Sorry to hear of your off Col, hope you have recovered?

I'm pretty sure the steering lock is just a pin that moves into a hole around the steering head, hopefully, just have a look for a displaced cable around the steering tube that is stopping the pin from latching.

good luck

Not sure if you've got a bent steering stop - common when dropped and easy to do - as this may stop the steering from locating correctly. Worth checking to see if it all lines up correctly.

Thanks Ant, I'll check.

Also not posted for a long long time, but still look in on a regular basis. Sorry to hear of your bad luck Col. Hopefully you get everything sorted and life moves on, tough at times !-)