Fig. 2From: Benefits in pain perception, ability function and health-related quality of life in patients with failed back surgery syndrome undergoing spinal cord stimulation in a clinical practice settingTrends of main outcome measures. Trends during 24 months of follow up, i.e. at enrollment, at 6 m, 12 m, 18 m and 24 m post-SCS, of mean and maximum pain score measured with NRS (a), of disability score measured with ODI (b), of HRQoL assessed with EQ-utility index and VAS (c) and with the SF-36 PCS and MCS scores (d)Back to article page