Hi london, hasn't your consultant discussed the removal of the metalwork with you? Reason I ask is because my son broke his femur 3 years ago and had to have a rod inside the bone, plus 3 screws. It was always the intention to remove them once the break had fully healed, he had them in for 18 months just to be sure, then had them removed, he's now playing rugby again, although he sometimes gets the odd twinge.
Have to say though, he's only 17 now, kids bounce back so easily, and it was a clean break - yours doesn't sound so straightforward.
Can only suggest you talk to you consultant.