[guide.chat] metal hips, knees etcetera causes cancer
- From: vanessa <qwerty1234567a@xxxxxxxxx>
- To: "GUIDE CHAT" <guide.chat@xxxxxxxxxxxxx>
- Date: Tue, 10 Apr 2012 23:14:14 +0100
More study needed on long-term metal-on-metal cancer risks
Tuesday, April 10, 2012Nottingham PostFollow
A BRITISH Medical Journal investigation looked into the potentially high level
of toxic metals from failing hip implants which may, in future, affect
thousands of people around the world.
The investigation also looked at why these hip replacements were allowed
despite the risks being known and documented for decades.
A study commissioned by the National Joint Registry of England and Wales and
carried out by scientists from the Universities of Bristol and Exeter, looked
at whether these concerns were valid. Results were published last week.
The study found that patients who have had metal-on-metal hip replacements were
no more likely to develop cancer in the first seven years after surgery than
the general population.
But the study also recognised that a longer-term study was required to give a
better picture of cancer risk after that time period.
The National Joint Registry of England and Wales contains records of over one
million procedures from at least 97 per cent of orthopaedic units.
Every year registry data and hospital episode statistics are linked up to check
how patients who have had joint replacements are faring.
In this study cancer rates in patients with metal-on-metal hip replacements
were compared with both a group of patients who had other hip bearing surfaces
implanted and the general population.
The data covered 40,576 patients with metal-on-metal hip implants and 248,995
who had other types.
Results showed that the chance of a 60-year-old man with moderate health and a
metal-on-metal stemmed hip replacement being diagnosed with cancer in the five
years following surgery is 6.2 per cent, compared to 6.7 per cent chance with
hip replacement using other bearing surfaces.
For women, it was 4 per cent for metal-on-metal and 4.4 per cent for other
bearing surfaces.
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