Page last updated at 11:55 GMT, Wednesday, 29 February 2012

Metal hip implant patients need life-long checks

The government's health regulator has advised that patients who have undergone large head metal-on-metal hip replacements should be monitored annually for life.

The new advice comes as a joint BBC Newsnight and British Medical Journal investigation reports that problems with such devices have been long known, but no action taken to block their use.

Deborah Cohen reports.

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