instability

Question 1

what is it?

Answer 1

involves painful abnormal translation movement or subluxation and/or recurrent dislocation

Question 2

who does it occur in and what is it associated with?

Answer 2

sporty teenagers, labral tear

Question 3

what is traumatic instability?

Answer 3

following a traumatic anterior dislocation - develops recurrent dislocations and subluxations

Question 4

what is atraumatic instability?

Answer 4

generalised laxity
Ehlers-Danlos
Marfan’s
pain from recurrent subluxations or dislocations

Question 5

what is acute presentation in trauma clinic?

Answer 5

painful in sling

Question 6

what are chronic symptoms?

Answer 6

atraumatic laxity/subluxations
not painful

Question 7

what are signs?

Answer 7

abnormal shoulder contour
tenderness
muscle wasting
good ROM
scapular winging

Question 8

what tests are used?

Answer 8

sulcus sign
anterior and posterior drawer tests
anterior and posterior apprehension tests
rotator cuff strength