Medicine: Nylon on the Knee

Traditional treatment for the stiffened joints of arthritis has been to scrape the ends of the bones, then wrap the exposed bone surfaces in a smooth material to keep the scar tissue from sticking the joint together again. But in the knee joint, where wear & tear is heavy, such an operation gave only short relief: as the material wore out, the joints stiffened up again.

Last week in Boston, after five years of testing and observation, Drs. John G. Kuhns and Theodore A. Potter of the Robert Breck Brigham Memorial Hospital made the first public demonstration of a better way to...

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