Ortopedia

CARTILAGE REGENERATION REVISITED: ENTERING OF NEW ONE-STEP PROCEDURES FOR CHONDRAL CARTILAGE REPAIR

2013
Autore: Freymann U.

This article reviews the evolution of cartilage regeneration therapeutic approaches from two-step cell-based autologous chondrocyte implantation procedures to current one-step cell-free scaffold-assisted cartilage repair approaches for chondral cartilage repair.

This research is focused on clinical data about commercially available cell-free implants used in regenerative medicine approaches for the treatment of chondral cartilage defects.

Discussion

Chondral cartilage lesions do not heal spontaneously and may progress to severe osteoarthritis. For cartilage repair, a variety of surgical techniques have been established over the years. Further research led to the development of current new one-step cell-free scaffold-assisted cartilage repair approaches based on the experience with scaffold materials in previous two-step autologous chondrocyte implantation procedures. Commercially available scaffold-based products for one-step chondral cartilage repair have been recently tested in first case series and showed promising clinical outcome in the short-term follow-up; however, medium- and long-term comparative studies are necessary to evaluate the regenerative potential of this new one-step cartilage repair procedure and to demonstrate its superiority over or adequacy to traditional approaches.

Conclusion

This critical review summarises the development from two-step cell-based autologous chondrocyte implantation procedures to new onestep cell-free cartilage repair and discusses the first clinical outcome of commercially available cell-free implants. This new approach, based on the principle of cell ingrowths and guidance towards tissue repair, showed promising first clinical results and is considered as an effective and safe treatment option for chondral cartilage repair.

OA Orthopaedics
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