Table 1

Patient characteristics for the whole cohort

Implants400
Explantations96
Explant reasons, No. (% of explantations)
 Diminished pain relief53 (55.2)
 Conditions requiring MRI17 (17.7)
 Infection8 (8.3)
 Frequent dislocation1 (1.0)
 IPG pocket pain2 (2.1)
 No longer pain4 (4.2)
 Other reason11 (11.5)
Age, years (mean±SD)51.8±12.5
Gender, No. (%)
 Male165 (41.2)
 Female235 (58.8)
Indication for implantation, No. (%)
 PSPS2244 (61.0)
 PSPS119 (4.8)
 Peripheral neuralgia47 (11.8)
 Intercostal neuralgia17 (4.3)
 Polyneuropathy12 (3.0)
 CRPS41 (10.3)
 Other20 (5.0)
Follow-up time, months (median, IQR)47.5 (25-74)
Time to explantation, months (median, IQR)26 (14-45)
SCS system, No. (%)
 Boston Scientific148 (37.0)
 Medtronic110 (27.5)
 Nevro90 (22.5)
 Abbott47 (11.8)
 Saluda5 (1.3)
Rechargeable, No. (%)
 Yes272 (68.0)
 No128 (32.0)
DRG stimulation, No. (%)16 (4.0)
Diabetes mellitus, No. (%)
 Yes27 (6.8)
 No373 (93.2)
Immunosuppression treatment, No. (%)
 Yes11 (2.8)
 No389 (97.2)
  • CRPS, complex regional pain syndrome; DRG, dorsal root ganglion; IPG, implantable pulse generator; PSPS1, persistent spinal pain syndrome type 1; PSPS2, persistent spinal pain syndrome type 2; SCS, spinal cord stimulation.