I had some orthopedic correction done to both tibias using external fixation (metal frames with pins). I am left with some rather unsightly pin-site scarring, including 4 broad depressed scars and 1 broad non-depressed scar beneath each knee, plus 2 broad non-depressed scars on each shin. What treatments are available to unbind and raise the contour of the depressed scars and improve the surface appearance of all the scars? Photos attached. Thank you!