Overflow of the injectate and false-positive rate of diagnostic selective nerve root block
| Overflow of the Injectate | Results of DSNRB | False-Positive Rate | PValue (Fisher Exact Test) | |
|---|---|---|---|---|
| False-Positive | True-Negative | |||
| Present | 4 | 7 | 36% (4/11) | .03 |
| Absent | 4 | 43 | 6% (4/47) | |
Note:—DSNRB indicates diagnostic selective nerve root block.