Unfortunately for those who have replaced hips, being unattached to body parts is a familiar notion. Still, no one expects a hip replacement to have to be replaced due to defects. Yet it happens a lot.
The materials in hip replacements are not exactly ideal for general physical health when they leach into people's systems, which is what they can do. Complaints about leaching metals, hip corrosion, fretting, and other issues have led to lawsuits over numerous types of hip systems used to replace old and worn bones.