After my platysmaplasty, I still have vertical lines down my neck. They appear to be the same ones, or new ones next to the old.

Vertical bands in the central neck are from the inner edge of the platysma muscle which has loosened over time because of weakening of the cervical fascial attachments. The platysma should be brought together with a durable repair in a corset type fashion with a lower platysmal myotomy to help avoid recurrent banding. This central platyma repair with an outer neck SMAS lower facelift should help to eliminate banding and improve the contour in the neck. If banding is present after a necklift procedure, either the repair is disrupted or it was not performed in the primary procedure.

These after requires botox treatments and skin tightenin with venus legacy, thermage, ultherapy even after a plastysmaplasty. I suggest you speka to your physician or get a second opionion.  Best, Dr. Emer.