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Methods and compositions for the repair of articular cartilage defects in mammals

  • US 5,723,331 A
  • Filed: 06/06/1995
  • Issued: 03/03/1998
  • Est. Priority Date: 05/05/1994
  • Status: Expired due to Fees
First Claim
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1. A method for repairing an articular cartilage defect at a pre-determined site in a mammal, the method comprising the steps of:

  • (a) surgically implanting at the predetermined site of said defect a piece of synthetic cartilage of a predetermined volume prepared by the method comprising;

    (i) seeding denuded chondrogenic cells, proliferated ex vivo, into a preshaped well having a cell contacting, cell abhesive surface, said well being dimensioned to provide a predetermined volume of the synthetic cartilage so that said volume approximates a volume of the cartilage defect to be repaired;

    (ii) culturing said cells in said well for a time sufficient to permit said cells to differentiate and form a synthetic cartilage comprising chondrogenic cells dispersed within an endogenously produced extracellular matrix;

    (iii) removing said synthetic cartilage from said well; and

    (b) permitting the synthetic cartilage to integrate into the predetermined site.

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