Reconstructive
Surgery
1.
Implant Reconstruction
2. Flap Reconstruction
3.
Postoperative Preparation
4. Postoperative
Care
Today,
most cancer specialists agree that every woman is a candidate for
breast reconstruction after mastectomy, regardless of the extent of
her disease. This is a fairly recent consensus. Since 1981, the number
of women seeking reconstruction has jumped by 114%. New techniques
have enabled us to create a breast that comes very close to matching
the opposite, natural one. Experts agree that in most cases, reconstruction
does not interfere with chemotherapy and other types of cancer treatment,
or with the physicians ability to detect any recurrence of the disease.
Further, there is no evidence that breast reconstruction promotes
cancer development.
More and more women are undergoing breast reconstruction at the time
mastectomy is done. Women who have immediate reconstruction wake up
with a breast mound already in place and never experience the shock
of having no breast at all, nor do they go through as much of a grieving
process. Studies at the national Cancer Institute found that these
women were less anxious, less depressed and less hostile. They were
happy with the results of their reconstruction as were the women who
waited. It also eliminates the need for another major operation. However,
some women don't feel comfortable weighing all the options while they
are struggling to cope with the cancer diagnosis and prefer to postpone
reconstruction. You need to decide what is best for you.
Now
let's explore some of the reconstructive options available to you.
In general terms, breast reconstruction often involves more than one
operation. The initial stage, in which the breast mound is created,
takes place in the hospital under general anesthesia. One or two additional
procedures, such as surgery to replace a tissue expander with an implant
or to reconstruct the nipple and areola, take place at a later date,
often in an outpatient ambulatory surgical facility. Symmetry is a
primary focus of breast reconstruction. The ability to achieve symmetry
is largely dependent on choosing the reconstructive technique that
will most closely bring to the chest wall sufficient tissue to match
the size and degree of ptosis of the opposite breast. There are essentially
three methods of breast reconstruction available to achieve these
goals.
Implant Reconstruction:
Tissue expansion is similar to the stretching of a woman's abdominal
skin during pregnancy. A silicone rubber balloon is placed below your
chest muscle and skin and is gradually filled with saltwater solution
over period of several weeks by way of a small valve placed near the
armpit or within the implant itself. This is an office procedure that
takes just a few minutes and is relatively painless though you may
feel some discomfort for a few hours afterwards. After the skin has
stretched enough, the expander is removed in a second operation and
replaced with a permanent implant of the desired size. The skin has
a natural tendency to contract when the expander is removed so it
is common to slightly overstretch the skin prior to removing the expander.
The benefits of tissue expansion are the technical ease of insertion
and the ability to match a small, non-ptotic opposite breast with
a minimal amount of surgery.
Despite
these advantages, skin expansion and implant reconstruction have
significant drawbacks:
The
length of time it usually takes for the skin to stretch sufficiently
ranges from 3-4 months.
At least two operations are needed; one to place the expander
and another to exchange it for a permanent implant.
Repeated office visits for inflation.
Symmetery cannot be achieved in larger and ptotic breasts.
There is an approximately 10-15% risk of capsular contracture
where the tissue around the implant tightens and causes the implant
to heal firm and at times appear distorted. This can be corrected,
however, by surgically releasing the capsule.
Implant infection, displacement, deflation or extrusion
are other potential complications although quite infrequent.
Flap Reconstruction:
- Tram
Flap
- Back Flap
- Buttock
Flap
Flap
reconstruction is another type of restorative breast procedure which
is more complex then breast implantation but often gives the most
beautiful and natural looking results. This technique rebuilds the
breast with tissue taken from other parts of the body such as the
abdomen or back. Flap surgery is performed using a pedicle flap (in
which the donor tissue remains tethered to it's original site, retaining
it's blood supply) or a free flap (in which skin, muscle and arteries
are completely detached and transplanted to the chest). Let's explore
these procedures more carefully.
