Role of superficial peroneal sensory potential and high-resolution ultrasonography in confirmation of common peroneal mononeuropathy at the fibular neck

Table 2 Comparing motor and sensory nerve conduction studies as well as ultrasonographic findings between patients and controls

Variable	Motor nerve conduction findings (deep peroneal nerve)				Sensory nerve conduction findings (superficial peroneal nerve)		Ultrasonography
Groups	Distal CMAP amplitude (mv)	CMAP at popliteal fossa amplitude (mv)	CV across the FN (m/s)	Latency (ms)	Latency (ms)	SNAP amplitude (μv)	CSA at fibular neck (mm²)
Patients (n = 70)	3.87 ± 1.14	2.9 ± 1.2	35.1 ± 3.7	6.18 ± 0.87	4.08 ± 1.94	3.18 ± 1.11	13 ± 1
Controls (n = 70)	3.78 ± 1.59	3.8 ± 1.4	44.46 ± 4.26	6.23 ± 0.75	4.04 ± 0.06	6.21 ± 0.01	9 ± 1
p value	0.701	0.000^a	0.000^a	0.716	0.863	0.000^a	0.000^a

CMAP compound motor action potential, CV conduction velocity, FN fibular neck, SNAP sensory nerve action potential, CSA cross-sectional area
^aSignificant