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Related Experiment Videos

Comparison between single injection transthecal and subcutaneous digital blocks

C K Low1, H P Wong, Y P Low

  • 1Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore.

Journal of Hand Surgery (Edinburgh, Scotland)
|September 30, 1998
PubMed
Summary

Single injection digital anesthesia using transthecal or subcutaneous techniques are equally effective. Both methods provide high success rates for whole digit anesthesia with no significant differences in onset or duration.

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Area of Science:

  • Anesthesiology
  • Digital Nerve Blocks

Background:

  • Digital anesthesia is crucial for hand and foot procedures.
  • Evaluating single-injection techniques for digital anesthesia is important for efficient clinical practice.

Purpose of the Study:

  • To compare the effectiveness of single-injection transthecal versus subcutaneous techniques for digital anesthesia.

Main Methods:

  • A randomized double-blind study involving 142 patients.
  • Group A: Transthecal technique (n=71) with lignocaine and bupivacaine.
  • Group B: Subcutaneous technique (n=71) with the same anesthetic mixture.

Main Results:

  • Whole digit anesthesia achieved in 97% (transthecal) and 94% (subcutaneous) of cases.
  • No significant differences observed in effectiveness, distribution, onset, or duration between the two techniques.

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  • Both techniques demonstrated high success rates for digital anesthesia.

    • Conclusions:

    • Single-injection transthecal and subcutaneous digital anesthesia techniques are comparable in efficacy.
    • Both methods offer reliable and effective anesthesia for digital procedures.
    • Clinical choice between techniques may depend on surgeon preference or specific patient factors.