The American Academy of Orthopaedic Surgeons projects that by 2030, 3.48 million total knee replacements and 572,000 total hip replacements will be performed annually in the United States. In 2004, the last year for which the academy has released data, U.S. hospitals performed 478,000 total knee replacements and 234,000 total hip replacements.
The demand is driven by baby boomers who want to maintain active lifestyles. Advances in materials that make for longer-lasting implants mean more people are getting new joints at younger ages.
Older implants had a life expectancy of 10 to 15 years; newer ones are … Read the rest