Table 2.
Change in pain score (Defense and Veterans Pain Rating Scale [DVPRS]) and function following therapy
| Time Point | Total Cohort | Outcome Variable | Treatment (PENFS) | Control (Standard Therapy) | P Value |
|---|---|---|---|---|---|
| 2 weeks | 16 (9 PENFS) | DVPRS | –0.9 ± 3.5 | –1.4 ± 7.4 | 0.80 |
| Sit-to-stand | 2.7 ± 6.6 | 0.3 ± 8.1 | 0.24 | ||
| Bicep curls (left) | 4.6 ± 12.7 | 1.7 ± 13.7 | 0.42 | ||
| Bicep curls (right) | 4.2 ± 10.0 | 0.7 ± 15.1 | 0.32 | ||
| 6 weeks | 14 (8 PENFS) | DVPRS | –1.1 ± 4.0 | –0.5 ± 2.1 | 0.52 |
| Sit-to-stand | 3.1 ± 9.7 | 0.3 ± 8.1 | 0.27 | ||
| Bicep curls (left) | 6.1 ± 13.1 | –1.8 ± 12.4 | 0.04* | ||
| Bicep curls (right) | 6.0 ± 14.4 | 0.8 ± 13.2 | 0.2 | ||
| 12 weeks | 14 (9 PENFS) | DVPRS | –1.3 ± 4.0 | –0.1 ± 3.3 | 0.27 |
| Sit-to-stand | 1.7 ± 8.7 | 1.4 ± 7.7 | 0.91 | ||
| Bicep curls (left) | 5.8 ± 13.2 | 0.0 ± 15.5 | 0.21 | ||
| Bicep curls (right) | 4.6 ± 13.3 | 0.2 ± 11.4 | 0.24 |
PENFS = percutaneous electrical nerve field stimulation.
*
P<0.05. Means are reported with 95% confidence intervals (mean ± 1.96 standard deviation).