{HEAD ~ The neocartilage} of the inventive cartilage matrix or cartilage growth enhancing material may be obtained by culturing chondrocytes under {TAIL ~ suitable culture conditions} known in the art, such as growing the cell culture at 37 degrees C. in a humidified atmosphere with the addition of 2 10% carbon dioxide, preferably 5% Chondrocytes may be isolated by methods known in the art such as by sequential enzyme digestion techniques 
{ HEAD ~ The neocartilage } of the inventive cartilage matrix or cartilage growth enhancing material may be obtained by culturing chondrocytes under { TAIL ~ suitable culture conditions } known in the art , such as growing the cell culture at 37 degrees C. in a humidified atmosphere with the addition of 2 10 % carbon dioxide , preferably 5 % Chondrocytes may be isolated by methods known in the art such as by sequential enzyme digestion techniques
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