The data indicate that that between 1997 and 2005:
-- The number of knee surgeries climbed by 69 percent from 328,800 in 1997 to 555,800. Hip replacements rose 32 percent from 290,700 to 383,500 procedures, and spinal fusion operations rose 73 percent from 202,100 procedures to 349,400.
Orthopedic Procedures Increase Dramatically In Seven Years, USA
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