| Hellinger 2014 (32–33)
| 6.3% short < 3 Mo 6.3% long >3M | 4 yrs | 83.0% | DiscFX |
| Hellinger, Feldmann 2010 (34)
| 4% | 6 Months 2 yrs | 82.2% | DiscFX |
| Jannson et al. 2004 (16) | 10% | 10 yrs | only reoperation | Microsurgery |
| Häkkinen et.al 2007 (48) | 11% | 5 yrs | only reoperation | Microsurgery |
| Ostermann et al. 2003 (49) | 14% | 1987-1998 N = 35.309 | only reoperation | Lumbar open dorsal Discectomy |
| Carragee (31) | 15% | 2-6 yrs | 24% for contained hernias | Open dorsal Discectomy for sciatica |
| Hoogland / Gibson / Iprenburg / Ruetten / Tsou (17–19–22–23–24–48)
| 6.9% (HO) 8% (G) 13% (I) 6.3% (R) 15% (T) | 2-4 yrs | 75- 89% | ENDOSCOPY |
| Hoogland (24) | 1.6% Hoogland Endo mit Chemo | 2yrs | Endo Group 85.4% Endo + Chymo 93.3% | ENDOSCOPY with Chymo |
| Manchikanti et al. 2009 (53) | | 2 yrs | 56% | Nucleoplasty |
| Choy, Tassi,Hellinger S.H. Lee (52) | 5% | up to 8 yrs | 70-89% | Laserdiscus- decompression |
| Wardlaw (54) | 10% | 1 / 10-13/ 24 -27 yrs | 95% / 72% / 63% | Chymopapaine |