Shoulder Instability And Dislocations

Question 1

What are the 2 main dislocation categories?

Answer 1

TUBs: traumatic, unilateral, bankart and surgery

Ambri: a traumatic, multidirectional, bilateral, rehab, inferior capsular shift

Question 2

Multidirectional instability is defined as

Answer 2

Instability in 2 directions, due to hypermobility due to repeated dislocations

Question 3

What are the 3 tests for anterior dislocations?

Answer 3

Anterior apprehension
Anterior relocation
Surprise

Question 4

_% of dislocations are anterior

Answer 4

95%

Question 5

What position causes posterior dislocations?

Answer 5

Flexed, internal rotation, horizontal adduction (football lineman)

Question 6

What test do you use to test for inferior dislocations?

Answer 6

Hyperabduction test; push scapula inferior and look for apprehension with abduction >105*

Question 7

What are the 9 points on the Beighton scale? And what score for pre pubescent and adults?

Answer 7

5 for adults
6 for prepubescent

Question 8

When an anterior dislocation causes avulsion of the ___ligament it is called_

Answer 8

Anterior inferior GH ligament

Bankart lesion

Question 9

A posterior dislocation causes an avulsion of the __ ligament which is called __

Answer 9

Posterior inferior GH ligament

Reverse Bankart lesion

Question 10

Compression fx of the posterior superior humeral head is called…

Answer 10

Hill sach lesion

Question 11

Compression fx of the anterior superomedial humeral head is called

Answer 11

Reverse Hill-Sach

Question 12

What is the most common nerve affected by dislocation and how will it present in terms of sensory and motor loss?

Answer 12

Axillary nerve: presents with deltoid weakness and sensory loss around inferior deltoid region

Question 13

What 2 images can see dislocation/subluxation?

Answer 13

AP but stryker notch view is better

Question 14

What two images for hill sach lesion?

Answer 14

Stryker notch and shoulder IR