An Iowa woman is suing Stryker ($SYK) for safety problems over Stryker's now-recalled Rejuvenate metal-on-metal hip implant. She claims the hip began to cause major pain shortly after doctors implanted the device in February 2011, started to release high levels of cobalt and chromium into her bloodstream and caused other health issues. A second surgery became necessary in November 2012 to replace the faulty device, according to the New Jersey-based lawsuit. Stryker expects recalls of its Rejuvenate and ABG II metal hip devices to cost as much as $390 million. Stryker, Johnson & Johnson ($JNJ) and many other companies are facing mounting FDA scrutiny and legal problems over safety issues with metal-on-metal hip implants. Item