Ulnar-Nerve Compression Syndromes at and below the Wrist

Shea, Jennifer D.; McClain, Edward J.

doi:10.2106/00004623-196951060-00004

Cited by 334 publications

(133 citation statements)

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“…We have no certain explanation for this finding. Ulnar neuropathy can occur at the wrist just proximal to, within, or distal to Guyon's canal [30]. Ulnar nerve compression at Guyon's canal may be associated with an occupational disease in which the nerve is exposed to repetitive blunt trauma or high frequency vibration [31].…”

Section: Study Of Nerve Conduction In Computer Users O R I G I N a Lmentioning

confidence: 99%

Influence of the long term use of a computer on median, ulnar and radial sensory nerves in the wrist region

Bamaç¹,

Çolak²,

Dundar³

et al. 2014

IJOMEH

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Objectives: Repetitive microtrauma or overuse injuries may often affect upper extremities of the long term computer users. The aim of this study was to compare sensory nerve conduction velocities (SNCV) for median, radial and ulnar nerves in the wrist of computer users with the same parameters in controls who do not use computers regularly. Material and Methods: Twenty one male computer users (age: mean (M) = 28.3 years ± standard deviation (SD) = 7.5 years) and 21 male control subjects (age: M±SD = 24.1±4.6 years) were recruited for the study. Limb length and the perimeters of the dominant arm and forearm were measured for each subject. The neurophysiological study consisted of measuring sensory nerve conduction of the median, ulnar and radial nerves. Results: The sensory conduction velocities of both median and ulnar nerves were significantly delayed in the dominant arm of the computer users compared to the controls. In addition, sensory conduction velocity of the median nerve was significantly delayed in the dominant extremity of the computer users compared to their non-dominant extremity. Conclusions: This study shows that computer users have a tendency toward developing median and ulnar sensory nerve damage in the wrist region. Mechanism of delayed SNCV in the median and ulnar nerves may be due to sustained extension and ulnar deviation of the wrist during computer mouse use and typing. Reduced SNCV changes were more apparent on the dominant side of the median nerve. This may indicate the increased neural deficits related to an increased use of the dominant side. Further investigation is needed to determine how to reduce potential risk factors at this stage in order to prevent development of median or ulnar neuropathy in the long term computer users.

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Section: Study Of Nerve Conduction In Computer Users O R I G I N a Lmentioning

confidence: 99%

Influence of the long term use of a computer on median, ulnar and radial sensory nerves in the wrist region

Bamaç¹,

Çolak²,

Dundar³

et al. 2014

IJOMEH

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“…In addition, determination of the DUC-SNC is helpful to confirm or rule out proximal lesions of the ulnar nerve. Lesions of the ulnar nerve at the level of the elbow and wrist are highly frequent in clinical practice, and include trauma, compression, tumor, bone deformity, and occupational neuritis 9,10 .In studies of nerve conduction, the reference values indicate the probability that one given result is obtained from a normal subject or not 11 . Both technical 12 and physiologic 11,13 factors may influence the reference values.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

Dorsal ulnar cutaneous nerve conduction: reference values

Garibaldi

Nucci

2002

Arq. Neuro-Psiquiatr.

