Key Findings:  Out of 30 patients 21 showed significantly improvements after treatment with cannabis. Furthermore, patients were able to reduce their reliance on other medications and there was evidence that cannabis-using patients demonstrated a significant lower need for surgery.
Type of Study:  Meta-analysis
Study Sample Size:  30
Study Result:  Positive
Study Location(s):  Israel
Year of Pub:  2011
Cannabinoids Studied:  Cannabinoid (unspecified)
Phytocannabinoid Source:  Unspecified