Table 1.

Clinical outcome of chemonucleolysis as reported in the literature

Study	Year	No. patients	Agea (years)	Follow-up perioda (years)	Success rate (%)	Re-op rate (%)
Kuh et al. [41]	2005	65	18.4 (10–20)	N/A (1–4)	89	11
Bradbury et al. [44]	1996	42	N/A (13–19)	8.5 (N/A)	64	26
Lorenz and McCulloch [43]	1985	54	N/A (13–19)	4.5 (2–12)	80	20

N/A Not available

^aThe values are given as the means, with the ranges in the parenthesis