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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: Anesthesiology. 2018 Sep;129(3):517–535. doi: 10.1097/ALN.0000000000002274

Fig. 6.

Fig. 6.

Cumulative pain relief broken down by study group. Relief after facet injection calculated based on the total number of months of pain relief from the diagnostic block, divided by the people who had a positive diagnostic block for groups I and II, or all group III participants. Relief after radiofrequency ablation (RFA) calculated based on the total number of months of pain relief from the radiofrequency ablation, divided by the number of participants undergoing RFA within each respective group. Data presented as means with SD error bars representing 1 SD. For facet injection outcomes, n = 49 for intraarticular group, 50 for medial branch group, and 47 for placebo group. For radiofrequency ablation outcomes, n = 45 for intraarticular group, 48 for medial branch group, and 42 for placebo group.