Old injury...re-occurring problems?

Ok, so in September 2009 i got my bike handlebar 8 inches down my thigh after hitting a pot hole, i just skimmed my artery and cut through my nerves so im left with no feeling in my thigh, anyway, about 1 month after the injury i was having problems with the muscle spasming and hurting, i was then put through to physio where they put me on crutches for 2 weeks. I had physio for another 2 months and then that was it...however, now, 2 years after the incident, im having the same problems starting again, but can they be related to the injury after 2 years?? I am also very sporty so im not sure...any info is appreciated :)