Case 20 - 30 year old male with knee pain after ACL reconstruction
30 year old male with prior left ACL reconstruction, now with recent left knee injury while skiing.
- This case should look familiar. The patient has a moderate joint effusion with hemarthrosis.
- We also see kissing contusions: focal edema in the posterolateral tibia and lateral femoral condyle with deepening of the sulcus terminalis.
- There's even a small avulsion fracture of the lateral tibial plateau: a segond fracture! This tips us off to the likelihood of an ACL injury.
- Indeed when we inspect the reconstructed ACL, the graft appears intact at near the entrance to the tibial tunnel and the femoral tunnel, but is discontinuous in its mid-portion.
- Given all the above sign-posts its tough to miss this diagnosis of an ACL graft tear. Given the segond fracture and deepening of the sulcus terminalis, we may even be able to make this diagnose on plain radiographs.
Accession: CL0082
Study description: MR Knee Left
Case discussion: