2013年3月24日星期日

advances in hair transplantation

    A standard procedure for hair transplantation involves removing hair from the donor area at the back of the head where the follicular unit grafts are dissected under a microscope. These grafts are then preserved in saline and are then transplanted on a bald patch on the crown area of ​​the scalp.


    Given the nature of the time-consuming and tedious procedure, a hair transplant surgeon is often able to transplant only about 500 to 600 follicular units per day. However, thanks to recent advances in hair transplantation, this technique is often replaced by the follicular unit extraction (FUE). The cost per graft of FUE is typically twice the cost of standard procedure unit follicular hair transplant discussed above, but it is relatively quick and minimally invasive.
Some advanced hair transplant
    In a typical procedure FUE punch small circle is done in the field of donors to directly extract 1, 2, 3 and 4 hair transplant follicular units. The follicular units extracted using this process is usually called "dissection" where a punch is made to envelope the entire follicular unit separating it from the surrounding soft tissues.
Once the underlying follicular unit is separated from the surrounding tissues, it is easy to remove using tweezers. The small holes left after the follicular unit extraction gradually heal over the next few days and are not detectable to the naked eye once the patient's hair is down. The healing time is much less than the extraction procedure donor strip.
While the FUE procedure has been adopted by most hair transplant clinics, the standard strip method of excision is still the hair transplant procedure the most popular because it is more economical than the FUE.
In addition, due to some recent hair transplant such as the use of technical trichophytic closure, linear donor scar created by the strip excision procedure is now often rendered almost undetectable to the naked eye. This advance in the art of hair transplant FUE procedure has been relatively less attractive.

Research hair transplant
Furthermore advances in hair transplant procedures transplantation, numerous studies are also underway to clone hair. If research on hair transplantation is successful, it will be possible to make several copies of donor hair in the laboratory. The application of this technique would be used as hair transplant. In traditional procedures, the biggest limitation is often the donor is not able to meet the required density. However, hair cloning overcomes this problem by having the amount of hair to be grown in a laboratory from a single donor hair and then implanted in the scalp.
research on hair transplantation for cloning is very difficult and there are many obstacles that have to be overcome regarding the safety and cosmetic characteristics of the cloned hair. Some hair transplantation research has also provided some breakthrough drugs for hair loss as dutasteride.

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