OCAD MSK

History

29M twisting injury 4 day prior, clinically suspected lateral meniscal tear

Figure 1 for case posterolateral corner of knee ( RID2795 ) — Figure 1

Figure 2 for case posterolateral corner of knee ( RID2795 ) — Figure 2

Figure 3 for case posterolateral corner of knee ( RID2795 ) — Figure 3

Figure 4 for case posterolateral corner of knee ( RID2795 ) — Figure 4

Discussion

The FCL is completely torn (red arrows) as is the popliteofibular ligament (blue arrow). I cannot clearly identify the arcuate ligament, is it torn (too bad these ligaments dont come labeled and color coded)? The ACL is intact. I know the posterolateral ligamentous complex is a secondary stabilizer of the ACL that should be repaired with ACL tear. Does this need to be repaired in the absence of ACL tear (slide 4 shows intact ACL)? There is no lateral meniscal tear. Reference article.

Diagnosis

posterolateral corner of knee ( RID2795 )

Hilary Umans, MD

Courtesy

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