Comparison between single injection transthecal and subcutaneous digital blocks.
A randomized double blinded study was performed on 142 patients to evaluate 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 bupivacaine mixture. Anaesthesia of the whole digit was achieved in 83 (97%) digits. In group B, 80 digits in 71 patients were anaesthetized with a single injection subcutaneous technique using the same amount of anaesthetic mixture. Total anaesthesia of the digit was achieved in 75 (94%) digits. These two techniques were found to have no differences in effectiveness, distribution, onset and duration of anaesthesia.
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Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore.
Wong
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D000328:Adult; D004311:Double-Blind Method; D005260:Female; D005385:Fingers; D006801:Humans; D007279:Injections, Subcutaneous; D008297:Male; D008875:Middle Aged; D009407:Nerve Block / Q000379:methods*