I have a similar but different issue that started in 2018. Xray said there was a bone chip causing bone growth. It's creating something like a bunion. It basically prevents my big toe from flexing up beyond straight. He gave me a cortisone shot at the time, and it really helped. It still bugs me here and there, but it isn't bad enough to get it fixed.
His solution was to permanently attach the big toe to the foot. Wasn't wild about that. When it gets babd enough, I'll get a second opinion.
Grinding the bone doesn't sound horrible. My only suggestion is to find a place that specializes in what they are doing. Someone that only does feet.
Sent from my SM-S918U using Tapatalk