ACJ injury types

Question 1

Type 1

Answer 1

3-6weeks, direct force to shoulder, ruptures some fibres of AC lig , CC lig intact

Question 2

Type 2

Answer 2

3-6weeks Severe force to shoulder, ac lig rupture, cc lig intact. Clavicle unstable

Question 3

Type 3

Answer 3

6-8 weeks, complete rupture of ac and cc lig, no disruption to deltoids or traps, pain with movement

Question 4

Type 4

Answer 4

8-12 weeks, Distal clavicle displaced into traps

Question 5

Type 5

Answer 5

12+ weeks Severe type 3, deltoids and traps detached and clavicle displaced inferiorly. Shoulder droop

Question 6

Type 6

Answer 6

12+ weeks clavicle displaced behind subcoracoid process, surgery needed