1. What is the injury ?
Acromioclavicular joint seperation.
2. What is the mechanism for this type of injury ?
Fall with direct impact on the superior aspect of acromion.
3. What type of injury in this patient ?
Type V.
4. What is the treatment goal for an EP ?
Type I~II is conservative.
Type III optional/controversial
Type IV~VI is surgical intervention.
Classification of AC joint seperation:
Type I appear normal
Type II 0~50% displacement at the AC joint but no increase in the coracoclavicular interval
Type III clavicle displaced superiorly 50% to 100% when compared to normal side.
Type IV distal clavicle displaced posteriorly into or through the trapezius
Type V displaced > 100~300%
Type VI distal clavicel displace inferiorly
Here were the post-op view of this patient
