Getting a new knee: Timing is everything

Don't rush into it, but don't wait longer than you need to.

More than 700,000 Americans will have one or both knee joints replaced this year, usually because of damage from wear-and-tear arthritis. Age itself is no barrier, and about half of total knee replacements go to people 65 and older. Replacing a joint damaged by osteoarthritis helps men stay active and independent.

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