It's estimated more than 4 and a half million Americans are living with at least one total knee replacement. But what happens when the implant fails?
It happened to an Opelika woman. Irene Sanders had her left knee replaced in 2004. But no matter how much pain medication she took, she says the pain would not go away.
In 2008, she learned why from a new doctor.
"He found plastic, screws and cement , everything all loose in my knee," says Sanders.
Dr. Raymond Godsil of Auburn says 90 percent of total knee replacements are successful. He says the plastic component in Sanders' knee became loose.
He says it's ok to ask you surgeon about the device you will be receiving.
For a look at the medical devices recalled by the FDA, click here http://www.fda.gov/MedicalDevices/Safety/ListofRecalls/ucm329946.htm