PLASTIC
OR RECONSTRUCTIVE SURGERY : surgery concerned with the
restoration, reconstruction, correction, or improvement in the shape and
appearance of body structures that are defective, damaged, or misshapen
by injury, disease, or growth and development. The ability to create new,
living jawbone; to rebuild breasts without destroying abdominal muscles;
and to restore function to limbs or fingers damaged by accident hinges
on the relatively newfound ability of doctors to stitch together veins
and arteries whose diameters are about the size of the tip of a ballpoint
pen with microsurgery. Most people have heard the term microsurgery when
a person loses a finger in an accident and the severed digit is placed
in an ice-filled bag and rushed to the hospital along with the patient.
A surgeon in Boston started experimenting with replacing and restoring
function to severed fingers in the 1950s. But it wasn't until the 1980s
that researchers began to perfect the optics and the tools that allow doctors
to see and stitch together thread-thin vessels. Doctors also increased
their understanding of how tissue lives and receives blood. Material developed
to suture the vessels is now one-half the diameter of a strand of human
hair
cosmesis : the preservation, restoration, or bestowing of bodily
beauty. 2. the surgical correction of a disfiguring physical defect.
cosmetic surgery
: that department of plastic surgery which deals with procedures designed
to improve the patient's appearance by plastic restoration, correction,
removal of blemishes, etc.
forehead lift (brow lift) is designed to correct or improve skin
wrinkling, as well as loss of tone and sagging of the eyebrows that often
occurs as part of the aging process. The procedure may also help to smooth
horizontal expression lines in the forehead and vertical frown lines between
the eyebrows. Incisions are placed behind the hairline above the ear and
pass over the top of the head. In some cases, incisions may be placed in
front of the hairline. Some patients may have the procedure performed with
the use of an endoscope, requiring much shorter incisions. Improvements
are made beneath the skin and on the deep muscles; skin and muscle are
then tightened to give a fresher, more youthful appearance.
blepharoplasty : a plastic surgery
procedure of the eyelids which removes bags under the eyes and the extra
skin of the eyelids. The procedure can be done with a scalpel or with a
CO2 laser. Aesthetic eyelid surgery can brighten the face and
restore a more youthful appearance by reducing the fat that causes bags
beneath the eyes and removing wrinkled, drooping layers of skin on the
eyelids. Blepharoplasty is often performed along with a facelift or with
other facial rejuvenation procedures. Incisions follow the natural contour
lines in both upper and lower lids, or can be done through the lining of
the lower eyelid, providing access to skin and fatty tissue. The thin surgical
scars are usually barely visible and blend into the eyes' natural lines
and folds
Ammon's operation : blepharoplasty by a flap from the cheek
Dupuy-Dutemps operation : blepharoplasty of the lower lid with tissue
from the opposing lid
transconjunctival blepharoplasty is performed by making an incision
from inside the lower eyelid. It avoids any scarring on the lower lid.
It is a useful technique when only fat, and not skin or muscle, needs to
be removed from the eyelid area.
rhytidectomy / rhytidoplasty / face-lift
: plastic surgery to eliminate wrinkles
from the facial skin by excising loose or redundant tissue. The superficial
musculoaponeurotic system (SMAS) is a layer of tissue that covers the
deeper structures in the cheek area and is in continuity with the platysma.
Some facelift techniques lift and reposition the SMAS as well as the skin.
buccal fat pads are located above the jawline near the corner of
the mouth. They can be removed in individuals with excessively round faces
to give a more contoured look, sometimes referred to as the "waif look."
However, plastic surgeons warn that, in some individuals, removal of the
buccal fat pads can lead to a drawn, hollow-cheeked look as aging progresses.
mentoplasty / chin augmentation : plastic
surgery of the chin; surgical correction of deformities and defects of
the chin. It can strengthen the appearance of a receding chin by increasing
its projection. The procedure does not affect the patient's bite or jaw.
There are two techniques: one is performed through an incision inside the
mouth and involves moving the chinbone, then wiring it into position; the
other approach requires insertion of an implant through an incision inside
the mouth, between the lower lip and the gum, or through an external incision
underneath the chin.
malar (cheekbone) augmentation : the cheekbones may be built
up by placing an implant over them. This is usually performed through an
incision within the mouth, but it may be done through a lower eyelid or
brow lift incision.
rhinoplasty : a plastic surgical operation
on the nose, either reconstructive, restorative, or cosmetic.
English rhinoplasty : that in
which a nose is formed out of flaps from the cheeks.
Carpue's or
Indian operation or rhinoplasty : the reconstruction of a nose by a
flap of skin taken from the forehead, with its pedicle at the root of the
nose
Joseph rhinoplasty : an operation
for modification of the shape of the nose by resection of the dorsal osteocartilaginous
hump with a saw.
