Effectiveness of ultrasonography and nerve conduction studies in the diagnosing of carpal tunnel syndrome: clinical trial on accuracy.
BMC Musculoskelet Disord
; 19(1): 115, 2018 04 12.
Article
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| MEDLINE
| ID: mdl-29649998
ABSTRACT
BACKGROUND:
The aim of this study was to evaluate the effectiveness of two diagnostic tests routinely used for diagnosing carpal tunnel syndrome (CTS)-ultrasonography (US) and nerve conduction studies (NCS)-by comparing their accuracy based on surgical results, with the remission of paresthesia as the reference standard.METHODS:
We enrolled 115 patients, all of the female gender with a high probability of a clinical diagnosis of CTS. All patients underwent US and NCS for a diagnosis and subsequent surgical treatment. As a primary outcome, the accuracy of the US and NCS diagnoses was measured by comparing their diagnoses compared with those determined by the surgical outcomes. Their accuracy was secondarily evaluated based on before and after scores of the Boston Carpal Tunnel Questionnaire (BCTQ).RESULTS:
Overall, 104 patients (90.4%) were diagnosed with CTS by the surgical reference standard, 97 (84.3%) by NCS, and 90 (78.3%) by US. The concordance of NCS and surgical treatment (p < 0.001; kappa = 0.648) was superior to that of US and surgical treatment (p < 0.001; kappa = 0.423). The sensitivity and specificity of US and NCS were similar (p = 1.000 and p = 0.152, respectively McNemar's test). The BCTQ scores were lower after surgery in patients diagnosed by both US and NCS (p < 0.001and p < 0.001, respectively analysis of variance).CONCLUSIONS:
US and NCS effectively diagnosed CTS with good sensitivity but were not effective enough to rule out a suspicion of CTS. TRIAL REGISTRATION This study was registered at September, 10 th, 2015, and the registration number was NCT02553811 .Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Síndrome del Túnel Carpiano
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Técnicas de Diagnóstico Neurológico
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
Límite:
Adult
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Aged
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
BMC Musculoskelet Disord
Asunto de la revista:
FISIOLOGIA
/
ORTOPEDIA
Año:
2018
Tipo del documento:
Article
País de afiliación:
Brasil