Can't give u any advice on the injury u have because I have never experienced this type of injury but, as far as the foot straps and pads go, I have North Entities on my Underground board and they are
super comfy with plenty of support for the arch of ur foot, loads of different adjustments for the width of ur foot and soft, medium or hard insert pads for ur heel. My feet have never been happier

I have also heard good reports about the Naish Apex's but have no personal experience with them as I have no need try anything else due to complete satisfaction with the NTT's
Price wise, I think they are around $150 - $200