Achieving medial-lateral (M-L) stability for people with amputations who use a prosthesis is important. Common causes for M-L instability include improper prosthetic alignment; improper socket fit; uneven wear on the sole of the shoe; a loose foot in a shoe that is too big; or too much side-to-side motion, exhibited by the carbon fiber foot inside its foot shell. The first four of these causes of M-L instability can be addressed fairly directly. The last one is more difficult to correct.
