Paragraph 1
Hundreds of
of people have surgery on their knees. A new
from Finland says many of these people might be wasting their
and money. The surgeons who conducted the study said some knee surgery can make knee
worse rather than
. The surgeons spent 10 years studying the results of knee operations. They found that surgery on
in the knee cartilage rarely worked. The doctors said many of the operations were
. They added that some of the operations they looked at accelerated the rate of cartilage
. One doctor said: "What has been shown dramatically is that
who have this procedure have more
."
