You can exercise your ankles so they are less likely to crumble if forced into an awkward position. Also look at where your feet land compared to each other: if one is almost ahead of the other (think camel stride), your foot is to the left (or right) of its hip and is thus naturally bent outwards. Having your foot land more squarely compared to how the body weight works, reduces the strain on the ankle. If the inside of your ankle/sock is always dirty after a run, this is why. Am currently going through the process of fixing this on myself.