Showing posts with label FAQ. Show all posts
Showing posts with label FAQ. Show all posts

Thursday, February 22, 2007

Question: Exclusive use of single follicular units (SFU) seems to be the current norm, why does NHT insist on using mixed sized grafts?

Question: Exclusive use of single follicular units (SFU) seems to be the current norm, why does NHT insist on using mixed sized grafts?

Answer:
There are a number of reasons why many surgeons today use only SFU for hair transplants. Exclusively using SFU for hair transplants provides a more even "look" and fewer scabs immediately after surgery. As an additional benefit, surgeons can pack SFU more densely than modified follicular units.

However, there are three concerns:
1. Higher telogen (resting) stage hair loss due the process of thin graft preparation

Humans typically shed 60 to 100 hairs per day. These telogen stage hairs, or resting hairs, amount to 10% to 15% of our total hair at any given time. After about three months, the hairs re-grow and start the natural process over again. Telogen stage hairs are of concern for hair transplants because they are effectively invisible. In the process of preparing an SFU, the technician must trim off the tissue next to the SFU grafts possibly discarding the invisible hair inside the tissue. 10% to 15% of hair may be lost in this trimming process.

Photo: 10% to 15% of hairs are in Telogen Stage and are invisible.


2. Poorer growth rates when using thin grafts compared to "chubby" graft
Dr. Seager, Dr. Beener, Dr. Beeher, Dr. Reed and Dr. Raposio each conducted studies to compare the results of chubby and thin grafts. These studies found that re-growth rates for chubby grafts' are 20% to 51% more than the thin grafts. So far we haven't heard any report indicating that the thin graft's growth rates are better.

Photo: Thin follicular units-almost no tissue attached

Photo: Thin Follicular Units - tissues are trimmed off


Photo: Chubby Follicular Units


Photo: Chubby Modified Follicular Units

3. Cost to patient is almost double when using SFUs only

The cost associated with a hair transplant surgery is also an important issue. We work hard to earn our incomes - why should we waste it if we have a more affordable alternative to achieve our goal.

For example, here is a cost estimate for a typical SFU-only hair transplant for a hypothetical patient.
Assumes:

  • A recipient area of 80 cm2
  • A donor size of 40 cm2 needed for a 50% transplanted density
  • Donor area contains about 100 FUs in one cm2
  • Total grafts needed are around 4000 SFUs
  • Total cost is around $20,000 at $5 per graft


In reality this surgery would likely cost much more than this estimate; in this calculation we didn't take into consideration potential hair loss during surgery or the growth rate.Remember that hair loss is a life long process. A patient needs to receive touch-up hair transplants once in a while to maintain a good "look". Over the longer term, the exclusive use of SFUs adds up to quite a sum!

Wednesday, February 07, 2007

Question: Do I need to come back for suture removal?

Question: Do I need to come back for suture removal?

Answer:


At NHT Medical Center we use a polyglactin 910 suture to close the donor area. I prefer using sutures to staples because they are more comfortable for the patient and result in a less noticeable scar. In addition, these absorbable sutures begin to fall off on their own 7 to 10 days after surgery as the wound heals. The patient does not have to return for suture removal saving him a trip back to the office.

This photo is of a donor incision five days after surgery. At this point you can no longer see the suture.



An article in the 1999 Journal of the Canadian Dental Association reported on the advantages of the polyglactin 910 suture compared to staples. In the survey, researchers evaluated 42 patients with scalp wounds from cosmetic surgeries. They closed half the wound with the irradiated polyglactin 910 vicryl rapide fast-absorbing suture and the other half with traditional staples. In the study of these 42 patients they found:

· No inflammatory reaction in the areas closed with the absorbable sutures compared to 1 case in the wounds closed with staples
· An average pain score of 1.82 reported by patients for the sutures compared to average pain score of 6.7 for the staples
· No patient reported suppuration, hypertrophic scarring, or alopecia with either method
· All 42 patients in the sample preferred sutures to staples

Wednesday, January 03, 2007

What is NHT's philosophy for hairline design?

Question: What is NHT's philosophy for hairline design?

Answer:

We believe that one’s hairline should be designed in according to one’s preference. In general, a hairline design should take into consideration the shape of one’s face. For instance, most Caucasians have longer and narrower faces, therefore, longer and narrower hairlines are considered. Whereas a flatter hairline may suit a square face better, as is the case for many Asian faces.

We also recommend that the center of hairline be at least 1.5 cm higher than the highest wrinkle in the face.

But person is unique and everyone has different preferences. A few people prefer to have lower and flatter hairlines. They are mature enough to drink, vote, and to be in a jury. Why can't they decide what kind of hairline they want? In situations like this, we will offer our advice repeatedly, but also respect the patient's decision. He or she has the right to have what they want. As long as the person feels great about his hairline, why should we judge him with our standard?

An example of a low hairline requested by my patient.