Entrapment neuropathy of common peroneal nerve by fabella: A case report

Table 1 Nerve conduction studies for both lower extremities

Nerve stimulated	Stimulation site	Recording site	Onset latency (ms)		Amplitude motor (mV), sensory (μV)		Velocity (m/s)
			Right	Left	Right	Left	Right	Left
Motor studies
Tibia	Ankle	AHB	4.3	4.7	13.6	14.2
	Popliteal fossa		12.7	13.6	8.9	9.4	47	44
Peroneal	Ankle	EDB	4.9	5.2	3.5	3.4
	Fibular head		11.3	11.7	2.9	2.9	46	45
	Popliteal fossa		13.4	13.8	2.4	2.7	49	47
Peroneal	Fibular head	TA	3.4	3.2	4.2	4.3
	Popliteal fossa		4.6	4.5	4.0	3.9	54	50
Peroneal	Fibular head	PL	2.6	2.7	3.11	6.5
	Popliteal fossa		6.3	4.4	1.11	5.9	221	47
Sensory studies
Sural	Calf	Posterior ankle	3.4	3.5	14.7	15.6	42	40
Superficial peroneal	Lateral calf	Ankle	3.3	3.4	15.7	16.1	42	41

¹Indicates abnormal data based on our reference values.

AHB: Abductor hallucis brevis; EDB: Extensor digitorum brevis; TA: Tibialis anterior; PL: Peroneus longus.