Table 4

Clinical assessment using visual analog scale and Oswestry Disability Index.

		With Intradiscal Leakage (n=20)	Without Intradiscal Leakage (n=104)
Visual analogue scale	preoperative	7.15±0.93	7.17±1.04
	pos	2.30±0.73 ^{^a}	2.36±0.84^{^a}
	last	2.80±0.62^{^a}	2.60±0.65 ^{^a}
Oswestry disability index	preoperative	73.80±12.31	69.90±13.69
	pos	28.50±4.35 ^{^a}	27.23±5.91 ^{^a}
	last	30.90±3.28 ^{^a}	29.25±4.69 ^{^a}