Μολις το βρηκα απο Bernsteinmedical.com:
Splitting Up Follicular Units
As a word of caution, in Follicular Unit Hair Transplantation, stereo-microscopic dissection is used to dissect naturally occurring 1-4 hair follicular units from the donor area. If these units are kept intact in the dissection, growth will be maximized and a hair transplant patient will get the greatest possible fullness and density. However, if the microscopic dissection is poor and some of the hair in the follicle is destroyed, the results will be less than ideal.
If follicular units are divided up into smaller groups, or into individual hairs, the graft numbers will significantly increase (and so will the price of the hair restoration procedure, if the patient is charged by the graft) without any increase in fullness (and probably less fullness due to sub-optimal growth.)
For example, if a patient had a 2,000 graft hair transplant procedure where the 4-hair grafts were split up into 1- and 2-hair grafts, either through poor dissection or intentionally, the new procedure would now have 2,400 grafts with exactly the same number of hairs. However, now each graft would contain only 1.96 hairs rather than 2.35 hairs. In addition, 400 more sites would need to be unnecessarily placed into the patients scalp to accommodate these grafts. This, in turn, would cause the hair to be spread out over a larger area of the scalp, decreasing the potential density in the more important areas such as the front – and increasing the cost of the surgical hair restoration procedure.
Splitting Follicular Unit Hair Grafts
FU Graft Size Intact FU Grafts
1-hair 250
2-hair 1000
3-hair 550
4-hair 200
Total Grafts 2000
Total Hairs 4700
Hair/FU Graft 2.35
Αρα το θεμα ειναι να μην κοπουν παραπανω grafts απο κακο υπολογισμο και μετα ανοιχτουν υποδοχες που δεν θα χρειαζονταν για να μπουν τα περισσια μοσχευματα και απλωθουν αναγκαστικα και σε μεγαλυτερη εκταση στο κεφαλι.
Η τιμολογηση ομως των grafts που διαιρουνται σε μικροτερα ειναι πραγματικοτητα και μαλλον αναποφευκτη. Το κακο ειναι να γινεται υπερχρηση αυτης της τεχνικης και να τιμολογειται ο ασθενης περισσοτερο.