I Had A Rt. Femur Fracture About 5 Months Back,

I had a rt. Femur fracture about 5 months back, I was recovering well until my last visit, last week. Apart form my primary fracture, I also have a butterfly fracture behind the main one..Callus formation untill last month was quite fast and significant, however my last week to my surprise the Callus formation seems to have diminished to how it was about 2 months ago...wondering what happened...Regards
Manoj