Table 7

Basivertebral nerve ablation arm: 12-month pain and function improvements

Oswestry Disability Index (ODI)Basivertebral nerve ablation arm
(N=66)
P value
Baseline ODI
Mean, SD (range)44.7, 11.3 (30–76)
9-Month ODIn=60*
Mean, SD (Rrange)18.8, 16.4 (0 to –64)
Change from baseline, mean, SD−25.6, 17.1<0.001†
12-Month ODIn=61*
Mean, SD (Rrange)18.6, 15.7 (0 to –60)
Change from baseline, mean, SD−25.7, 18.5<0.001†
9-Month Rresponder Rraten=60*
≥15-point ODI reduction, n (%)40 (66.7%)0.010‡
≥20-point reduction from baseline, n (%)35 (58.3%)0.197‡
12-Month Rresponder Rraten=61*
≥15-point ODI reduction, n (%)42 (68.9%)0.003‡
≥20-point reduction from baseline, n (%)37 (60.7%)0.096‡
Visual Analog Scale (VAS) Basivertebral nerve ablation arm
(n=66)
P value
Baseline VAS
Mean, SD (range)6.7, 1.3 (4–10)
9-Month VASn=60*
Mean, SD (Rrange)2.6, 2.5 (0 to –8)
Change from baseline, mean, SD−4.0, 2.6<0.001†
12-Month VASn=61*
Mean, SD (Rrange)2.9, 2.6 (0 to –8)
Change from baseline, mean, SD−3.8, 2.6<0.001†
9-Month Rresponder Rraten=60*
≥2 cm reduction, n (%)45 (75.0%)<0.001‡
12-Month Rresponder Rraten=61*
≥2 cm reduction, n (%)48 (78.7%)<0.001‡
  • Comparisons to baseline at 9 and 12 months for basivertebral nerve ablation arm patients were significant for both pain and function.

  • *As observed. No imputations for missing values.

  • †P value from a paired t-test (baseline to 9 and 12 months) for the BNV ablation arm.

  • ‡P value from a binomial test.

  • ODI, Oswestry Disability Index; VAS, Visual Analog Scale.