Small 1 cm subcortiacl fracture, best seen on
T1 weighted SE squence
Kissing contusion medial anterior femoral condyle and medial anterior tibia plateau - kissing contusion due to hyperextension seen on T2PD weighted sequences
Injury to the posterior lateral corner involving the fbular collateral ligament and biceps tendon and associated fluid collection. T2PD sequence.
Injury to the postero lateral corner inolving the fibular collateral liigament and the biceps tendon. T2PD sequence.
Unremarkable appearance of the popliteal tendon

Subcortical fracture and posterior lateral corner injury

By Markus Holzhauer


History: 20 y old male with injury playing soccer to the right knee. Patient has pain lateral more than medial joint.


Findings:

MRI 2: Small 1 cm subcortiacl fracture, best seen on T1 weighted SE squence :: MRI 2 ::
Small 1 cm subcortiacl fracture, best seen on
T1 weighted SE squence







MRI 1: Kissing contusion medial anterior femoral condyle and medial anterior tibia plateau - kissing contusion due to hyperextension seen on T2PD weighted sequences :: MRI 1 ::
Kissing contusion medial anterior femoral condyle and medial anterior tibia plateau - kissing contusion due to hyperextension seen on T2PD weighted sequences







MRI 3: Injury to the posterior lateral corner involving the fbular collateral ligament and biceps tendon and associated fluid collection. T2PD sequence. :: MRI 3 ::
Injury to the posterior lateral corner involving the fbular collateral ligament and biceps tendon and associated fluid collection. T2PD sequence.







MRI 4: Injury to the postero lateral corner inolving the fibular collateral liigament and the biceps tendon. T2PD sequence. :: MRI 4 ::
Injury to the postero lateral corner inolving the fibular collateral liigament and the biceps tendon. T2PD sequence.







MRI 5: Unremarkable appearance of the popliteal tendon :: MRI 5 ::
Unremarkable appearance of the popliteal tendon









Discussion:
Hyperextension injury causing "kissing contusion" anterior medial femoral condyle and soft tissue injury to the posterior lateral corner. Posterior lateral corner is critical in regard of stability of the joint and early surgery is oftern indicated.



Differential diagnosis: ACL tear - meniscal injury

Diagnosis confirmation: Expert' opinion



Category: Musculoskeletal

Region / Organ: Leg-Muscular system / Connective tissue / Skin

Etiology: congenital

References:
none




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