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Costal
(rib) cartilage is the strong abundant cartilage from the rib cage.
The ribs are usually made-up of both cartilage and bone. This
cartilage is excellent for grafting in the nose. I typically use the
costal cartilage from the 6th or 7th ribs. I
take the cartilage from the right side of the chest through a small
incision (approximately 1.5 inches long). Costal cartilage can bend or
warp if not used properly, so I use special techniques to prepare the
costal cartilage that significantly decrease the chances of warping or
bending. In fact, we have had no warping in our last 120 rhinoplasties
using costal cartilage grafts.
My
preferred cartilage grafting material is septal cartilage. In many
patients, there is not enough septal cartilage to create adequate
structural support or proper contour. When septal cartilage is not
sufficient, alternative grafting materials are needed. I prefer to
use cartilage over any other material, including implants. In fact, I
do not use any type of artificial implant material, such as Gore-Tex
or Silicone. These materials can become infected, extrude, or damage
the overlying skin. If the septal cartilage is not adequate, ear
cartilage can be used. Unfortunately, ear cartilage is relatively
weak, is irregular in shape, and only provides smaller pieces of
cartilage. This is why, when septal cartilage is not available, I
will often use costal cartilage. Not only does it allow me to perform
a rhinoplasty to my satisfaction, but I have found costal cartilage to
be the strongest and most abundant cartilage source available. We also
have a very low complication rate harvesting and using costal
cartilage. I prefer to use costal cartilage for augmentation
rhinoplasty in Asian patients, saddle nose repair, short nose repair,
and secondary rhinoplasty.
Costal
cartilage provides an abundant source of cartilage for grafting, which
is very important in the secondary rhinoplasty patient. From the same
small incision in the chest, I can get both costal cartilage and soft
tissue for camouflage. This soft tissue, called perichondrium, is the
fibrous covering over the cartilage and is an excellent material for
camouflaging cartilage grafts so they do not show up over time. The
perichondrium can also be used to thicken very thin skin and to help
hide small irregularities on the dorsum and tip.
I have
also found that it takes less time and is less painful for patients to
take a rib graft than to take cartilage from both ears. We use a
technique of rib cartilage harvest that minimizes the postoperative
pain, and the small incision on the bottom of the right breast hides
well under a bra or two piece bathing suit.
Costal
cartilage is very strong, and it resists the forces of scar
contracture that can destroy a good rhinoplasty outcome. In the
absence of infection, we have not seen any resorption of the costal
cartilage over time. We have seen resorption of costal cartilage
in cases of severe infection. This is one reason why we have patients
take antibiotics after surgery We have been using costal
cartilage for over 17 years and have developed sound techniques for
working with this excellent grafting material.
It is my
opinion that a large number of rhinoplasties fail because of a
lifelong scar contracture affect that tends to narrow and collapse the
nose. Many patients who have undergone rhinoplasty had a good or
reasonable outcome initially that worsened over time. Most patients
whom I see for secondary rhinoplasty state that their nose was
improved at first but then got worse and worse over many years. The
reason is that the previous operation weakened the nose, setting it up
for collapse and excessive narrowing over time as the skin over the
cartilages contracts. Additionally, every time the patient breathes
in, there is a suction effect on the cartilages and soft tissues of
the nose, which contributes to collapse of the lateral wall and middle
segment (middle nasal vault) of the nose. I also believe that, after
surgery, the nose will continue to heal and change over the patients
entire lifetime. Most of these changes tend to present as narrowing or
pinching. For this reason, placing strong cartilage grafts to resist
these forces will provide the best chance for a good long-term
outcome.
To help
prevent graft visibility and deformity, I use the perichondrium that
covers the rib cartilage to make the skin thicker and intentionally
create extra swelling. Although this tends to make the nose swollen
longer right after surgery, perichondrium helps to provide a better
long term outcome. I am much less concerned about the short term
result and focus heavily on attaining a good long term outcome. In
many thin skinned patients I intentionally create swelling by using
perichondrium and crushed cartilage to help avoid deformity over the
long term. I do this because many secondary patients that I see have
had multiple previous secondary operations, with each one looking
better for awhile then going bad over time. I am trying to end this
cycle and give the patient an outcome that will last his or her
lifetime. This requires a completely different approach that
compromises the patients short-term result due to swelling and a
slight degree of over-correction. I tend to over-correct by about 10%
in terms of the width of the nose. This over-correction factor
accounts for the changes that will occur over the patients lifetime,
including scar contracture that will tend to shrink the nose and
create collapse.
The
ideal scenario is that the patient will experience gradual improvement
in their nasal appearance over the first 3 months, with the nose
looking good but still large at 9 months to a year. These patients
noses will continue to shrink and improve over their lifetime instead
of looking good early on and then getting worse and worse over time,
eventually requiring another operation. I have many patients that have
large noses for a couple of years then shrink and look very good after
two or three years with additional improvement over 10 to 15 years. My
philosophy is that if I am to operate on a patient my primary goal is
to give them a life long aesthetic and functional outcome. This
approach is time consuming and difficult which explain why my
operations average 4 to 5 hours for a primary and 5 to 7 hours for a
secondary rhinoplasty. Other surgeons can do a couple of rhinoplasties
in the time it takes me to one rhinoplasty. However, my goal is not to
do a lot of rhinoplasties but rather do the best I can to provide the
patient with a good result that last for their lifetime. This approach
to rhinoplasty surgery has worked well for my patients.
Below is a description of a surgery using costal cartilage.
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