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KMID : 0361420150390010047
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Journal of Korean Academy of Rehabilitation Medicine
2015 Volume.39 No. 1 p.47 ~ p.51
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Ultrasound-Guided Lateral Femoral Cutaneous Nerve Conduction Study
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:Park Bum-Jun
:Joeng Eui-Soo/:Choi Jun-Kyu/:Kang Seok/:Yoon Joon-Shik/:Yang Seung-Nam
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Abstract
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Objective: To verify the utility of the lateral femoral cutaneous nerve (LFCN) ultrasound-guided conduction technique compared to that of the conventional nerve conduction technique.
Methods: Fifty-eight legs of 29 healthy participants (18 males and 11 females; mean age, 42.7±14.9 years) were recruited. The conventional technique was performed bilaterally. The LFCN was localized by ultrasound. Cross-sectional area (CSA) of the LFCN and the distance between the anterior superior iliac spine (ASIS) and the LFCN was measured. The nerve conduction study was repeated with the corrected cathode location. Sensory nerve action potential (SNAP) amplitudes of the LFCN were recorded and compared between the ultrasound-guided and conventional techniques.
Results: Mean body mass index of the participants was 23.7±3.5 kg/m2, CSA was 4.2±1.9 mm2, and the distance between the ASIS and LFCN was 5.6±1.7 mm. The mean amplitude values were 6.07±0.52 μV and 6.66±0.54 μV using the conventional and ultrasound-guided techniques, respectively. The SNAP amplitude of the LFCN using the ultrasound-guided technique was significantly larger than that recorded using the conventional technique.
Conclusion: Correcting the stimulation position using the ultrasound-guided technique helped obtain increased SNAP amplitude.
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KEYWORD
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Ultrasound-guided, Nerve conduction study, Lateral femoral cutaneous nerve, Ultrasonography, Lumbosacral plexus
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