From: Injury patterns of the acromioclavicular ligament complex in acute acromioclavicular joint dislocations: a cross-sectional, fundamental study
ACLC Tear Type
Classification
Prevalence (%)
Clavicular-sided Tear
AC-1
70.8 %
Oblique Tear
AM-PL
AC-2
AC-2A
18.5 %
15.4 %
AL-PM
AC-2B
3.1 %
Midportion Tear
AC-3
4.6 %
Acromial-sided Tear
AC-4
6.1 %