DePuy Orthopaedics, a unit of Johnson & Johnson that makes hip
implants among other devices, has been aware for quite some time that
its ASR XL Acetabular System has had higher-than-expected failure rates.
The company quietly announced in late 2009 that it would phase
out the product, claiming low sales were the reason. About that same
time, DePuy recalled the implant altogether in Australia after the
Australian Orthopaedic Association published an evaluation that found
the DePuy ASR had higher failure rates than normal.