The first courtroom test of liability claims involving a particular DePuy Orthopaedics Inc. hip replacement device ended in more or less a split decision: The jury awarded plaintiff Loren Kransky $8.3 million but rejected his bid for punitive damages.

Unfortunately, attorneys on both sides agree, the outcome tells precious little about the prospects for the approximately 10,000 claims still pending against the company over the device, known as ASR XL. A more representative test of the legal issues facing DePuy began unfolding in a courtroom in Chicago on March 11. Plaintiff Carol Strum had her device implanted in 2008.