Paragraph 1
Thousands of
have knee surgery. A new
from Finland says many of these people might be wasting their
. The surgeons who did the study said some knee surgery can make knee problems
and not better. The surgeons spent 10 years studying knee
. They found that surgery on knee cartilage
worked. The doctors said many of these operations were
. They added that
operations increased cartilage
. One doctor said that patients who have this procedure "have more
".
