Knee | Collateral ligaments

  • Medial collateral ligament partial tear

  • Medial collateral ligament partial tear: Ultrasonography and CT-Arthrography

      • Post-traumatic medial pain of the knee.
      CT-Arthrography: no meniscal or chondral changes. Linear image of iodinated contrast (green arrow) into the medial collateral ligament.
      Ultrasound is performed to confirm partial tear: anechoic linear image into the medial collateral ligament surrounded by hyperhemia at doppler. Harmonic mode (H) allows a better contrast and caracterization of the tear.

       

  • Medial collateral ligament tear: MRI

  • Pellegrini-Stieda lesion

      • Medial collateral ligament:

      Heterotopic ossification of the MCL:

  • Lateral collateral ligament stretching

  • Lateral collateral ligament stretching (2)

      • Lateral pain of the knee after rugby trauma.

      Thickening without disruption ofe the Lateral Collateral Ligament ( ). The normal shape of the ligament has desappear and there is an important hyperhemia at the us doppler ( ).

      Normal opposite LCL (). The lesion was isolated .

       

  • Deep layer of the MCL: femoromeniscal ligament

      • Femoromeniscal ligament: deep layer of the medial collateral ligament:

      Superficial layer of the medial collateral ligament:

      MI: internal meniscus

       

  • Collateral lateral ligament: Ultrasonography

      • A slight flexion of the knee is required to analyze the normal aspect of collateral lateral ligament; it allows the ligament to have a vertical position following the long axis of the fibula.