Tram Flap
The
TRAM flap (transverse rectus abdominus myocutaneous ) is the most
innovative form of flap surgery. In this procedure, a large section
of skin and fat is seperated from the lower abdomen while being
left attached to on or both rectus abdominaus muscles (paired muscles
vertically oriented on the abdominal wall). Through this attachment
runs a rich blood supply allowing the overlying tissue to survive
once relocated. If your surgeon determines that a very large amount
of abdominal tissue needs to be used to reconstruct your breast,
he may choose to use both of these muscles to assure good blood
supply to all the overlying tissue. In the more commonly performed
"pedicle" flap, the tissue is carefully twisted and tunneled
under the skin to the chest wall while tethered by the muscle. If
performed as a "free" flap, it is detached from the abdomen
with the muscle and transplanted to the chest wall using microsurgical
techniques. Compared to the pedicle TRAM flap, the free flap is
somewhat less destructive to the abdominal wall musculature however,
often requires significant more time to perform and runs the very
small risk of failure if the microsurgical connection of the blood
vessels fail. Additionally, because microvascular surgery requires
specialized training, not all plastic surgeons may perform this
method of TRAM flap transfer.
Both of the aformentioned methods of flap transfer are appropriate
in the properly selected patient. A thorough discussion of these
options with your plastic surgeon will help you in your decision
process.
Back Flap
The
third for of breast reconstruction is the latissimus flap. This
involves transferring a portion of skin and muscle from the back
to the chest wall while again leaving the blood supply intact by
way of a pedicle of muscle in the armpit. Typically only modest
amounts of tissue can be transferred with this technique, often
requiring the simultaneous use of a saline implant.
The
advantages of the latissimus flap are that if only a small amount
of tissue is needed to reconstruct the breast mound, it offers a
simpler way of using ones own tissue to do this. The drawbacks are
the limited amount of tissue available and the frequent need to
supplement the volume of the reconstructed breast with an implant
and the donor site scar along the upper back.
Buttock Flap
This
procedure involves the use of the lower buttock tissue consisting
skin and fat to reconstruct the breast. Because the donor tissue
is remote from the area to be reconstructed, the flap must be
transfered by way of microsurgery once it is detached and will
typically leave a significant donor site deformity. It is a tedious
and complex procedure usually reserved for those situations in
which the more traditional forms of reconstruction cannot be performed.
Preoperative Preparation
Regardless
of which procedure you chose we will want you to be in the best physical
condition before your surgery. This involves cessation of smoking
at least 2 weeks prior to surgery, which can have adverse effects
on healing, control of any pre-existing medical conditions such as
diabetes or high blood pressure and avoidance of aspirin containing
medicine for at least two weeks before your surgery. Also, if you
are overweight, and have the time prior to your surgery to loose weight,
this can significantly improve your recovery and wound healing abilities.
You will be asked to shower the evening prior to surgery and to avoid
anything by mouth after midnight. If you are undergoing the TRAM flap
procedure you may be asked to take a cleansing enema the day prior
to your surgery. Although significant blood loss is uncommon, if time
is available, you may also be asked to donate a unit of your own blood
should you need it at the time of surgery.
Postoperative Care
After
flap surgery, you should expect to be hospitalized from 3-5 days.
If you are undergoing implant reconstruction your hospitalization
may be as little as 24 hours. During this time you will have drains
which were placed at the time of surgery to evacuate any fluid that
may accumulate under the skin. These drains are often removed prior
to your leaving the hospital, however, if you are otherwise ready
to go home, you may be sent with the drains in place, to be removed
later in your doctors office.
Stitches may need to be removed after surgery however, you will more
likely have dissolvable stitches that do not require removal. At three
weeks you will be allowed light aerobic exercises and non-strenuous
activity. Full activity and heavy lifting can generally be resumed
at six weeks. Most patients feel strong enough to return to work between
4-6 weeks after surgery. If you are to undergo tissue expansion this
will most likely begin between 1-2 weeks after your surgery. Nipple-areola
reconstruction will be performed once all the swelling has resolved
and the new breast settles into position, usually about three months
after your reconstruction. If you should require chemotherapy, nipple-areolar
recontruction will often be delayed until your treatment is completed.
You
will be tired and sore for several days or weeks after your reconstruction.
You may have temporary loss of sensation in the breast area as well
as the abdomen if a flap procedure was performed. Additionally,
you may experience tightness in the abdomen as well as lower back
discomfort which may last several weeks. This is almost always temporary
and will subside spontaneously. Your incisions will typically require
no special care.
|