mechanism injury

Background

Intact PCL

Anatomy

 

Size

 

2 x as strong as ACL

About the same length as ACL 38 mm

 

Cross sectional area 150% of ACL

13 mm diameter (thicker) 

 

2 Bundles

 

1.  Anterolateral

- most important

- double the size of the posteromedial

- tight in flexion

- try to reconstruct this bundle

Background

 

ACL Normal ArthroscopyACL Normal Arthroscopy

 

Anatomy

 

Developmental Anatomy

 

Knee joint first appears as a mesenchymal cleft at 8 weeks gestation

- ACL and PCL separate entities by week 10