Peripheral Nerve Block - Median Region

MEDIAN NERVE IN THE ELBOW REGION

Anatomical Correlation

BA = brachial artery   M = median nerve

BA = brachial artery   H = humerus   M = median nerve

Pre-injection Scan   Arrowhead = median nerve   BA = brachial artery

Post-injection Scan   Arrowhead = median nerve   BA = brachial artery   LA = local anesthetic around the nerve

MEDIAN NERVE IN THE FOREARM

Anatomical Correlation

RA = radial artery   N = median nerve

FCR = flexor carpi radialis   FDP = flexor digitorum profundus tendon   FDS = flexor digitorum superficialis   FPL = flexor pollicis longus   PL = palmaris longus

MEDIAN NERVE IN THE WRIST

Anatomical Correlation

FCR = flexor carpi radialis tendon   FDS = flexor digitorum superficialis tendon   FPL = flexor pollicis longus tendon

Arrowhead = median nerve   FCR = flexor carpi radialis tendon   FDP = flexor digitorum profundus tendon   FDS = flexor digitorum superficialis tendon   FPL = flexor pollicis longus tendon

SELECTED REFERENCES

• Russon K, Blanco R: Accidental intraneural injection into the musculocutaneous nerve visualized with ultrasound. Anesth.Analg. 2007; 105: 1504-5.
• Orebaugh SL, Pennington S: Variant location of the musculocutaneous nerve during axillary nerve block. J.Clin.Anesth. 2006; 18: 541-4.
• Liebmann O, Price D, Mills C, Gardner R, Wang R, Wilson S, Gray A: Feasibility of forearm ultrasonography-guided nerve blocks of the radial, ulnar, and median nerves for hand procedures in the emergency department. Ann.Emerg.Med. 2006; 48: 558-62.
• Schafhalter-Zoppoth I, Gray AT: The musculocutaneous nerve: ultrasound appearance for peripheral nerve block. Reg Anesth.Pain Med. 2005; 30: 385-90.
• Spence BC, Sites BD, Beach ML: Ultrasound-guided musculocutaneous nerve block: a description of a novel technique. Reg Anesth.Pain Med. 2005; 30: 198-201