knee MRI

ACL and PCL tear MRI

 

ACL Rupture

Primary Sign

  • Diskontinuitas fiber
  • Abnormalitas slope dari ACL
  • ACL Scar
  • ACL fiber yang tidak tervisualiasi (pada ruptur kronis)
  • Avulsi anterior tibial spine
  • Hiperintensity signal ACL

 

Secondary sign

  • Kissing contusion (Lateral femoral condyle dan posterior tibial plateau)
  • Condylar notch sign
  • Anterior drawer sign
  • Buckling PCL
  • Joint hemorrhage

Segond fracture –> Fraktur avulsi pada lateral tibial plateau

ACL tear. Sumber: springernature.com

 

PCL rupture

Primary Sign

  • Tebal PCL >7 mm, limit ketebalan adalah 6 mm
  • Panjang PCL > 41 mm

 

Secondary sign

  • Bone edema karena kontusio aspek superior tibial condyle atau anterior tibia terhadap inferior femoral condyle
  • Reverse segond fracture

 

 

 

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