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Congenital dislocation of the knee is a rare congenital abnormality, due to shortening and fibrosis of the quadriceps muscle, causing muscular imbalance during the prenatal period. Hyperextension of the knee joint evidently manifests itself at birth. In simple cases the hyperextension of the knee with moderate elongation of the cruciate ligaments is observed. In severe cases subluxation or complete...
Hemophilia is an inherited bleeding disorder affecting certain proteins of the blood-clotting cascade. The severity of hemophilia is determined by the level of clotting activity of factor VIII or factor IX in the blood. Low activity of these factors may result in excessive bleeding. Bleeding is mostly internal, affecting joints, muscles, and other soft tissues, and can happen spontaneously without...
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