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Tool and Method for Creating a Tapered Osteochondral Allograft Implant or Socket

Degenerative joint diseases, like osteoarthritis, are the leading cause of chronic disability in the U.S., affecting approximately 20% of the population. These types of disabilities stem from repetitive exposure of articular cartilage to stress. Eventually, the cartilage will lose the ability to adapt and ultimately the ability to function. Currently, there are multiple options available to help repair the damaged joint. One widely used option is an osteochondral allografts (OCAs) used to treat osteoarthritic joint defects. This process involves harvesting donor tissue and transplanting it into a prepared socket of a recipient. However, once placed in the recipient socket it requires significant force using a press fit. This has been shown to reduce viability of the graft and can compromise the success rate of the procedure.

The current invention, from researchers at the University of Missouri, is an improved tooling and method to create a tapered osteochondral allograft. By matching this tapered allograft design to a tapered recipient joint, the force required to seat the graft is greatly reduce. This can lead to improved longevity of the graft and increased success rates for the procedure.

-Osteochondral allograft suppliers
-Surgical instrument companies

-Reduction of force required for implantation
-Increased tissue viability
-Greater surgery success rate

Additional Details


University of Missouri - Columbia

Intellectual Property Protection

Pending Patent

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