My surgeon wants to perform a modified deep plane facelift.
You'll find a description of various techniques which may be helpful for you.
It differs from techniques that pull only on the skin or which suture the muscle layer without cutting deep to the muscle.
There is no standard "modified" deep plane facelift, so it would be best to ask your surgeon what he/she means when he/she says "modified."
It is normal and routine for a good plastic surgeon to modify a technique to best suit the unique needs of an individual patient.