Is the implant infected or the bone structures it is fixed to ? I believe it could be called "periostitis", "osteitis", " osteomyelitis", "spondylodiscitis", "spondylitis". etc.
I strongly agree vith Dr. Djurdjevic that the best term is "implant releated infection". It gives some explanation of the etiology of the supossed infection...
No. I think it is better to be designated as post instrumentation infection . Actually,the implants nowadays are titanium and the not cause of infection,In many instances we can preserve the implant and solve the infection appropriately. without hardware removal.