GARTBL

Question 1

Supraspinatous action and innervation

Answer 1

Abduction of humerus
Suprascapular nerve

Question 2

Infraspinatous action and innervation

Answer 2

Lateral rotation of humerus
Suprascapular nerve

Question 3

Teres minor action and innervation

Answer 3

Lateral rotation
Axillary nerve

Question 4

Subscapularis action and innervation

Answer 4

Medial rotation of humerus
Subscapular nerve

Question 5

Which muscle of the rotator cuff is the most commonly torn ?

Answer 5

Supraspinatous

Question 6

What is subacromial impingement syndrome?

Answer 6

Supraspinatous tendonitis from overuse
Subacromial bursitis
Bony spurs coming off of acromion can pinch bursa or tendon causing pain

Either of these will cause a narrowing of the subacromial space so when elevated arm the inflamed structure will get pinched and causes pain

Question 7

What is hallmark feature of subacromial impingement syndrome?

Answer 7

The painful arc where maximum pain is felt between 60-120 degrees abduction

This is the angle at which the subacromial space is most narrow

Question 8

Why is it necessary to strengthen all muscles of rotator cuff when treating subacromial impingement syndrome?

Answer 8

Because strengthening all the muscles will allow for better depression and compression of humeral head in glenoid fossa thus allowing for more clearance between the humerus and acromion during movement

Question 9

What are ligaments?

Answer 9

Soft tissue structures that connect bones to bones

Question 10

What is biceps tendon’s relationship to glenoid labrum?

Answer 10

Runs over head of humerus and becomes labrum