Ultrasound guidance for ulnar nerve block in the forearm.
OBJECTIVE
The objective of this study was to establish the feasibility of ulnar nerve block under direct imaging.


METHODS
Two patients undergoing surgery on the fifth digit or medial hand received ulnar nerve blocks in the mid-forearm (approximately 15 cm proximal to the styloid process of the ulna). Ultrasound imaging was used to identify the ulnar nerve in the forearm and guide local anesthetic infiltration. Both patients had successful blocks, including sensory anesthesia of the dorsomedial hand.


CONCLUSIONS
Ultrasound guidance for ulnar nerve block in the forearm is a promising technique that includes block of the dorsal cutaneous branch. Anatomic and sonographic considerations are discussed.
Gray
Andrew T
AT
Department of Anesthesiology and Perioperative Care, University of California-San Francisco, Room 3C-38, SF General Hospital, San Francisco, CA 94110, USA. graya@anesthesia.ucsf.edu
Schafhalter-Zoppoth
Ingeborg
I
D000328:Adult; D005542:Forearm / Q000000981:diagnostic imaging*; D050723:Fractures, Bone / Q000601:surgery; D006225:Hand / Q000601:surgery; D006230:Hand Injuries / Q000601:surgery; D006801:Humans; D008297:Male; D009407:Nerve Block / Q000379:methods*; D019637:Orthopedic Procedures; D014459:Ulnar Nerve / Q000000981:diagnostic imaging*; D014463:Ultrasonography