Pain & instability
No matter the reason, a loose implant
is no good.
There are two types of loosening, septic and aseptic. Septic loosening is due to infection and is a very serious problem. Aseptic loosening is due to wear and can make reconstruction difficult. Any lose implant needs to be reconstructed, see your orthopaedic surgeon asap! consider seeing an adult reconstruction specialist for a second opinion.