患者問：
One aspect puzzles me. In FUT a strip is removed and closed so a part of the scalp vanishes and is replaced by a thin scar. The areas adjoining the scar retain their hair density and very often with trichophytic closure hair grows out of the scar, again with no reduction in density.
In FUE follicular units are harvested individually. No large scar is generated but hundreds (thousands?) of tiny ones. However (and this is my main point), donor area density is reduced because the scalp from where the hair is removed does not vanish and is essentially now a tiny bald spot.
Does this mean FUE thins out the donor area in return for not creating a long FUT scar? Is that the trade-off?
翻譯:
有一方面我比較迷惑. 在FUT中,一塊帶頭髮的皮瓣被移去,然後頭皮被縫合.所以被提取區無毛髮而且以一塊疤痕取代原來的毛髮部位.
而臨近疤痕區域的頭皮依然保持其原有密度,移植之後的皮瓣處所生長出來的頭髮數量變化相對不大,而且密度不會減少很多.
在FUE中,毛囊單位是單個被提取的.沒有大的傷疤,但是形成數百數千個小點.供體區的頭髮密度降低,因為供體區的頭皮沒有被整塊移去,只是一些極微小的小點
是否意味着,fue形成的小點代替了疤痕的形成?,這是否是一種平衡?
博士答：
Thanks for asking, as this can be a bit abstract.
When you remove a strip of hair (say 1/2 inch wide by 4 inches long) you are effectively removing skin and pulling the scalp from top and bottom. This in effect stretches the scalp/skin along with the hairs. So if you have a very, very precise measuring tool of hair density before and after the surgery, then you will definitely see a decrease in hair density after the surgery… but this reduction in density is very low and not perceptible to the naked eye.
When follicular unit extraction (FUE) is performed, many hundreds and thousands of hairs are taken out (and never grow back on that spot) so it is easy to see how this would also reduce the donor density.
謝謝你的提問,這個有點抽象
當從你的毛髮區提取一塊帶發皮瓣時,一塊頭皮會被從頭後或者兩側割去,如果你有一種非常精密的儀器計算頭髮密度,在術前術後.那麼你會看到一個明顯的減少.,但是眼睛是無法分辨減少的數量的
當施行FUE手術時,數千毛囊單位被提取(被提取出, 不會再長出頭髮來). 如果集中在一區域提取毛囊數量相對大時,會看到供體區頭髮有點稀少減少。
