Thanks for the query to H.C.M.Forum.
got 10 months back and still there is dent on the injured part .
In my opinion get in one X ray
of injured part and consult an orthopaedician just to rule out any underlying disease in this part.
If no pathology ( disease ) then well & good .
If any change in injured part then get a treatment .
Some times sequestrum formed in the bone in old injury.