RUMM block is an acronym for Radial, Ulnar, Median and Musculocutaneous nerve block. The block of the radial nerve (R) from a lateral approach and the block of the ulnar, median and musculocutaneous nerve (UMM) from a medial approach are performed in combination.
Indication
Operations of the distal forelimb (carpus/paw)
Step by step (R)
Local anesthetics (R)
Radial nerve block
(Lamont and Lemke 2002)
Local anesthetics: Lidocain 2%, Mepivacain 2%, Bupivacain 0.5%, Ropivacain 0.75%
Initial setting NS: 0.5-1.0 mA, 2 Hz, 0.10 ms
Muscle contraction: carpus extension
Reduction of the amperage: in small increments to <0.5 mA
Correction of the needle position: minor corrections only, pull back needle, correct angle, re-advance needle
MSC control: to avoid block failure
Aspiration and injection: slowly, Raj test, BSmart
Injection volume: 0.1 ml/kg
(Trumpatori et al. 2010)
Video
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Radial nerve block
Correct muscle response carpus extension
Step by step (UMM)
Local anesthetics (UMM)
Block of the ulnar, median and musculocutaneous nerve
(Lamont and Lemke 2002)
Local anesthetics: Lidocain 2%, Mepivacain 2%, Bupivacain 0.5%, Ropivacain 0.75%
Initial setting NS: 0.5-1.0 mA, 2 Hz
Muscle contraction: carpus extension, pronation
Reduction of the amperage: in small increments to <0.5 mA
Correction of the needle position: minor corrections only, pull back needle, correct angle, re-advance needle
MSC control: to avoid block failure
Aspiration and injection: slowly, Raj test, BSmart
Injection volume: 0.15 ml/kg
(Trumpatori et al. 2010)
Videos
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Block of the ulnar, median and musculocutaneous nerve
Correct muscle response carpus flexion
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Block of the ulnar, median and musculocutaneous nerve (Nerve stimulation/US)
Disclaimer
As with any intervention in the body, peripheral nerve blocks also carry the risk of complications. The presented procedures and dosages are thoroughly reviewed and based on currently available scientific data and clinical experience but should only be considered as guidelines along the contents of the course. The responsibility for performing the nerve blocks shown on this site as part of any anesthesia regimen or pain management lies with the executing clinician. B. Braun Vet Care GmbH and Dr. Papadopoulos cannot be held responsible for any complications or adverse effects, that may arise from the described techniques or for any mistakes in the information provided.