Very significant news about the shin bone. You will try to get several opinions on the way forward, I suppose. The foot must have been paining badly if it persuaded you to get such a thorough check-up. Obviously, at all costs, you must work to ensure your future mobility is not impaired. Did anyone mention calcium/magnesium supplements? A doc over here urged me to do this too, to push back the threat of brittle bone and weak ligaments as we enter the next third of our lives. Vitamin D works well with cal/mag to ensure it is absorbed correctly by the body.
How did the older generation survive without the wonderful resource of Google as information finder? And Wikipedia. The Mayo Clinic website is very good too on medical conditions and solutions.