Can scar revision with artas or neograft conceal a hair transplant donor strip scar?

The short answer is yes.  Obtaining the original density of hair in your donor scar won't be possible, as the scar tissue simply doesn't have enough blood flowing through it to support a full density of newly transplanted grafts.For scar camouflage, options are:1) scar removal and revision by an highly experienced scalp surgeon if indicated, with or without tissue expansion2) FUE into the scar; typically 2 or more small sessions will be required3) following FUE the scar to provide some texture, the skin of the scar, which is typically lighter than the surrounding skin of the scalp, can be tattooed with a specialized scalp micropigmentation procedure (SMP), which are temporary tattoos that will need to be revised about once every 2 years or so.However, as you mentioned that you'd like to "shave my head" following a linear strip procedure and have the donor scar be "undetectable", this is not likely ever to happen.  This is definitely something your hair restoration surgeon should have disclosed to you prior to you signing up for surgery.  These techniques can help to decrease the visibility of the scar, allowing for shorter hair styles, but following a linear procedure, is it typically not possible to shave your head without the scar being at least a little bit noticeable, despite the techniques mentioned above.  All scars are, by definition, permanent, as your physician should have mentioned to you as well.

These types of technologies help make the FUE hair transplant extraction process easier for the surgeon. Yes they can be used. But they are not necessary for the goal of concealing linear strip scars. It is important that the grafts are well harvested, chosen carefully and unharmed to produce successful growth. They are inserted into the strip scar tissue so that it is no longer visible. The follicles need to be carefully selected and free from surgical injuries and other forces that can damage the graft such as air drying. However, if a patient’s head donor supply has been depleted for further surgery, Artas and Neograft cannot be used to extract body hair follicles. Here is an example of a patient here at the Dr. U Hair Clinic who required beard hair grafts to conceal multiple strip scars and restore his overall coverage.

One of the  criticisms of the strip method is it leaves a permanent scar.  All scars are permanent and can be attempted to be lessened in appearance.  Some techniques to decrease appearance of scars from the strip method:
Steroid injection- can thin a scar and make it more likely to accept hair grafts
Direct excision- best for thick scars and unsightly scars
Tissue expansion and direct excision- Used for rare cases with multiple harvest and especially poor scars
FUE placement- Here only the best of the best grafts will survive and ARTAS for patients with donor hairs still available as well as body hair can be options
Scalp Micropigmentation-  An increasingly valuable tool in hair transplantation to help hide scars and improve hair results