Neuropathic pain in primary knee osteoarthritis patients: correlation with physical function, quality of life, disease severity, and serum beta nerve growth factor levels

Egyptian Rheumatology and Rehabilitation

Table 3 The frequency of responses for individual items of LANSS questionnaire among OA patients

	OA patients (n=70)		t	P
	Patients with neuropathic pain (n=27)	Patients with non-neuropathic pain (n=43)	t	P
Knee pain quality
Pins and needles, tingling or pricking	25 (35.7%)	20 (28.6%)	15.340	<0.001*
Autonomic skin changes	18 (25.7%)	28 (40%)	0.018	0.894
Sensitive to light touch	18 (25.7%)	24 (34.3%)	0.814	0.367
Sudden pain/electric shocks	12 (17.1%)	10 (14.3%)	3.455	0.063
Burning pain	24 (34.3%)	21 (30%)	11.588	<0.001*
Sensory testing
Pins and needles, tingling or burning on rubbing on painful area	10 (14.3%)	6 (8.6%)	5.012	0.025*
Numbness or tenderness felt when pressing on painful area	17 (24.3%)	20 (28.6%)	1.801	0.180

Values are labeled as n (%). LANSS Leeds assessment neuropathic pain symptoms and signs, OA osteoarthritis
*Significant P value ≤ 0.05