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Pellegrini-Stieda disease

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Ossification of the superior portion of the medial collateral ligament of the knee, sometimes occurring as a complication of athletic injuries. Clinically there is swelling, pain, and limitation of motion of the joints with tenderness on pressure over the internal condyle of the femur. Several weeks after the initial swelling, a calcified mass may be palpated in the region of the medial collateral tibial ligament. It occurs at any age.

It is roentgenologically demonstrable besides the tibian side of the condylus femoris: Stieda's shadow or Köhler-Pellegrini shadow.


  • A. Pellegrini:
    Ossificazione traumatica del ligamento collaterale tibiale dell’articolazione del ginocchio sinistro. Clin Moderne Firenze, 1905, 11: 433-439.
  • A. Stieda:
    Über eine typische Verletzung am unteren Femurende.
    Archiv für klinische Chirurgie, Berlin, 1908, 85: 815-826.
  • A. Köhler:
    Die normale und pathologische Anatomie des Hüftgelenkes und Oberschenkels in röntgenographische Darstellung. Hamburg, 1905, page 140.

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