Italian
or tagliacotian operation or rhinoplasty : the reconstruction of a
nose by a flap of skin taken from the arm, the flap remaining attached
to the arm until union has taken place
septoplasty : surgical reconstruction
of the nasal septum.
septorhinoplasty : a plastic operation
combining reconstruction of the nasal septum and correction of deformities
of the external nose.
rhinorrhaphy : an operation for epicanthus
performed by excising a fold of skin from the nose and closing the opening
with sutures.
submucous resection : a formerly
common technique for correction of a deviated nasal septum: the mucous
membrane is opened and a portion of the underlying tissue is excised and
repositioned or replaced.
Killian-Freer operation :
submucous resection of the nasal septum, including the septal cartilage,
vomer, and perpendicular plate of the ethmoid.
rhinommectomy / rhinocanthectomy
: excision of the inner canthus of the eye.
rhinotomy : incision into the nose
rhinocheiloplasty : plastic surgery
of the nose and lip.
lip surgery
vermilionectomy : excision of the
vermilion border of the lip, the surgically created defect being resurfaced
by advancement of the undermined labial mucosa.
lip augmentation : a permanent method
of augmenting the lips is accomplished by surgically advancing the lip
forward, with incisions placed inside the mouth. A dermal-fat graft, taken
from the deeper layers of the skin, may then be positioned under the mucosa
(the lining of the lip) to add additional "plumpness." Injecting fat collagen
or other substances for lip augmentation is another alternative. The correction
is not permanent, and injections must be repeated periodically to maintain
results.
lip lift : a technique that surgically lifts
the corners of the aging mouth can eliminate the pronounced droop and unhappy
facial expression that often develops with advanced age. By cutting away
small diamonds of skin just above the corners of the mouth, the vermilion
(border of the lips) is raised into a slight smile.
lip reduction : to reduce the lips,
a small strip of the mucosa (the lining of the lip) is surgically removed
to narrow the lips to the desired proportion. The small scars on the outside
of the lips are barely noticeable.
otoplasty : plastic surgery of the ear,
done to correct deformities and defects. The ears are positioned closer
to the head by reshaping the cartilage (supporting tissue). This is usually
accomplished through incisions placed behind the ears so that subsequent
scars will be concealed in a natural skin crease. Otoplasty can be performed
on children as early as age 5-6.
earlobe reduction : a simple, 30-minute procedure, earlobe reduction
can be performed in a plastic surgeon's office or at the same time as a
facelift operation. The earlobe should not comprise more than 25% of the
total length of the ear. In cases where it exceeds this dimension, an L-shaped
wedge is cut away, the earlobe edges are brought together and sutured.
brachioplasty: arm lift surgery
mammaplasty / mammoplasty / mastoplasty :
plastic reconstruction of the breast, as may be performed to augment or
reduce its size
augmentation mammaplasty :
plastic reconstruction of the breast, with increase of its volume by insertion
of an autogenous or prosthetic material, used to treat micromastia.
Around 240,000 women underwent breast augmentation in the United States
in 2002. Around 33% of implants are removed within 10 years because of
complications
most breast enhancements are done by implanting packets of saline water
silicone implants are now banned in the United States because of concerns
that they can leak, causing serious side effects
surgeons frequently shuffle handfuls of fat from the hips up to the face
for cosmetic reasons - to smooth out wrinkles or cover up scars, for example.
But they have been wary of moving fat into the breasts as in the 1980s,
doctors found that a proportion of grafted tissue tends to die and form
hardened areas. If fat has been transferred to the breast, these hardened
areas can show up on mammograms and might be mistaken for tumours. This
problem might be avoided by using a mix of fat cells and stem cells that
create fresh fat cells and coax blood vessels to grow into and nurture
the new tissue. During the operation led by Kotaro Yoshimura of the University
of Tokyo and his colleagues, the team suck fat cells from the woman's stomach
or thigh. By separating cells based on their density, the team enrich the
slurry for special stem cells that are able to generate new fat cells.
They then inject 300-400 millilitres of these stem cells mixed with normal
fat tissue into the woman's breasts. Using a person's own fat is an attractive
alternative to these artificial implants because it does not provoke the
immune system and looks completely natural. Also, women are rarely sorry
to donate a few pounds of their own fat to the cause. MacroPore
Biosurgery are already offering people who have had liposuction the
opportunity to bank their fat stem cells
Side effects : capsular contracture
is the most common problem associated with breast implants. It occurs when
naturally forming scar tissue around the implant shrinks and tightens,
making the breast feel firmer than normal and sometimes causing pain and
an unnatural appearance of the breast. During the past 30 years, much debate
has centered around side effects of silicone breast implants. Meta-analyses
rejected the presumed relationship between silicone breast implants and
connective tissues diseases (CTDs) but, in seeming contradiction, case
reports about connective tissue diseases and rheumatoid symptoms continue
to be published. Massive deposition of fibronectin and tenascin is observed
adjacent to the implant surface. The capsule/silicone implant contact zone
is consistently characterized by a palisade-like single or multilayered
cell accumulation consisting of HSP60+ macrophages and HSP60+
fibroblasts. Mononuclear cell infiltrates consisting of activated CD4+25+45RO+
T-cells, as well as macrophages are detected beneath the contact zone as
well as perivascularly. Importantly, many Langerhans-cell like dendritic
cells (DCs) are found with a predilection at the frontier layer zone abutting
the silicone implant. Also, at this site, massive expression of ICAM-1,
but not VCAM-1 or ELAM-1 emerges. Endothelial cells of the intracapsular
neovasculature are P-selectin+. Silicone induces a strong local
T-cell immune response and future studies will determine the specificity
and function of these T-lymphocytesref
reduction mammaplasty : plastic
reconstruction of the breast with decrease in its volume by excision of
tissue, used to treat macromastia
Biesenberger's operation or mammaplasty : a reduction mammaplasty
using transposition of the nipple, consisting in excision of the lateral
portion of the mammary gland, with rotation of the remaining glandular
pedicle attached to the nipple and formation of a skin brassiere.
