Can the scar-tissue be separated from the muscle and not have an indent at the incision sight? (photos)

I had implants put in eight years ago. The muscle adhered to the scar-tissue causing pain when using my arm and an achy feeling most of the time. The scar had faded over the years but the surgeon said it would be easier to go in through the original incision to fix the problem rather than under breast. I had surgery this December but the problem remains. He now suggests to cut the muscle free from the ribs with a new incision under the breast under local anesthesia.