Remedy is elusive as metalic hips fail at fast rate
BOSTON — As surgeons here sliced through tissue surrounding a failed artificial hip in a 53-year-old man, they discovered what looked like a biological dead zone. There were matted strands of tissue stained gray and black; a large strip of muscle near the hip no longer contracted.
The ball section of a removed artificial hip. Some patients with all-metal hips, ones in which the cup and ball of a joint are made of metal, said they had trouble finding a doctor to help them.
Dr. Young-Min Kwon, the lead orthopedic surgeon on the operation, said the damage was more extensive than tests had indicated and might be permanent. “The prognosis is guarded,” Dr. Kwon said.
Similar scenes are playing out at hospitals nationwide as a growing number of patients seek to have faulty metal-on-metal artificial hips removed and replaced. More than a decade ago, some researchers had warned that the hips shed tiny pieces of metallic debris that posed potential health threats to patients.
But those warnings were not heeded, and now doctors and patients face a growing public health problem as one of the country’s biggest medical device failures unfolds. Some patients with all-metal hips — ones in which the cup and ball of a joint is made of metal — said they had been bounced from doctor to doctor who did not have the knowledge or the tools to properly diagnose the problem. And by the time they reach specialists like Dr. Kwon at Massachusetts General Hospital, potentially lasting damage may have already taken place.
http://www.nytimes.com/2011/10/01/health/01hip.html?_r=1&src=me&ref=general