植发手术后到底有多少毛囊单位能够成活？

爱发如命

今天在威廉Rassman医生的网站看到一个关于植发手术后，讨论毛囊成活率的帖子，觉得分析的有点意思，转到这里来，希望能和大家一起探讨下。

A man came to see me last week with a problem following his hair transplant at another clinic over a year ago. The surgeon told him that 6600 grafts were transplanted (in three sessions) using the follicular unit extraction (FUE) technique, which he guaranteed has a yield of over 90%. The patient wanted to know if his surgery actually reflected 6600 grafts, so at the patient’s request, we counted the actual grafts that grew. We divided up his head into 1cm square units and then counted the individual grafts inside those squares. The count yielded 2092 grafts of which approximately 50% had only one-hair and 50% had two-hairs, totaling approximately 3100 individual hairs. The hairs did not look very healthy, but the patient had fine hair in his donor area, so I suspect that the fullness reflected the low volume of each hair that survived.

I actually had the opportunity to measure his density before he decided to have his surgery with another doctor. His initial preoperative donor density measured 2.4 hairs per mm square. In my experience this type of donor density usually yielded about 15% one-hair grafts, 65% two-hair grafts, and the rest would be three-hair grafts. Estimating the hair count from the 6600 grafts he expected to grow, he should have had hair growth that would reflect (1) approximately 3960 hairs from three-hair grafts (20% of the 6600 grafts), (2) 8580 hairs from two-hair grafts (65% of the 6600 grafts) and (3) 990 single hairs (reflecting 15% from one-hair grafts)… for a total of 13,530 hairs that would have grown from a 100% successful harvest. Estimating an FUE yield of 90% (a reasonable estimate for FUE and his surgeon’s guarantee of that amount) from a projected successful hair count from the 6600 grafts, I would reduce that count to 12,204 hairs (90% of the 13,500 hairs estimated above). He should compare the actual hair count we obtained in the counting process of approximately 3100 hairs which reflects a loss of 9104 hairs. The hair count therefore reflected a substantial reduction in the hair yield of those grafts that grew when compared to what should have grown. When one would count the grafts that did not grow, the death rate of the hairs was almost three times what did grow.

Where did those missing hairs go? I suspect that they were killed at the time of the FUE either through drying of the grafts during placement, trauma from the technicians placing the grafts, or transection of the grafts (a common problem in those surgeons who really do not have mastery of the FUE technique).

福娃欢欢

看不懂,有中文翻译吗?

爱发如命

其实下个翻译软件，有点基础就能明白其中意思咯。

有心人仔细看看，就能明白国内一些医院的胡乱吹嘘了。

笨笨猪

本人英语也不是很好，既然大家都说看不懂，那我就献丑了，不顺的地方还请大家别怪。。

A man came to see me last week with a problem following his hair transplant at another clinic over a year ago. The surgeon told him that 6600 grafts were transplanted (in three sessions) using the follicular unit extraction (FUE) technique, which he guaranteed has a yield of over 90%. The patient wanted to know if his surgery actually reflected 6600 grafts, so at the patient’s request, we counted the actual grafts that grew. We divided up his head into 1cm square units and then counted the individual grafts inside those squares. The count yielded 2092 grafts of which approximately 50% had only one-hair and 50% had two-hairs, totaling approximately 3100 individual hairs. The hairs did not look very healthy, but the patient had fine hair in his donor area, so I suspect that the fullness reflected the low volume of each hair that survived.

上周一个人因为植发的问题来见我，这个人一年之前在另一家机构做过执法。那里的医生告诉他分三次共植发6600毛囊单位，三次植发使用的都是FUE技术，且保证有90%以上的成活率。这个患者想知道是否真的移植了6600毛囊单位，为此我们计算了他真正成活的毛囊。我们将这个患者的头表分为一平方厘米的方格，然后计算给个方格里的毛囊数量。计算的2092个毛囊单位，其中50%只生长一根头发，两外50%长两个根头发，总共大约有3100根头发。这些生长出来的头发看上去不怎么健康，但是他的供体处的头发却很好。因此我想供体处头发浓密会显得移植的头发成活率低。
I actually had the opportunity to measure his density before he decided to have his surgery with another doctor. His initial preoperative donor density measured 2.4 hairs per mm square. In my experience this type of donor density usually yielded about 15% one-hair grafts, 65% two-hair grafts, and the rest would be three-hair grafts. Estimating the hair count from the 6600 grafts he expected to grow, he should have had hair growth that would reflect (1) approximately 3960 hairs from three-hair grafts (20% of the 6600 grafts), (2) 8580 hairs from two-hair grafts (65% of the 6600 grafts) and (3) 990 single hairs (reflecting 15% from one-hair grafts)… for a total of 13,530 hairs that would have grown from a 100% successful harvest. Estimating an FUE yield of 90% (a reasonable estimate for FUE and his surgeon’s guarantee of that amount) from a projected successful hair count from the 6600 grafts, I would reduce that count to 12,204 hairs (90% of the 13,500 hairs estimated above). He should compare the actual hair count we obtained in the counting process of approximately 3100 hairs which reflects a loss of 9104 hairs. The hair count therefore reflected a substantial reduction in the hair yield of those grafts that grew when compared to what should have grown. When one would count the grafts that did not grow, the death rate of the hairs was almost three times what did grow

在这位患者去别的机构植发之前，有幸我见过到这位患者。手术之前他的供体处的头发资源很好，每平方毫米生长2.4根头发。所以从这位患者的供体区提取的毛囊单位，其中的15%是只生一根头发的毛囊单位，65%是只生两根头发的毛囊单位，剩下的是生长三根头发的毛囊单位。所以，预计他期望从6600毛囊单位里生长出来的头发应该是3960根头发来自于所有已知毛囊中的20%的毛囊，这些毛囊生长三根头发。8580根头发来之那些生长两根头发的毛囊，这些毛囊占所移植毛囊的65%，990根头发来之于生长单根都发的毛囊，这些毛囊占所移植毛囊的15%。因此，总计应该有13530根头发来自于这个100%成功的手术。那么fue技术移植的6600毛囊单位应该长出12204根头发，那么和实际生长出来的约3100根相比，有9104根头发没有生长出来。实际成活的毛囊和所种植的毛囊数量相差很大，死亡的毛囊是成活的3倍。

Where did those missing hairs go? I suspect that they were killed at the time of the FUE either through drying of the grafts during placement, trauma from the technicians placing the grafts, or transection of the grafts (a common problem in those surgeons who really do not have mastery of the FUE technique).
那些没有长出来的头发哪里去了？我猜测那些毛囊在被种植之前就变干了，或者是分离毛囊时被损坏了（对那些FUE技术不精通的医生来说，这是一个常见的问题）

沉醉在胸口

70%?80%这个可没有人能够保证的啊

福娃欢欢

不是都说成活率在95%嘛。
那这个人的手术做的肯定有问题。是在国外做的吗？

hibaby

我看明白了

所以，大家做手术一定要认真，别被人给忽悠了

xiaohuihui19882

看不懂。。。。

junehu1986

我猜想我老公就是被忽悠的，大家来看看我的帖子吧，看能不能想办法证明成活率不到95%，以便咱们发友维权啊。