I had the same type of TPF as you and I also have nerve problems. My accident happened in March this year. I had foot drop like you and used a scarf to help pull the foot the exercise it. It lasted about eight weeks and eventually recovered. I still have the numbness down my leg and my physiotherapist is massaging it to help the nerves. This can be done by myself as well, it’s not pleasant but hopefully it will help with time. Time is the key to this injury and we have to be patient I am afraid. They can make a splint to help lift your foot eventually and when these nerves repair the foot will lift again. Good luck with your recovery.