Can A Hair Transplant Restore Hair Loss After Radiation Treatment?
Q: I received radiation therapy to my scalp two years ago to treat a brain tumor. I lost my hair during treatment and it has not grown back. The doctors said that this treatment might result in permanent hair loss. Is a hair transplant a viable option after radiation treatment? — K.G., Darien, C.T.
A: Unlike chemotherapy which generally causes a reversible shedding of hair (called anagen effluvium), radiation therapy can cause both reversible shedding and the permanent loss of hair follicles (scarring alopecia). Hair can be successfully transplanted into these scarred areas – but there must be enough donor hair to do so. If the radiotherapy was localized, a hair transplant procedure is often quite effective – although several procedures may be required to achieve adequate coverage of the irradiated areas.
What is the Main Advantage of Robotic FUE Over Manual FUE?
Q: I’ve heard that robotic-assisted FUE is better than manual FUE, but what exactly is the main advantage of Robotic FUE? — N.K., Bergen County, NJ
A: Robotic FUE is a significant improvement over other FUE techniques for a number of reasons. The accuracy and ability of a robot to perform countless repetitive motions are key reasons why robotic techniques are an improvement over manual techniques.
In a manual procedure, the skill and speed of a physician are under constant stress, as he or she must follow the angle and depth of the hair precisely hundreds to thousands of times. This task is almost impossible for even the best surgeons to perform without risking harm to the integrity of the follicles. Entering the skin at the wrong angle risks transecting or cutting the follicles and may render them useless for transplantation. Making too shallow an incision can also damage follicles, as the important base of the follicle can become sheared off when it is subsequently extracted.
The robot is engineered to avoid these problems, and so the number of viable grafts that the robot extracts is increased. As a result, the likelihood of the success of the transplant is greater using the robotic system.
Can A Robotic Hair Transplant System Create a Natural Looking Transplant?
Q: I’ve heard it takes the artistry of the surgeon to create a natural looking hair transplant. How do you do this with a robot? — S.S., Shanghai, China
A: I currently create the recipient sites by hand using different size needles. They determine the angle, direction and distribution of the grafts, and these three variables determine the aesthetic aspects of the hair transplant.
In this new robotic-assisted process, the surgeon designs the hairline and delineates the area to be transplanted directly on the patient’s scalp. The surgeon then photographs the patient’s scalp and feeds the photograph into the robot’s computer to create a digital 3-D image. The doctor, in order to have the robot mimic what he would do by hand, can then manipulate various parameters, such as hair angle, direction and density.
Why does the ARTAS® Robotic System only do FUE, Not FUT?
Q: Why does the ARTAS® Robotic System only do FUE, not FUT? — V.Z., Chicago, Illinois
A: Currently the robot is only used for harvesting grafts from the donor area. In FUE, the doctor punches out hundreds to thousands of individual follicular units from the back and sides of the scalp by hand using a small round instrument called a punch. The punch has to be held at exactly the right angle, with just the right pressure applied, stopped at a precise depth and, during this time, rotated (or spun mechanically) without changing the alignment.
As one can imagine, this exhaustingly tedious process can best be done using the precision of a robotic device.
In FUT, the harvesting is done by a surgeon using a scalpel to make a long incision in the back of the scalp. It only takes a few minutes. The harvested strip is removed and then placed under dissecting microscopes where the individual follicular units are isolated. This dissection, thus far, can only be done by hand. There is no robotic technology available to do this.
Harvesting the donor hair, of course, is only one part of a hair transplant. The other steps, recipient site creation (making the holes that the grafts are placed into) and actually placing the grafts into those sites are similar in both FUE and FUT.
It is anticipated that robotic site creation will be available in the fall of 2014 and robotic graft placement, the third and final step, about two years after that. At that time, the robot will be able to perform the entire FUE procedure and the last two parts of the FUT procedure.
Of course, the robot doesn’t do the surgery alone. The physician must input all the information regarding the design and planning of the procedure and closely monitor each step of the robotic process. Unlike automating industrial production, the human scalp has great variability, so there is no one formula that will be appropriate for every patient. Physician skill and involvement is just as important in robotic hair transplantation as it is with every other type of surgical hair restoration procedure.
If I Was Told That I Am Not A Good Candidate For An FUT Procedure Can I Have FUE?
Q: At one time, I was told my donor area was not sufficient for an FUT hair transplant procedure. Does this also mean I’m not qualified for a FUE procedure either? — K.K., Houston, T.X.
A: Great question. You are not giving me quite enough information to answer your question specifically, so I will answer in more general terms. If your donor hair supply was not good enough to do FUT (i.e. you have too little donor hair and too much bald area to cover) then most likely you will not be a candidate for FUE either, since both procedures require, and use up, donor hair. That said, if don’t need that much donor hair, but the nature of your donor area is such that a linear FUT scar might be visible then FUE might be useful.
An example would be the case in which a person has limited hair loss in the front of his scalp, has relatively low donor density, and wants to keep his hair on the short sides. In this case, FUT would not be appropriate as you might see the line scar, but we might be able to harvest enough hair through FUE to make the procedure cosmetically worthwhile. Remember, with low density neither procedure will yield that much hair to be used in the recipient area.
