HAIR STEM CELL TRANSPLANTATION
What is known about the postoperative results of hair transplantation performed with well-known hair transplantation techniques, FUE (hair follicle unit extraction) and FUT (hair follicle unit transplantation) or strips were performed, both independently creating scars on the patient’s skull.
Transplantation using HST technology does not require wounds or bandages
There is another technique called HST hair stem cell transplantation. This is a stem cell transplant or cloning that leaves no scar on the patient’s head.
An overview of various techniques with an emphasis on postoperative aspects.
Postoperative course of transplantation technique
First, let’s take a look at FUE. This technique, which represents an advance over the past, is to completely extract follicular units from the patient’s donor area. A punch is used for this. In other words, it is a sampling tool whose diameter varies from 1 mm to 0.7 mm for the smallest (microFUE).
With these dimensions, the hair follicle unit is completely extracted. In the donor area, there is a certain amount of follicular unit available for transplantation, which is sometimes referred to as “available capital.” Extraction is performed at a constant distance from one hair follicle unit to another so as not to create an unsightly bottleneck that is too large. The minimum size is 0.7 mm. Below this size, the graft is too thin to survive.
Survival of grafts extracted with HST
With HST technology, transplantation is done with a 0.5-0.6 mm punch instead. These grafts survive, especially thanks to a patented medium containing extracellular matrix and exosomes, making this medium similar to that used in organ transplants.
Bandages required for FUE and FUT transplants
Graft taken from the donor area using FUE technology leaves a series of small scars. During that time, the patient must bandage after surgery as the small wound is bleeding. After that, all the wounds will heal. There are many small scars that can together cause fibrosis of the scalp.
It is also clear that this technique is limited by the number of follicular units available in the donor area. Therefore, if the area to be reconstructed is large, a complete repair cannot be performed because at most one donor area can provide about 5000 follicular units. According to available statistics, about 40% of patients say that the donor area is inadequate for an acceptable transplant.
Next, examining the transplants made using the FUT technique, it consists of removing a strip of scalp from the donor area. This strip is then subdivided at the level of each hair follicle unit. Each square section of the scalp thus obtained is then inserted into a suitable circular opening created by the surgeon in the recipient area.
The stitching of the two flaps after removing the strip of scalp creates a certain tension and also causes a slight change in the orientation of the hair. If people undergo this type of surgery several times, the scar can change, which allows a significant amount of follicular units to be used. Subsequent removal of the scalp strip naturally reduces the donor area to the surface. It is also clear that the postoperative course is more complex and painful than FUE
HST : Multiplication of follicular units, no scars, no bandage
As already mentioned, this technique of extraction is performed with a very small punch, which is 33% smaller than the smallest FUE punch. Very small wounds that occur naturally heal very quickly, do not require bandages and do not cause fibrosis
In addition, by removing only part of the hair follicle unit, the part that remains in place will be regenerated exactly and identically to the removed hair. This happens due to the action of the hair stem cells contained in the rest. This phenomenon allows regeneration of the donor area without the bottleneck caused by the complete extraction of follicular units and thus without depriving the patient of available follicular units of valuable follicular units.
This procedure can be repeated if important areas need to be restored without depleting the donor area and will be reformed every 9 months instead. This is actually a hair growth cycle. Grafts collected using this technique are very thin and virtually tissue-free. Hair stem cells are really naked in these grafts. Therefore, it should be treated with great care so as not to cause damage that may prevent regrowth after transplantation. The hair stem cells are then divided into two different sections. One remains in the donor area and the other is transplanted into the recipient area.
This phenomenon represents a significant advantage over conventional techniques where the number of follicular units available is limited. The HST technique has the advantage of not leaving scars or degrading the donor area, as re-growth occurs each time the follicular unit is partially removed.
In summary, HST technology has many advantages over other technologies. There are no scars, the postoperative course is very gentle and there are no bandages. It regenerates partially removed follicular units while proliferating follicular units, allowing recovery of very bald areas that are too large to be treated by other techniques at several consecutive stages.