Genioplasty reversal for persistent tightness, looking for a second opinion— any suggestions?

Hi,
I have to say that it is impossible to answer your question without proper examination and no pictures. On the theoretical level, both operations might help and provide a certain improvement of the symptoms you are describing. In this case, I believe the surgeon who performed your surgery is the best one to correct it, as he knows the exact steps that were taken during the operation.

You would be most assuredly improved if you had a partial sliding genioplasty reversal combined with the placement of a small dermal-fat graft. What you don't know is whether your symptoms are due to the amount of chin bone movement, whether there is some soft tissue tightness/excessive scar or some combination of both. Many people have sliding genioplasties of 8mms movement and never have any of these symptoms. Thus it is best to address both potential causes in a single procedure.