MSK US imagining board exam

Question 1

What if the GF line with and what does it do?

Answer 1

hyline cartilage and deepens the fossa for stability

Question 2

What attaches to the GH joint

Answer 2

Long head of the biceps (superior margin), GH capsule and GH ligaments

Question 3

What are the bony landmarks of the AC joint

Answer 3

Ligament spans joint space, should not be distended, Fibrocartilage disc within joint margin until around 40

Question 4

Type 1 AC joint

Answer 4

A sprain or incomplete tear of the joint capsule and its reinforcing AC ligament

Question 5

Type II AC joing

Answer 5

A complete tear of the joint capsule and its reinforcing ac ligament: in fact are the coracoclavicular ligament. Joint space widened. Clavicle elevated above acromion.

Question 6

Type III AC joint

Answer 6

A complete tear of the a. joint capsule, b. AC ligaments, C. Caoraco-clavicular ligaments. Joint spae increased to 1.0 +-1.5 cm