LKnative - Interscalene BP block

4 – The cutaneous innervation of the shoulder

The cutaneous innervation of the shoulder is:

1) the axillary nerve (C5-C6; superior lateral brachial cutaneous nerve)

2) the supraclavicular nerve (C4; from the cervical plexus)

3) intercostal nerves (T2-T4; anterior cutaneous branches)

4) radial nerve (C5-T1; inferior lateral brachial cutaneous branches)

The interscalene brachial plexus block typically covers only C5-C6

Image missing
Innervation: Axillary nerve (cyan), supraclavicular nerve (pink), lateral cutaneous nerves (purple), medial brachial cutaneous nerve (green), inferior lateral brachial cutaneous nerve (from radial nerve, yellow).