Of 128 patients who underwent test stimulation (95,3% TLP; 4,7% PNE), 82 (64,1%) received an implantable pulse generator .
Mean age was 53,16 ± 16,00 years and 80,3% were female.
Primary indications for SNM were idiopathic overactive bladder(OAB) dry: 8,6%, OAB wet: 51,6%, non-obstructive urinary retention (NOUR): 22,7% and OAB or retention due to neurogenic bladder: 17,2%. Back complaints were present in 52 patients (40,6%%; 13,5% cervical, 5,8% thoracic, 53,8% lumbosacral, 19,2% multiple complaints and 7.7% unspecified). Of these, back surgery and/or SID was performed in 34 patients (26.6%: 17.6% cervical surgery, 17.6% lumbosacral SID, 47.1% lumbosacral surgery, 14.7% multiple procedures and 2.9% unspecified). The other 76 (59,4%) constituted the control group.
No statistical difference in mean age, the distribution of sex and the prevalence of primary indications were withheld between the control group and group with backpain and prior back surgery, respectively (p=0,072 and p=0,093, p=0,729 and p=0,877, p=0,385 and p=0,764).
Chi-square analysis showed no significant difference in implant rate between the control group (67,1%) and the group with back complaints (59,6%) (p=0,386) nor between the control group and the group with prior back surgery (58,8%) (p=0,458).
Also, no significant difference in implant rate was noted between groups when stratified according to the location of back pain (p=0,586), the location of back surgery and/or SIDP (p=0,788) and the primary indication for SNM (p=0,386, p=0,458).