Avoid heels as they tend to get people to focus on the lower leg (is that where the scars are?) or wear colored or patterned panti-hose (tights). Lots of very cute designs that look fantastic.
Heels are also bad for you full stop, but what isn't that makes you look good! but if you have muscle injury they could be even more painful to wear.
Depending how bad the scarring is, foundation can cover stuff, or Derma-Blend.
Check out the fashion magazines for ideas. TBH fashion magazines are a must for learning looks and cute ideas to suit you, you can access them on line or at the local library instead of buying them.
TBH again a few hours in the library going through fashion magazines is worth years of trying to find a style to suit you. And it is free!