[Observations of the surface of the articular cartilage after treatment with hyaluronidase (author's transl)].

1. The articular surfaces of the femoral head of rats have been studied by scanning electron microscopy after in vitro treatment with hyaluronidase. 2. The cartilage surface has been digested mildly by the buffer medium (control). 3. The matrix of the cartilage has selectively been removed by the hyaluronidase. 4. Chondrocytes have been seen on the surface after treatment with hyaluronidase for a longer period. 5. We discuss the result of enzymatic digestion.