Restylane/ juverderm fillers used for ball of foot? (photos)

In April 2014 a surgeon did an exploratory operation under my 2nd metartarsal and removed the bursa and 1xsq cm of fat pad (a sliver of glass was found). I am now left with a hollow due to the removal of bursa/fat pad. The underlying bone now virtually has no cushioning and walking even short distances is painful.. Do you know of any similar case where fillers have been successful been used.See photo comparison left and right foot. Many thanks.