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-We investigated the reference values of the dorsal ulnar cutaneous nerve (DUC) sensory nerve conduction (SNC) in 66 healthy individuals. Measurements were processed using stimulating electrodes positioned between the ulnar bone and the flexor carpi ulnaris muscle, 11-13 cm proximal to the active electrode recording. Superficial recording electrodes were placed on the fourth intermetacarpal space. The mean sensory conduction velocity (SCV) in males was 63.7 -0.16 x age ± 3.36 m/s and in females was 57.7 ± 3.37 m/s. The mean sensory nerve action potential (SNAP) amplitude in males was 19.5 ± 10.7 µV and in females was 24.6 ± 5.8 µV. The mean SNAP duration was 0.96 ± 0.13 ms. No significant differences regarding the DUC-SCV, distal latency, and SNAP duration or amplitude were found between both sides of the same subject. The amplitude of the SNAP was higher in females than males. The effects of age on DUC-SCV were distinct for each gender.KEY WORDS: dorsal ulnar cutaneous nerve, nerve conduction, reference values, age, height, sex, temperature.Condução nervosa do nervo cutâneo ulnar dorsal: valores de referência Condução nervosa do nervo cutâneo ulnar dorsal: valores de referência Condução nervosa do nervo cutâneo ulnar dorsal: valores de referência Condução nervosa do nervo cutâneo ulnar dorsal: valores de referência Condução nervosa do nervo cutâneo ulnar dorsal: valores de referência RESUMO -Investigamos os valores de referência da condução nervosa sensitiva do nervo cutâneo ulnar dorsal em 66 indivíduos normais, por técnica de condução nervosa antidrômica. A velocidade de condução sensitiva (VCS) média, em homens foi 63,7 -0,16 x idade ± 3,36 m/s e nas mulheres 57,7 ± 3,37 m/s. A amplitude média do potencial de ação nervoso sensitivo (PANS) em homens foi 19,5 ± 10,7 µV e nas mulheres foi 24,6 ± 5,8 µV. A duração média do PANS foi 0,96 ± 0,13 ms. A dominância manual não interferiu nos valores da VCS, latência distal, amplitude e duração do PANS. Nas mulheres a amplitude do PANS foi maior do que nos homens. Os efeitos da idade na VCS foram distintos para cada sexo. PALAVRAS-CHAVE: nervo cutâneo ulnar dorsal, condução nervosa, valores de referência, altura, idade, sexo, temperatura.The dorsal ulnar cutaneous nerve (DUC), a branch of the ulnar nerve, leaves the main ulnar trunk approximately at the junction of the medial and distal thirds of the forearm 1 , then it takes a dorsal position at the wrist and continues on the dorsomedial region of the hand 2 . The purposes of studying the DUC sensory nerve conduction (SNC) include distinction between proximal and distal ulnar nerve lesions 3-5 , identification of isolated lesions of this nerve branch 5,6 , and investigation of the dorsomedial hand innervation 6,7 .The DUC is vulnerable to laceration, blunt trauma, and compression injury due to its superficial position 8 . In addition, determination of the DUC-SNC is helpful to confirm or rule out proximal lesions of the ulnar nerve. Lesions of the ulnar nerve at the level of the elbow and wrist are highly fre...

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“…Décrite pour la première fois par l'urologiste français Félix Guyon en 1861 [1]. Ses limites anatomiques bien précises conditionnant la symptomatologie clinique ont permis de diviser le canal de Guyon en trois zones [2,3].…”

Section: Issn: 2320-5407unclassified

“…Sa symptomatologie sera purement sensitive. Plusieurs étiologies peuvent être responsables du syndrome du canal de Guyon [3]. Les tumeurs à cellules géantes viennent au 2° rang après les kystes synoviaux.…”

Section: Issn: 2320-5407unclassified

Compression Du Nerf Ulnaire Au Poignet Par Une Tumeur a Cellules Geantes : A Propos D’un Cas Ulnar Nerve Compression in Guyon’s Canal by Giant Cell Tumor: Report a Case.

Margad¹,

Bousselmame²

2017

IJAR

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Ulnar-Nerve Compression Syndromes at and below the Wrist

Cited by 334 publications

References 0 publications

Influence of the long term use of a computer on median, ulnar and radial sensory nerves in the wrist region

Influence of the long term use of a computer on median, ulnar and radial sensory nerves in the wrist region

Dorsal ulnar cutaneous nerve conduction: reference values

Compression Du Nerf Ulnaire Au Poignet Par Une Tumeur a Cellules Geantes : A Propos D’un Cas Ulnar Nerve Compression in Guyon’s Canal by Giant Cell Tumor: Report a Case.

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