Hip implants not backed by evidence: review

Almost a quarter of hip implants are not backed up by clinical evidence to support their use, a UK review finds.

Published in the BMJ the results come at a time when the regulation of medical devices faces a barrage of criticism in the US, UK and Australia.

This has been particularly apparent in the orthopaedic market, where the failure of metal-on-metal hip replacements has resulted in a number of product recalls and lawsuits.

The latest review of data from the joint registry of England and Wales found that almost 8% of the 136,593 components used in primary hip