Conway mammaplasty or operation : a method of correcting severe
macromastia, consisting in partial breast amputation and free transplantation
of the nipples and areolae.
Strömbeck mammaplasty oroperation : a one-stage breast
reduction operation that includes transposition of the nipple in a medial
and lateral pedicle
Aries-Pitanguy mammaplasty or operation : an operation to reduce
mild to moderate macromastia.
mastopexy / breast lifting : mammaplasty
performed to correct mastoptosis
breast reconstruction
abdominoplasty : tummy tuck surgery.
Sometimes after multiple pregnancies or large weight loss, abdominal muscles
weaken, and skin in the area becomes flacid. Abdominoplasty can tighten
the abdominal muscles and, in some instances, improve stretch marks. In
both men and women, the procedure will remove excess skin and fat. Generally,
an incision is made across the pubic area and around the umbilicus (navel).
When skin laxity and muscle weakness is confined to the lower part of the
abdomen, a modified abdominoplasty that limits tissue removal and muscle
repair to the area below the umbilicus may be performed. This usually leaves
a shorter scar and no scarring around the navel.
buttock lift : excess fat and loose skin in the buttock area can
be reduced by performing a buttock lift in combination with lipoplasty
(liposuction). Incisions required for skin removal can often be hidden
in the fold beneath the buttocks.
calf augmentation : increased fullness of the calf can be achieved
using implants made of hard silicone which are inserted from behind the
knee and moved into position underneath the calf muscle.
liposculpture
lipoplasty / liposuction
:
surgical removal of localized fat deposits via high pressure vacuum, which
is applied by means of a cannula inserted subdermally through a small incision.
Noncosmetic
applications of liposuction have continued to appear since its introduction
into the USA in 1982. Although the most common use is in removing lipomas,
liposuction has also been used for benign
symmetric lipomatosis,
flap undermining, flap defatting, gynecomastia,
pseudogynecomastia,
breast reduction, buffalo hump, hypertrophic
insulin lipodystrophy,
lymphedema,
evacuating hematomas,
emergency neck defatting for airway restoration, and axillary
hyperhidrosisref
superficial syringe
liposculpture : use of a syringe to withdraw fat, instead of vacuum
suctioning pumps, allows for less blood loss and speedier postoperative
recovery. Superficial syringe liposculpture is performed on the layer of
fat just beneath the skin.
lipofilling / fat filler
graft : a graft of fat completely freed from its bed; used in filling
depressions. Cerebral fat embolism induced by facial fat injectionref.
lipografting :
autologous fat grafting for total facial rejuvenation. Surgeons who perform
facial
rejuvenation procedures have long recognized the importance of volume
enhancement. The primary manifestation of aging is loss of subcutaneous
tissue, especially the atrophy of fat, which directly contributes to laxity
of skin. Autologous fat transplantation has been attempted for over a century
with varying degrees of success but more recent techniques have provided
more predictable, reproducible, and even permanent results. Fat is an ideal
tissue filler substance because it is living tissue and because it is from
the patient's own body it is nonallergenic. The procedure can be performed
alone as a total facial rejuvenation or in combination with facelift or
other facial surgery. The technique requires minimally traumatic fat harvesting,
fat preparation, and multilevel facial infiltration. Excess fat not used
in the initial procedure is frozen and stored at -16°C and can be used
successfully for minor touch-up procedures. Preoperative evaluation of
the patient and their understanding of the benefits and limitations of
volume restoration surgery is imperative. Structural improvement to the
main support areas of the face in the appropriate aesthetic proportions
is of prime importanceref.
W-plasty : a technique in plastic surgery
used mainly in the repair of straight scars that require the redistribution
of tension. It consists of excising a series of consecutive small triangular
areas of tissue on each side of the wound or scar and imbricating the resultant
triangular flaps.
Experimental animal models :
epigastric flap model
transverse rectus abdominis musculocutaneous flap model