What can I do about dents after explant surgery?

I had 23 year old silicone implants (placed over the muscle) removed en bloc four years ago via inframammary fold incision. It feels like I have adhesions under the dents. I do not want to replace with implants or do a fat transfer. What can I do to restore the shape and get rid of the dents? Will massage help at this point? Will a scar revision cause more adhesion issues? My explanting surgeon refuses to do a scar revision and only offers to replace implants. Thanks.