Banner shoulder instability

Question 1

What is this:

Inability to maintain the humeral head centered in the glenoid fossa

Answer 1

instability

Question 2

What is this:
Capacity of the humeral head to be translated or rotated from a reference position
Allows shoulder to attain full range of functional motion

Answer 2

laxity

Question 3

What are two categories of stabilizers?

Answer 3

static

dynamic

Question 4

What are the two types of static stabilizers?

Answer 4

articular anatomy

capsuloligamentous structures

Question 5

What are the two types of dynamic stabilizers?

Answer 5

rotator cuff

long head biceps brachii

Question 6

When do your shoulder muscles relax and ligaments relax and do not undergo tension, but the shoulder is still stable?

Answer 6

when you sleep

Question 7

What is the glenohumeral stabilizing system?

Answer 7

• glenoid concavity
• scapula
• capsuloligamentous restraints
• muscles compress head into glenoid
• adhesion- cohesion of articular surface

Question 8

What does the rotator cuff do?

Answer 8

compression of humeral head into glenoid and stears the humeral head into glenoid during arm movement

Question 9

What does the long head of the biceps do for the shoulder?

Answer 9

stabilizes anterior and superior translation of humeral head

Question 10

How does the deltoid help out the shoulder?

Answer 10

compesses proximal humerus into CA arch

Question 11

What does the superior glenohumeral ligament do for the shoulder?

Answer 11

restraint against inferior forces when arm is adducted

Question 12

What does the:
restraint to translation and rotation
in mid to low range of abduction

Answer 12

middle glenohumeral ligament

Question 13

What does this:
thick anterior with thinner posterior band and a thin interposed axillary pouch. Causes restraint to translation and rotation. Such as arm abduction, extended, externally rotate

Answer 13

inferior glenohumeral ligament

Question 14

The capsule of the shoulder gets tight anteriorly with what kind of rotation? tight posteriorly?

Answer 14

external rotation

internal rotation

Question 15

What kind of shoulder instability is this:

manifesting as pain at the shoulder or upper arm with overhead activities

Answer 15

subtle

Question 16

What kind of shoulder instability is this:

inability to perform overhead activities without apprehension (sense that the shoulder could dislocate)

Answer 16

mild to moderate

Question 17

What kind of shoulder instability is this:

easily dislocate voluntarily or involuntarily during any activities, overhead or otherwise

Answer 17

severe

Question 18

What are these:
Demonstrate position & actions of instability and initial injury
Observe Scapulothoracic Motion
Provocative Tests
Glenoid Cavity Competence
Muscle Exam
Laxity Tests
Screening Cervical Spine Exam

Answer 18

physical exams to assess the shoulder

Question 19

What are three provocative exam to compare shoulders?

Answer 19

apprehension test
relocation test
surprise test

Question 20

Which test is this:
supine, shoulder abducted 90°, elbow flexed 90°
Examiners knee support elbow to prevent extension
extremity slowly externally rotated by 2 fingers on wrist
Positive = pain, stretch, apprehension

Answer 20

apprehension test

Question 21

Which test is this:
Same starting position as apprehension test
Examiner puts posterior force on proximal humerus
External Rotation as above
Positive = relief of symptoms elicited with apprehension test

Answer 21

relocation test

Question 22

Which test is this:
Hold final position of relocation test
Quickly remove force from proximal humerus
Positive = sudden return of symptoms

Answer 22

surprise test

Question 23

How can you check on the supraspinatous?

Answer 23

check ability to resist forward flexion in internal rotation

Question 24

How do you check on the infraspinatous

Answer 24

check ability to resist external rotation

Question 25

How do you check on the subscapularis?

Answer 25

internal rotation with hand on stomach

Question 26

What part of the glenohumeral joint has the most instability?
What nerve are you worried about here?

Answer 26

the anterior part (happens to pitchers)

axillary nerve

Question 27

What tests tell you if you have anterior instability?

Answer 27

drawer and load-and-shift test, and apprehension and relocation tests positive

Question 28

How can you tell if someone has a posterior instability?

Answer 28

present with arm externally rotated and a prominent humeral head on the posterior shoulder.

Question 29

What is this:
Inherent elasticity in the connective tissues, and not a discreet injury
Athletes with congenital hyperlaxity of multiple joints in sports requiring overhead arm motions
Vague symptoms with activity
Usually rotator cuff weakness
Drawer and load-and-shift tests
anterior and posterior displacement without popping
Positive sulcus test with pain
Associated Scapulothoracic Dyskinesis

Answer 29

multidirectional instability