Hair Restoration Blog

This is another article from Dr. Mohebi that is recently published on the cover of the Hair Transplant Forum International: the journal of the International Society of Hair Restoration Surgery.

The laxometer was invented by Dr. Parsa Mohebi two years ago. Laxometer is a device that is used to measure the mobility of scalp skin, which is a crucial piece of information for hair transplant surgeons before hair restoration surgery with strip method.

Evaluation of scalp laxity prior to hair transplant procedures has been a clinical subjective evaluation that varies with each surgeon and each visit. Hair transplant surgeons have been traditionally assessing the laxity of the scalp with manual palpation of the donor area and by moving the scalp horizontally or vertically, estimating the scalp movement against the occipital bone.

Measurements have been recorded with subjective term such as very loose, moderately loose, average, moderately tight, and severely tight. With the use of the laxometer we are provided a more precise metric for use in hair transplant surgery.  You can read the full article “How to assess scalp laxity” on US Hair Restoration Website.

Many hair transplant patients are concerned with the scar of cosmetic surgeries including hair transplants. Several techniques have been suggested to minimize the scar such as corticosteroid injections, irradiation, ultrasound, silicone applications into and around the forming scar. However, the effects of most these methods were far from satisfactory. Botox is a new method that could be used to minimize the size of both facial and scalp scars. The use of Botox for reduction of facial scars from surgeries was first suggested by plastic surgeons who were trying to reduce postoperative effect of facial muscles on stretching and widening of scars.

In many patients with ugly scars of the face, botulinum toxin (Botox) was used successfully to induce temporary paralysis of the muscles during revision surgery. Botox with the same mechanism can help minimizing tension on the healing wound edges until collagen could mature and scar if completely adnd firmly formed.

The use of Botox has been suggested for the treatment of stretched scars on the face by many plastic surgeons now. Hair transplant surgeons also use Botox for treatment of the hair transplant widened scars of the donor area that do not show improvement with a simple scar revision procedure. There are reports of successful decrease in the final size of the scars with injection of Botox into the muscles surrounding the maturing scar. We at the Los Angeles hair transplant offices of US Hair Restoration don’t offer Botox to every patient who is having a hair transplant surgery through strip technique, but it certainly could be used for the patients who suffered from widened scars of prior surgeries and did not respond to the other methods of scar revision.

Q:

Thanks Dr Mohebi,

for your time and information, really appreciate it. I have seen a neurologist who gave steroid shots and a pain management Dr who gave an occipital nerve block, neither worked. Had Botox injection into the area also. EMG and neck MRI tests didn’t show anything. Is the donor incision sometimes deep enough to damage muscle such as the occipital muscle or trapezius? Deep enough to damage the fascia tissue?

thanks again,

A:

It seems like you have done the proper work up for evaluation of your donor scar complication. If a hair transplant is done by a skilled hair transplant surgeon it should not be that deep to injure the fascia. In most patients it is easy to find the subcutaneous fat, which is our safe zone. Even if the fascia is injured, it should not create such a problem. The area of the strip is generally much higher than the levels of the neck muscles. Injury to the muscle and fascia should not cause any such feeling without involvement of the nerves.

I cannot imagine anything except the nerve damage to be the cause of your current problem. I occasionally have seen patients with some unusual sensation after old surgeries that get better when they get a repeat hair transplant. The reason for the improvement is that the hair transplant surgeon removes the scar and by doing that can release the adhesion of scar of first hair transplant and underlying tissues including the nerves.

Hi Doctor,

My son has had a hair transplant years ago with old techniques and he has bad hair transplant scar now. He now wants to shave his head, but the scar of hair transplant on the back of his head may become exposed. Do you perform hair transplant scar repair or do you recommend any procedure that can help with hair transplant donor scar coverage?

Answer:

Hair transplant with strip technique can cause a linear scar that could be visible on the back of head if the patient wants to shave his/her head. A hair transplant scar is not limited to a bad hair transplant technique and it might have to do with one’s personal healing process too (some people are generally better healers compared to the others).

The good news is that we have methods to minimize the size of the scars nowadays and if you have bad hair transplant scars from bad transplants in the past, there are several new methods that can help improving the appearance of the donor scar. A hair transplant scar could be improved by repair of linear widened scars with different methods that we perform at our Los Angeles office of US Hair Restoration. Dr. Mohebi is the inventor of the axometer, a device that measure the laxity of the scalp precisely before hair transplant surgeries. Good measurement of the scalp laxity is one of the best ways to minimize development of donor wound complications and widening of donor scar and the Laxometer is the device to do these measurements.

One method is through simply excising the scar. Excision of the donor scar may be helpful for some donor scars. After removing the scar, hair transplant surgeon can close the skin with the trichophytic closure method in which a small wedge on one or both sides of the skin edge is removed and the skin is closed primarily. Trichophytic closure allows some hair follicles to grow new hair into the final scar. Presence of hair helps making the hair transplant scar become invisible.

Hair transplant donor scar coverage could also be performed by transplanting hair into the scar. Hair could be harvested from other areas using FUE or mini-strip techniques. Again, presence of the hair inside scarred area could trick the discriminating eye and the scar would become less detectable. Patients may need more than one hair transplant procedure into the donor scar for minimizing the difference between the densities of hair in scar and surrounding areas.

The last method that could be used to camouflage the linear scar is by tattooing the scar. People who plan to keep the hair very short can easily tattoo the scar with the figures of short hairs so it seems that there are some hairs present in the scar area, which can help minimizing the visibility of the scar.