COMPARISON BETWEEN SINGLE INJECTION TRANSTHECAL AND SUBCUTANEOUS DIGITAL BLOCKS

A randomized double blinded study was performed on 142 patients to eva luate two different techniques of single injection digital anaesthesia . In group A, 86 digits in 71 patients were anaesthetized by a single injection transthecal technique using 3 cc of lignocaine and bupivacai ne mixture. Anaesthesia of the whole digit was achieved in 83 (97%) di gits, In group B, 80 digits in 71 patients were anaesthetized with a s ingle injection subcutaneous technique using the same amount of anaest hetic mixture. Total anaesthesia of the digit was achieved in 75 (94%) digits, These two techniques were found to have no differences in eff ectiveness, distribution, onset and duration of anaesthesia.