September 16, 2014 - Problems Associated With the DePuy ASR - Like other metal-on-metal hip implants, the friction between the metal components is responsible for metal shear and the release of metal ions. When the cobalt and chromium ions land nearby (in the hip tissues) symptoms of metallosis will occur such as: severe inflammation, chronic and...

While both the Pinnacle and the ASR have caused significant amounts of harm to patients who were implanted with the devices, there are noteworthy differences between the two models including...

DePuy, a subsidiary of Johnson and Johnson, cornered a significant portion of the metal-on-metal hip implant market with its ASR Hip Resurfacing System and ASR Acetabular System. The ASR implant was based on its being substantially similar to another DePuy hip implant—the Pinnacle. The Pinnacle has suffered its share of problems as well, although it has not yet been recalled.