I have studied your case with diligence.
As per your history there can be infection around surgical site or near implant.
You need to confirm infection by x ray
and clinical examination.
There can be screw loosening also.
If IV antibiotic
are not working then debridement and resuturing of wound should be done.
Till time take rest, follow limb elevation instructions.
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.
Wishing you good health.