Navicular surgery – internal fixation

I broke my Navcular a year ago jumping off a wall, it was x-rayed and no break was shown. So I undertook physio on a very badly sprained ankle. After 8 months an MRI scan, three specialists and numerous x-rays it was operated on. It was considered risky to internally fix the navicular because it had been broken for 8 months and the option of a tripple fusion was considered, however during the operation the surgeon took the internal fixation with two screws, one very large screw lateral screw (the lesser of two evils, maybe).After six weeks of no weight bearing in a moon boot, followed by four weeks of slowly increasing weight bearing on crutches I was limping around on my own again.
It is now four months since the operation (12 since the accident), and progress is a little slow although I am managing a walk of 25 minutes with a slight limp.
I have been having physio, shoe insoles and a video of my walk which showed my foots mobility to be impaired in particular pushing off at the end of my step with the ball of my foot, my big toe is curling around inwards like a big bow and rolling up on to the outstep of my foot is particularly limited. I have tried to push it with calf raises at the gym but it has been giving me significant pain. I cycle, swim do abdominal stability excersizes and take shark cardilidge and glucosimine!
I am seriously concerned that this is going to be a permanent injury (disability) and considering I am an otherwise very active 27 year old this is a little hard to take. So any medical knowledge that I might be missing out on please email me with and if you have read this far you deserve a medal.
Thanks,Matt_NZ’n the UK