Axillary nerve block is performed in standardized manner and muscle force is measured before and after the block.

Nerve Injury

Nerve Palsy

Axillary nerve block block (AXNB):
The ultrasound probe is placed transversally in the infraclavicular region with the arm in 90° abduction. The brachial plexus and its cords are identified l lateral to the brachial artery. The posterior cord is identified by ultrasound and is blocked - or, if the axillary nerve visible too - the axillary nerve is selectively blocked when it leaves the posterior cord and lies on the subscapular muscle accompanied by the posterior circumflex humeral artery. Using an in-plane technique, a short bevel connected to a nerve stimulator with the setting 0.5 mA current intensity, 0.1 ms impulse duration and 2 Hz impulse frequency for dual guidance, will be advanced until its tip is positioned near the nerve without eliciting motor contractions. After careful negative (for blood) aspiration local anesthetic will be applied until the targeted neuronal structure is surrounded by the injected fluid.

Axillary nerve block for artificial deltoid muscle palsy

Balgrist University Hospital

Deltoid Muscle Contribution to Shoulder Function

Deltoid Muscle Contribution to Shoulder Function - An Experimental Approach

Strength of abduction, flexion, external rotation and internal rotation in Mm. infraspinatus, supraspinatus and subscapularis respectively measured in Newton before and after blockade of the N. axillaris.

Analysis of the geometric data of the X-ray images and correlation with the primary outcome.

calamus palustris/protiplesňový

Deltoid Muscle Contribution to Shoulder Function

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