Ultrasound vs. blind injection: which numbing method works best for upper arm surgery?

NCT ID NCT05864872

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested two methods to block nerves in the upper arm during surgery to reduce pain from a tourniquet. 140 adults having upper arm surgery received either a blind injection or an ultrasound-guided injection. The goal was to see which approach provides better pain relief and numbness.

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Conditions

The condition(s) this trial relates to.

Pain

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • KAABACHI

    Tunis, 2010, Tunisia

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