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Ultrasonographic findings of posterior interosseous nerve syndrome
Ultrasonography ; : 363-369, 2017.
Artigo em Inglês | WPRIM | ID: wpr-731013
ABSTRACT

PURPOSE:

The purpose of this study was to evaluate the ultrasonographic findings associated with posterior interosseous nerve (PIN) syndrome.

METHODS:

Approval from the Institutional Review Board was obtained. A retrospective review of 908 patients' sonographic images of the upper extremity from January 2001 to October 2010 revealed 10 patients suspicious for a PIN abnormality (7 male and 3 female patients; mean age of 51.8±13.1 years; age range, 32 to 79 years). The ultrasonographic findings of PIN syndrome, including changes in the PIN and adjacent secondary changes, were evaluated. The anteroposterior diameter of the pathologic PIN was measured in eight patients and the anteroposterior diameter of the contralateral asymptomatic PIN was measured in six patients, all at the level immediately proximal to the proximal supinator border. The size of the pathologic nerves and contralateral asymptomatic nerves was compared using the Mann-Whitney U test.

RESULTS:

Swelling of the PIN proximal to the supinator canal by compression at the arcade of Fröhse was observed in four cases. Swelling of the PIN distal to the supinator canal was observed in one case. Loss of the perineural fat plane in the supinator canal was observed in one case. Four soft tissue masses were noted. Secondary denervation atrophy of the supinator and extensor muscles was observed in two cases. The mean anteroposterior diameter of the pathologic nerves (n=8, 1.79±0.43 mm) was significantly larger than that of the contralateral asymptomatic nerves (n=6, 1.02±0.22 mm) (P=0.003).

CONCLUSION:

Ultrasonography provides high-resolution images of the PIN and helps to diagnose PIN syndrome through visualization of its various causes and adjacent secondary changes.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Nervo Radial / Atrofia / Estudos Retrospectivos / Ultrassonografia / Comitês de Ética em Pesquisa / Extremidade Superior / Denervação / Músculos / Síndromes de Compressão Nervosa Tipo de estudo: Estudo diagnóstico / Estudo observacional Limite: Feminino / Humanos / Masculino Idioma: Inglês Revista: Ultrasonography Ano de publicação: 2017 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Nervo Radial / Atrofia / Estudos Retrospectivos / Ultrassonografia / Comitês de Ética em Pesquisa / Extremidade Superior / Denervação / Músculos / Síndromes de Compressão Nervosa Tipo de estudo: Estudo diagnóstico / Estudo observacional Limite: Feminino / Humanos / Masculino Idioma: Inglês Revista: Ultrasonography Ano de publicação: 2017 Tipo de documento: Artigo