Table 1. Search Strategies Performed Using the Following Search Terms to Identify Relevant Related Articles.

No.	Description of Search Strategies
1	((Disc OR Herniaiton OR Decompression OR Minimally Invasive) NOT (Fusion OR Fixation)).
2	“Lumbar Discectomy” AND Predictors
3	1 OR 2
4	((Predictor* AND Outcome*) OR Poor OR Sicaitca, OR Lumbar)
5	Microscopic Discectomy
6	Lumbar Discectomy
7	4 OR 5 OR 6
8	3 AND 7