Hair transplantation
is the medical process of relocating permanent hair from
the lower back and sides of the head. T
hese hairs are
transplanted into areas of thinning and balding along
the top and towards the front of the head, where after a
short resting period they grow and will continue to grow
for a lifetime.
The entire reason why
hair transplants are permanent, and not just a temporary
cosmetic procedure, lies in a simple physiological fact
that every man has a horseshoe-shaped area of hair
around the back and sides of the head.
Often referred to as
the monk's fringe, this area contains hair, which is
genetically programmed before birth to last a lifetime.
That's why even the most severely bald men you ever see
will still have this area of permanent, lifetime growing
hair at the back of their head.
The genetic
information in these hair roots causes them not to be
sensitive to male hormones (androgens) which begin to
appear during puberty.
In most men, hairs
along the top and at the front of the head are in
varying numbers and to varying degrees, sensitive to
these hormones.
Over a period of years
the hairs begin to respond to these hormones by
withering and decreasing the length and diameter of the
hair shaft until they revert back to being little more
than "peach fuzz" growing out of the follicle.
The loss of hair tends
to follow set patterns of recession, most notably above
both temples of the forehead and at the crown, forming a
"Friar Tuck" type bald patch. This is what is referred
to as male pattern baldness.
Expectations
The major reason for
complaints regarding hair transplants is that most
people's expectations are far too high.
The surgeon and/or
consultant should state clearly and precisely what
results can actually be achieved, as opposed to what the
client expects. Hair transplants cannot give anyone more
hair than they have, they can only redistribute the hair
that is already there.
These shattered
expectations are often the cause of bitter
disappointment to the patient. Good results can be
achieved but will never achieve the same head of hair
you had when your were eighteen or nineteen.
A patient should also
be aware that any treatment they have, has to thicken an
area of thinned hair.
In twelve months time
the original hair may also be lost so you will only have
the transplanted hair left, thus you may need further
treatment at extra cost, something you should always be
aware about.
Age must also come
into question with regards to hair transplants.
It is very rare for
anyone under the age of twenty one to be treated, the
reason being that it is still far to early to tell to
what extent his hair loss is going to advance.
The upper age limit is
not so critical and successful transplants have been
carried out on patients up to the age of sixty-eight.
Types
of Surgery
There are as many as
six different ways that hair can be surgically replaced.
Flap grafting, strip grafting, mini flap grafting and
square grafting are four methods.
These methods are not
used much nowadays and should be avoided if a clinic
suggests them to you.
They all involve
taking a large strip of skin with the hair roots intact
and replacing them in an area at the top of the head.
These results are
usually very poor and hair growth can be very erratic
and looks poor as the hair can grow back in any old
style.
The other two methods
are plug grafting which is what everyone associates as a
hair transplant and the newer named micro grafting which
as the name implies is a smaller method than plug
grafting.
The best results for
plug grafting are obtained on the crown as the
surrounding hair makes it difficult to notice the plugs.
When performed on the
front hairline they can leave a less than pleasing
effect rather like a doll's head or a toothbrush.
Micro Grafting
Nowadays clinics all use different terms to describe
transplants, such as micro grafting or mini grafting.
Micro grafting as we will call the treatment, is the
most common type of hair transplantation procedure performed
today and, the procedure that produces the most natural
results.
Micro grafting depends upon the use of larger
grafts to create density and smaller grafts to produce
naturalness.
Whereas a normal graft will hold about
twelve hair roots, a micro graft will hold about three
or four hair roots, provided that the surgeon is skilled
enough.
The mini-grafts (which are smaller than the old plugs)
are generally used in the central part of the scalp
where they give "bulk" to the transplant,
but on their own don't normally look completely natural.
Smaller micro-grafts are then placed in front of, and
around, these larger grafts to produce a more natural,
soft hairline and overall appearance.
A completely natural hairline is now possible by transplanting
micro grafts to give a patient a natural look, something
that is not possible with full sized grafts.
By using a combination of large grafts at the back
and using progressively smaller micro grafts towards
the front it is now possible to obtain excellent results
that are virtually impossible to detect.
Hair roots could be transplanted one hair at a time
if so required. Whilst this procedure would be completely
undetectable, the finished effect would not achieve
the thickness that can be obtained by using a combination
of large and small grafts.
Transplanting hair roots
one by one would be very time consuming and is extremely
expensive.
In the normal plug grafting technique healthy hair
roots from the back and the sides of the scalp are transferred
to the top of the scalp where needed by using an instrument
called a trephine.
This instrument has a circular cutting
edge and the circular grafts it takes will vary in size
from 2mm diameter to about 5mm diameter.
As many as
600 grafts could be removed from any one patient, although
a maximum of 50 grafts should be removed in any one
session of treatment.
Nowadays the donor tissue is removed with a multi-bladed
knife that produces long thin strips of donor tissue,
although single strip harvesting now appears to be a
superior method.
After anesthetizing the donar area, a strip of scalp
about ½" to 1" wide and 4-5" long
is removed. Since the scalp is very elastic, the resultant
gap is easily pulled together and sutured closed.
The
hair on the back of the head conceals the small thin
suture line
The surgery team then divides the donor hair strip,
which contains thousands of hairs, into individual "grafts".
Micro-grafts contain one or two shafts of hair. Mini-grafts
contain three to eight shafts of hair per graft.
With
these techniques the surgeon transplant as few as one
or two hairs at a time, which creates a more natural
look rather than the "toothbrush" or "plug"
effect.
These hair grafts are then implanted into recipient
sites in the balding area. Micro-grafts are inserted
into tiny punctures in the skin and mini-grafts into
extremely small (0.5 mm to 2 mm) openings.
This achieves
a more natural appearance. This is a big improvement
over previous techniques where transplants were inserted
into holes in the scalp. This often resulted in an abnormal,
compressed hair.
The cosmetic effect of the placement of the grafts,
the insertion angles, and the combinations of grafts
are dependent of the skill and the "artistry"
of the transplant surgeon.
The shape of the patient's
face and predictions of areas of future hair loss must
be planned carefully for optimal cosmetic results.
Most patients normally used to need three treatments
to achieve an acceptable head of hair.
However nowadays
the number of sessions could vary from one to six depending
on how much work is involved, particularly since micro
grafting techniques mean that one treatment can be suitable
and involve very little discomfort and inconvenience.
Does It Hurt ?
Yes is the simple answer - The amount of pain varies
between patients.
A lot of people say that it is like
a visit to the dentist, however as with dentists there
are good surgeons and bad surgeons.
Probably the most painful part of the procedure is
during the injection of the anesthetic when a large
number of injection are made to the donor area.
Often
the patient is given a mild sedative to relax them before
any treatment is carried out. It is normal in some cases
to spray the area with a freeze spray to reduce the
pain of the injections.
About fifty percent of customers will probably experience
swelling on the forehead and face after a transplant.
This can be treated with an ice pack but in some cases
is extremely noticeable and a return to work usually
needs to be ruled out.
Patients have commented that their skull felt like
a lump of wood for weeks afterwards.
They were aware
of something having been done to their scalp but were
not in any pain. The effects always seemed to wear off.