Many people would argue to try the MIS approach first; but some others would say not to "waste your time." A conservative approach is "easier" to support as it implies less risk!
That said, the statistic the doc offered is one of many indeed. Take a look through these posts:
Open Discectomy Study (Korea)
Discectomy, Factors w/Recurrent Herniation & Disc Height Loss: 2009 Spine Sep
Should a Endoscopic Discectomy be tried first?
has anyone had success w/discectomy?
Just remember, there are many, many variables in this kind of procedure. As you read through the topics (please read every one!), you'll see what I mean. I hope this helps.
Good luck with your surgery too! Four days and counting...
