TABLE 1.
Baseline Demographics and Characteristics for Permanently Implanted and 24‐Month Completer Patients
| Implanted Patients N = 50 | 24‐Month Patients N = 38 | |
|---|---|---|
| Age (years) at enrollment | ||
| Mean (SD) | 56.7 (12.2) | 55.7 (11.9) |
| Gender, n (%) | ||
| Male | 23 (46.0) | 19 (50.0) |
| Female | 27 (54.0) | 19 (50.0) |
| Primary diagnosis, n (%) | ||
| FBSS | 28 (56.0) | 20 (52.6) |
| Radiculopathy | 9 (18.0) | 8 (21.1) |
| Other | 13 (26.0)a | 10 (26.3)b |
| Primary region of pain, n (%) | ||
| Lower back | 39 (78.0) | 27 (71.1) |
| Leg | 8 (16.0) | 8 (21.1) |
| Foot | 3 (6.0) | 3 (7.9) |
| Prior history of SCS, n (%) | ||
| Yes | 3 (6.0) | 3 (7.9) |
| No | 47 (94.0) | 35 (92.1) |
| Duration (years) of pain | ||
| Mean (SD) | 15.0 (11.0) | 16.2 (11.5) |
Abbreviations: FBSS, failed back surgery syndrome; SCS, spinal cord stimulation; SD, standard deviation.
Other diagnoses: Discogenic back (or lower back) pain/internal disc disruption (n = 5), lumbar spondylosis (n = 4), lumbar degenerative disease (n = 1), neuropathic pain/neuropathic low back pain post trauma (n = 1), peripheral neuropathy (n = 1), and sciatica and gluteal tendinopathy (n = 1).
Other diagnoses: Discogenic back (or lower back) pain/internal disc disruption (n = 4), lumbar spondylosis (n = 2), lumbar degenerative disease (n = 1), neuropathic pain/neuropathic low back pain post trauma (n = 1), peripheral neuropathy (n = 1), and sciatica and gluteal tendinopathy (n = 1).