No worries, Dingbat- I would rather know what is going on. It is so sad but true- medicine is not infallible. The disturbing thing to me is that once the manufacturers DO know of a problem, they really should contact every pt and dr and let them know ASAP. That is why these hip and knee registries are so important to me-not only do they provide valuable information for safety and longevity of the implants, they are great for contacting pts if necessary. BTW- your avatar is a scream!