|Mandible body reduction |
Don’t be scared of complex medial terms and mandible anatomy in this picture.
I’m not urging you to memorize this complex anatomy and complicated surgical
skill to you.
Just remember that mandible body is located between mandible angle and chin.
Even though mandible angle resection is the most popular procedure for jaw
reduction, mandible body reduction is more effective in most of cases because
people who have wide mandible body is more popular than people who have prominent
mandible angle in Asian women.
So, I want to stress out the importance of mandible body reduction here.
Many people who complain heavy lower face and request facial fat removal have
wide mandible body in fact.
Mandible body reduction is the key in these patients instead of facial liposuction
or buccal fat removal.
Then, how can I know that I’m a candidate for mandible body reduction instead
of facial liposuction ?
If you pinch your skin in mandible area and is less than 1.5cm , liposuction
will not be helpful to you.
In fact, facial liposuction in jaw area is usually useless and not effective.
Many people who complain wide jaw and request mandible angle resection have
wide mandible body.
To them, mandible body reduction is more important than mandible angel resection.
As you can see in this photo, she has heavy jaw and dull cheek.
But she has little fat in jaw and little buccal fat also.
In addition, she has small mandible angle which is not seen in front picture.
The widest part in her jaw is her mandible body, not mandible angle.
If too much mandible angle is removed in this kind of patients, jaw line curve
will become weird and she or he may look too artificial.
Mandible body reduction and a small amount of mandible angle resection made
her jaw look narrower like ‘V’.
After surgery, her jaw looks much lighter and her facial shape became oval.
In addition, her jaw line still is natural and graceful curve, not straight
line, not weird curve.
Then, what is mandible body reduction ?
Is it different from mandible angle reduction ?
Let’s see the difference of mandible body reduction and mandible angle reduction
in this diagram.
As you can see in this picture, A has wide mandible body and B has wide &
prominent mandible angle.
Simple pencil test can discriminate these two easily.
The end of pencil can’t be seen from front in type A, but the end of pencil
can be seen from front in type B.
In type A patient, more body reduction should be done by sagittal splitting
osteotomy and minor angle removal is needed.
In type B patient, moderate body reduction and triangular angle resection should
Mandible body reduction removes outer layer of mandible body on both sides.
So, mandible body becomes narrower about 15 mm.
Mandible angle resection only removes triangular or crescent bone (whether it
is short or long).
Let’s see the sample pictures of type B patient also.
He had prominent and flared mandible angle which were seen in front picture.
So, a large piece of crescent bone was removed from his angle and moderate amount
of body reduction was done together.
Can you see the difference ?
In mandible reduction, not only reducing the mandible but also maintaining the
natural graceful curve of mandible is very important.
Proper diagnosis and appropriate method are critical in success of any plastic