Table 1.

Patient characteristics.

No.	Main diagnosis	Age	Sex	Side	Painful sites	Radiating pain	Duration
1	Central neuropathic pain	60	M	B	From low back to legs	+	11 years
2	CRPS	75	F	R	From low back to leg	+	5 years
3	CRPS	27	F	B	Feet	+	5 years
4	CRPS	43	F	R	Lower leg	−	4 years
5	CRPS	29	F	L	Lower leg	+	5 months
6	LSS	73	F	L B	From buttock to leg, shoulder Hands	+	16 years
7	LSS	72	F	B L	From low back to buttock Shoulder	+	3 years
8	Lumbar disk herniation	55	M	B	From low back to legs	+	5 years
9	CRPS	80	F	L	Lower leg	+	14 years
10	FM	61	F	B	Everywhere	+	27 years
11	FM	50	F	B	Everywhere	+	1 years
12	Cervical spondylosis	57	M	L	Neck	−	4 years
mean ± SD		age: 56.8 ± 17.3					duration: 7.95 ± 7.75

CRPS: Complex regional pain syndrome; LSS: lumbar spinal stenosis; FM: fibromyalgia.