What it isFailed or Infected Joint Replacement
Replacements can fail in four ways: the implant loosens from bone, the bearing wears, the joint becomes unstable, or bacteria colonize the implant.Each produces a painful joint that was once fine.Finding the cause comes first. Revising a joint without knowing why it hurts rarely helps.
CausesLoosening, wear, infection
Most commonYears after surgery
First stepX-rays, blood tests

Dr. WallentineJoint Replacement
