I had major ankle surgery that did not turn out very well.  I like to walk for exercise and have been through multiple high top boots, but I have finally found the answer.  since I wear orthodics and an AFO brace the New Balance in a wide version provides me lots of room in the toe-box.  I must admit, this is the most expensive shoe/boot I have purchased, possibly the Gore-Tex construction for outdoor usage is why it is so costly, but good old Amazon had the best price and selection