostenalgia of the radial nerve in which the posterior interosseous branch was compressed at the arcade of Frohse, presenting with severe arm and elbow pain. The pain was immediately relieved after surgical release of the nerve.
April 2015: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/25697815/triple-hourglass-like-fascicular-constriction-of-the-posterior-interosseous-nerve-a-rare-cause-of-pin-syndrome
#17
Alexander Loizides, Eva-Maria Baur, Michaela Plaikner, Hannes Gruber
Supinator syndrome or posterior interosseous nerve (PIN) syndrome is a compression neuropathy of the deep branch of the radial nerve in the region of the Arcade of Frohse. An extremely rare cause of an acute onset supinator syndrome is the hourglass-like fascicular constriction of the posterior interosseous nerve due to torsion. To our knowledge, only a limited number of cases which describe the sonographic appearance of fascicular torsions are known in the literature. We present a rare case of a supinator syndrome associated with hourglass-like constrictions of the PIN diagnosed by means of sonography...
May 2015: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/25523623/autophagy-in-the-posterior-interosseous-nerve-of-patients-with-type-1-and-type-2-diabetes-mellitus-an-ultrastructural-study
#18
Ayman A M Osman, Lars B Dahlin, Niels O B Thomsen, Simin Mohseni
AIMS/HYPOTHESIS: We addressed the question of whether the autophagy pathway occurs in human peripheral nerves and whether this pathway is associated with peripheral neuropathy in diabetes mellitus. METHODS: By using electron microscopy, we evaluated the presence of autophagy-related structures and neuropathy in the posterior interosseous nerve of patients who had undergone carpal tunnel release and had type 1 or type 2 diabetes mellitus, and in patients with no diabetes (controls)...
March 2015: Diabetologia
https://www.readbyqxmd.com/read/25170672/restoration-of-hand-function-in-c7-t1-brachial-plexus-palsies-using-a-staged-approach-with-nerve-and-tendon-transfer
#19
Cheng-Gang Zhang, Zhen Dong, Yu-Dong Gu
Brachial plexus palsies of C7-T1 result in the complete loss of hand function, including finger and thumb flexion and extension as well as intrinsic muscle function. The task of reanimating such a hand remains challenging, and so far there has been no reliable neurological reconstructive method for restoring hand function. The authors aimed to establish a reliable strategy to reanimate the paralyzed hand. Two patients had sustained C7-T1 complete lesions. In the first stage of the operative procedure, a supinator motor branch to posterior interosseous nerve transfer was performed with brachialis motor branch transfer to the median nerve to restore finger and thumb extension and flexion...
November 2014: Journal of Neurosurgery
https://www.readbyqxmd.com/read/25038972/radial-tunnel-syndrome-results-of-surgical-decompression-by-a-postero-lateral-approach
#20
Clarisa Simon Perez, Belén García Medrano, Jose Ignacio Rodriguez Mateos, Begoña Coco Martin, Omar Faour Martin, Miguel Angel Martin Ferrero
PURPOSE: Our purpose is to describe the results obtained in surgical treatment of a series of patients with symptoms of radial tunnel syndrome. METHODS: We performed a prospective study on 42 patients (43 limbs) operated for radial tunnel syndrome between 1996 and 2010, using a posterior-external approach. RESULTS: Using the Roles and Maudsley criteria, 21 patients had excellent results (48.8%), 16 good (37.2%) and six fair results (13.9%)...
October 2014: International Orthopaedics
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