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In happier knee
, doctors from a university in the USA have found a new
to help long-term knee pain. One
has performed simple operations. These involve reducing the
of blood to painful areas in the knee. Less
in those areas reduces
and pain. The doctor says her method is better than
and physical therapy. She also believes people can avoid knee
and knee replacements. She said her method could "provide years of
" by reducing pain inside the knee joint. She said 70 per cent of patients have great
.