AC joint pathology

Question 1

Patient presentation

Answer 1

arm adducted and supported
pain and tenderness at AC joint
swelling
step deformity (3 and 5)

Question 2

Where does the AC painful arc usually occur?

Answer 2

170-180 degrees of terminal abduction

Question 3

Test item cluster

Answer 3

crossover test
resisted extension test (horizontal abd)
o’brien’s test
(need pain at AC joint for positive)

Question 4

Type 1 and 2

Answer 4

non surgical

ice, rest, modalities

Question 5

Type 3

Answer 5

surgical or non (depends on patient)

rehab similar to 1/2

Question 6

Type 4,5,6

Answer 6

surgery
imbolization
6 months for return

Question 7

What usually causes this type of injury?

Answer 7

direct blow to shoulder with arm add

landing on arm