The One Thing You Must Do When Evaluating for an ACL Injury

The One Thing You Must Do When Evaluating for an ACL Injury

Anterior cruciate ligament (ACL) injuries are common. When evaluating the ACL, special tests like a Lachman Test or Anterior Drawer have been shown to have great reliability and validity.

However, there is one main reason why you may get a false positive for an ACL injury of the knee that is often overlooked – you actually injured your posterior cruciate ligament (PCL)!

I know, it seems backwards, but watch this quick video for my explanation!

 

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3 replies
  1. Greg
    Greg says:

    Great tip, Mike. I think one other important part is end feel. I had this exact scenario occur on a rugby pitch about a month ago. MOI screamed ACL. I felt a good firm end feel on my ACL testing but noticed a ton of translation. I was convinced he tore his ACL based on the mechanism. But sure enough he was sitting posteriorly, hence the translation. Checked PCL and found the culprit. Definitely check starting alignment, assess end feel and when the two don’t match look posteriorly!

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