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KMID : 0860920110130010018
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Journal of the Korean Association EMG-Electrodiagnostic Medicine
2011 Volume.13 No. 1 p.18 ~ p.24
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Diagnostic Value of Tinel Sign and Phalen Test in Patients with Tingling Sensation on Hands: An Electrophysiologic Analysis
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Lee Hye-Jin
Moon Hyun-Im
Kwon Hee-Kyu
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Abstract
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Objectives:To evaluate the diagnostic value of Tinel sign and Phalen test through electrophysiologic
analysis in patients with numb hands.
Methods:Electrophysiologic findings were analyzed retrospectively in 430 patients with numb hands.
144 hands were diagnosed as normal, 341 as CTS, and 141 as cervical radiculopathy. The severity of CTS
was classified into mild, moderate, severe. Positive rates of Tinel sign and Phalen test were compared in
each group and the rates were analyzed according to the electrophysiologic severity of CTS.
Results:Positive rate of Tinel sign and Phalen test were 35% and 20% in normal, 59%, 54% in CTS and
31%, 15% in cervical radiculopathy. Positive rate of Tinel sign was significantly higher in the severe CTS
group (p<0.001). Phalen test revealed significant lower positive rate in mild group (p=0.01).
Conclusions:The positive rates of Tinel sign and Phalen test were highest in CTS and had a diagnostic
value of predicting severity. However, there are possibilities of false positive tests since patients with normal
electrophysioloigc test and cervical radiculopathy showed have positive results in Tinel sign and
Phalen test.
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KEYWORD
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Tinel sign , Phalen test , Carpal tunnel syndrome , Sensitivity , Specificity
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