AC joint injury from reading

Question 1

How are the various types of AC separations treated?

Answer 1

types I and II injuries are treated nonoperatively in the acute setting, and types IV, V, and VI injuries generally require surgical repair.

Question 2

What are the two ligaments of the AC joint?

Answer 2

acromioclavicular capsular ligaments provide most of the joint stability in the anteroposterior (AP) direction.

The 2 coracoclavicular ligaments (the conoid and the trapezoid ligaments) make up the other

Question 3

Classify the first three subtypes of AC separation injuries:

Answer 3

Class 1- AC sep. CC is fine
Class 2- AC torn. CC is sep.
Class 3- Both torn

Question 4

What is the 1st pathological process to OA? sorry this isnt in the reading but from old notes

Answer 4

Osteoarthritis- first pathologic process is cartilage swelling

Question 5

What joint is the most commonly affected by OA?

Answer 5

First MCP joint arthritis is more common than knee arthritis even though the knee is more commonly operated on

Question 6

Morbidity is highest assoc with type __ tears.

Answer 6

3

Morbidity is highest with type III injuries, which may be due to the controversy surrounding management. However, those treated nonoperatively generally do quite well. There is a scarcity of literature regarding long-term follow-up after surgical repair of type III.