| Knoop K et al, 1994, USA1 | Convenience sample of 30 adult patients with middle or ring finger injuries distal to the proximal interphalangeal joint requiring anaesthesia. | PRCT | Time of onset of anaesthesia | 6.35 min v 2.82 min (p<0.001) | Parametric analysis for non-normally distributed pain scores. No power study. |
| | | Adequacy of analgesia (% needing rescue anaesthesia) | 23% v 3% (p=0.227) | |
| Metacarpal block (one side of finger) v digital block (other side of finger). Both blocks with 2% lignocaine. Order of blocks was randomised. | | Pain during administration (10 point VAS) | 3.38 v 2.53 (NS) | |