Another example is an Asian whose hair emerges perpendicular from the scalp so that a line incision is difficult to hide, i.e. the hair will not lie naturally over it. A third example is where the patient’s scalp is very tight. In this case, the donor density might be adequate, but it would just be hard to access it using a strip FUT procedure. In this case, FUE would also be appropriate.
From these situations, one can see that the decision to perform FUE vs FUT, or even a hair transplant at all, can be quite nuanced and requires a careful evaluation by a hair restoration surgeon with expertise in both procedures.
Why Am I Still Losing Hair (Shedding) After 6 Months on Minoxidil And Finasteride?
Q: I have been using an increased dosage of Propecia now for around 8 months and Rogaine for about 6 months. I know that shedding can be expected for the first 3-6 months, but I believe I am now beyond that timeframe. Have you seen cases in which these products merely exacerbate hair loss without the expected regrowth? — N.E., Travilah, Maryland
A: It is a bit long to still see shedding, but from my experience, either the medications are working (and you are still in the shedding phase) or you are not responding to them. I have not seen minoxidil or finasteride worsen hair loss. My advice would be to continue the same course for at least a year before re-evaluating their use.
What Part Of a Hair Transplant Can Be Done By a Robot?
Q: Is it true that hair transplants can now be done totally by a robot? — M.S., Los Angeles, California
A: The ARTAS Robotic System, developed by Restoration Robotics, is the most advanced technology for extracting grafts (the first and most difficult step in a Follicular Unit Extraction procedure), but it cannot yet do the entire hair transplant procedure, nor can it work without the supervision of the hair restoration surgeon.
Currently, the ARTAS System assists the surgeon in performing the first part of an FUE hair transplant (i.e., the extraction phase) with greater precision and consistency than can be done by hand. Engineers and researchers are currently developing the ARTAS to do the remainder of the procedure as well, i.e., making recipient sites in parts of the scalp that have lost hair and then implanting the harvested grafts into these sites.
The next step, recipient site creation, will be available in the latter half of 2014. Dr. Bernstein is already testing a beta version of this new technology. We anticipate that within two years, under the supervision of the surgeon, the ARTAS robot will be performing most of the FUE hair transplant procedure.
Is a Hair Transplant Possible Using Someone Else’s Hair?
Q: Can you do a hair transplant using someone else’s hair? — K.K., Garden City, N.Y.
A: Unfortunately, this is not possible because your body would reject the hair transplant without the use of immunosuppressive drugs. The problem with immune suppressants is that they will lower your natural immune response, increasing your susceptibility to infections and even cancer, and you’ll have to take them for the rest of your life.
A transplant using someone else’s hair is also not desirable for aesthetic reasons. There’s the style of the hair, its texture, thickness, color, etc. Trying to find the perfect donor whose hair would complement and flatter your particular features and blend in with your remaining hair would be a significant, if not impossible, challenge. It would be possible, however, to transplant the hair from one identical twin to another, but most likely if one went bald, so would the other.
Do You Transplant Hair Evenly if I Part My Hair on the Left?
Q: For patients who intend to keep their hair parted on the left side, do you follow any rule of making the left side more dense then the right or is it distributed evenly? — M.S., Simi Valley, C.A.
A: On a first hair transplant procedure, I generally place the sites/grafts symmetrically, even if a patient combs his hair to one side. The reason is that the person may change his styling after the procedure and I like to have the first hair transplant symmetrical for maximum flexibility. An exception would be a person with limited donor reserves. In this case, weighting on the part side is appropriate in the first procedure. Once the first hair transplant grows in and the person decides how he wants to wear his hair long-term a second transplant can be weighted to accommodate this. Weighting can be done in one, or both, of two ways: 1) by placing the sites closer together on the part side or 2) by placing slightly larger follicular units on the part side.
If a person decides to comb his hair back, then forward weighting is used. For greater details on this, please see some of my publications where I address the aesthetics of hair transplantation:
When will Dr. Christiano’s Research on Follicular Neogenesis (Hair Cloning) be Available?
Q: I read, with considerable interest, your excellent article on the latest in Dr. Angela Christiano’s work on follicular neogenesis. It seems to me that the next questions we should be asking are: when will testing begin on human subjects and when might her research develop into a hair cloning treatment that is available to the general public?
A: It is very difficult to determine when this phase of the research might begin and it is even harder to predict when treatment might become available. First, the technology is not quite there. Dr. Christiano showed in her recent paper that changing the environment of skin (fibroblast) cells so that they could form into 3-D cultures enabled them to induce human hair-follicle growth. Although this was a major step towards cloning hair, additional work needs to be done before we will be able to mass produce fully-functioning human hair follicles to the extent needed for hair transplantation.
In addition, research on human subjects requires that experiments meet rigorous federal regulatory standards and these take time to be approved and carried out. Supposing that further study of follicle neogenesis results in a breakthrough treatment for hair loss, this treatment would still require meeting substantial efficacy and safety requirements of the FDA before it would be made available to the public. We will be communicating important developments as they occur through our Hair Cloning Research section and through periodic updates in the Bernstein Medical Newsletter.
Hair loss has a variety of causes. Diagnosis and treatment is best determined by a board-certified dermatologist. We offer both in-person and online photo consults.
