From the NYT health section a week ago.
Having had my knee 'scoped about five years ago (deteriorated meniscus), I am interested -
Novelties - Mimicking Human Cartilage to Repair a Knee - NYTimes.com
... companies are developing potentially simpler knee patches: small, off-the-shelf plugs engineered to mimic the composition of human bone and cartilage.
These ready-made cylinders can be inserted in an arthroscopic procedure; they are often used after a sports injury. They are known as osteochondral scaffolds, because they support new bone and cartilage as it grows.
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