Thanks for everyone's advice. I had considered a tandem as a way back in but I talked it through with my Instructor and we decided some coaching and a radio would be a better option. I have no issues whatsoever with going back on radio and was planning to just focus on hop and pops and canopy work for now until I get more confident. I hadn't considered working on PLFs but you're spot on about how my accident happened so that's definitely something I'm going to put serious work into. I'm also going to be more picky about the condidtions I jump in, I was injured on a nil winds day so I'll be waiting for some wind before I jump again in the forseeable future.
It's good to know that others in a similar position have come back from an accident and are still enjoying the sport. I've spent a year so far alternating between wanting to jump again and not wanting to jump again and I have considered the fact that skydiving is not for me but the fact is that I enjoy it a lot, its something that gives me a really good feeling about myself and something I want to go back to despite the heightened risk of my injury. If I'd given up every time somebody told me something wasn't for me I'd never have got past my first jump. I've made my mind up to do this, if I decide after a jump or two that I have't got the confidence to continue then at least I can say I've given it a try.