Bilateral common peroneal neuropathy due to rapid and marked weight loss after biliary surgery: A case report

Table 1 Nerve conduction study of the lower extremities

Stimulation nerve (Stimulation site)	Recording site	Latency1 (ms)	Amplitude2 (mV or μV)	Conduction velocity3 (m/s)
Deep peroneal nerve (motor)
Right ankle	EDB	4.55	2.2	33.2
Right fibular head	EDB	14.35	0.6
Right fibular head	TA	3.55	1.0	-
Left ankle	EDB	4.25	1.1	34.9
Left fibular head	EDB	14	0.1
Left fibular head	TA	4	0.3	-
Superficial peroneal nerve (sensory)
Right fibular head	Ankle	3.20	12.4	-
Light fibular head	Ankle	NR	NR	-

¹Reference value of deep peroneal nerve (stimulation at ankle) ≤ 4.8 ms, superficial peroneal nerve ≤ 3.3 ms.

²Reference value of deep peroneal nerve (stimulation at ankle) ≥ 2.1 mV, superficial peroneal nerve ≥ 2.7 μV.

³Reference value of deep peroneal nerve ≥ 40.3 m/s. EDB: Extensor digitorum brevis; TA: Tibialis anterior; AH: Abductor halluces; NR: No response.