The PCL & ACL sit in very close proximity to each other in the middle of the knee joint. "Cruciate" is Latin for cross shaped - the ACL & PCL, in their anatomical position, cross over each other (twisting around each other). The PCL sits behind the ACL in this anatomical arrangement (hence the name Posterior Cruciate). Because of this close arrangement of the Cruciate ligaments, clutching the back of the knee would be of minimal diagnostic value when differentiating between an ACL vs PCL injury.
Time out with a PCL injury will also depend on whether any other structures (eg collateral ligaments, chondral articulate cartilage) was damaged at the same time (hence the MRI he's having tomorrow).
Time out with a PCL injury will also depend on whether any other structures (eg collateral ligaments, chondral articulate cartilage) was damaged at the same time (hence the MRI he's having tomorrow).



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