Signs of Deltoid Dysfunction From Axillary Nerve Palsy

I have a case of axillary neuritis with excessive pain. Below can be used to demonstrate deltoid weakness.

Since 1994, signs of deltoid dysfunction have been put forward and modified. below are the tests.

1) The swallow sign – inability to bring arm fully back ( more test posterior deltoid)

  • Sign of axillary Nerve Palsy
  • “Palsy of the accessory nerve, rotator cuff rupture,  or palsy of the suprascapular nerve were able to extend the shoulder fully when the axillary nerve was intact.”
  • 20 degree + difference is significant

swallowtail_sign

2) Deltoid extension lag test – arms are brought back like above and ability to hold it there monitored:

deltoid extension test

3) Abduction in Internal Rotation Test:

aduction_internal_rotate_test

4) Not as specific but a newer test – Akimba test:
https://www.thieme-connect.com/products/ejournals/html/10.1055/s-0032-1313772

akimbotest

Positive test show cannot do akimbo:
akimbo

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.