Shoulder Classifications

Question 1

Fractures of lateral third of clavicle?

Answer 1

1) Type I
2) Type IIA
3) Type IIB
4) Type III

Question 2

Type I clavicle fx?

Answer 2

Fx with no disruption of ligaments = no displacement (tx with simple sling for few wks)

Question 3

Type IIA clavicle fx?

Answer 3

Fx is medial to ligaments; both ligaments intact

Question 4

Type IIB clavicle fx?

Answer 4

Fx is bt ligaments; coroid is disrupted, trapezoid is intact (medial fragment may elevate)

Question 5

Type III clavicle fx?

Answer 5

Fx thru AC joint, no displacement (often missed and may later cause painful OA requiring resection arthroplasty)

Question 6

AC separation?

Answer 6

6 grades

Question 7

Grade 1 AC separation?

Answer 7

AC ligament sprain

Question 8

Grade 2 AC separation?

Answer 8

AC tear, CC intact

Question 9

Grade 3 AC separation?

Answer 9

AC and CC ligament tears </= 100% superior displacement

Question 10

Grade 4 AC separation?

Answer 10

Grade III w/ posterior displacement

Question 11

Grade 5 AC separation?

Answer 11

Grade III </= 300% superior displacement

Question 12

Grade 6 AC separation?

Answer 12

Grade III w/ inferior displacement

Question 13

4 parts of Neer classification of fractures of proximal humerus?

Answer 13

1) Articular fragment (humeral head)
2) Lesser tuberosity
3) Greater tuberosity
4) Shaft