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graft

(redirected from heterogenous graft)
   Also found in: Dictionary/thesaurus, Legal, Financial, Encyclopedia, Wikipedia 0.01 sec.
graft (graft)
1. any tissue or organ for implantation or transplantation.
2. to implant or transplant such tissues. See also implant.

accordion graft  a full-thickness graft in which slits have been made so that it may be stretched to cover a larger area.
arteriovenous graft  an arteriovenous fistula consisting of a venous autograft or xenograft or a synthetic tube grafted onto the artery and vein.
avascular graft  a graft of tissue in which not even transient vascularization is achieved.
Blair-Brown graft  a split-skin graft of intermediate thickness.
bone graft  a piece of bone used to take the place of a removed bone or bony defect.
cable graft  a nerve graft made up of several sections of nerve in the manner of a cable.
coronary artery bypass graft  (CABG) see under bypass.
delayed graft  a skin graft sutured back into its bed and subsequently shifted to a new recipient site.
dermal graft , dermic graft skin from which epidermis and subcutaneous fat have been removed; used instead of fascia in various plastic procedures.
fascia graft  one taken from the fascia lata or the lumbar fascia.
fascicular graft  a nerve graft in which bundles of nerve fibers are approximated and sutured separately.
full-thickness graft  a skin graft consisting of the full thickness of the skin, with little or none of the subcutaneous tissue.
heterodermic graft  a skin graft taken from a donor of another species.
heterologous graft , heteroplastic graft xenograft.
homologous graft , homoplastic graft allograft.
isogeneic graft , isologous graft, isoplastic graft syngraft.
Krause-Wolfe graft  full-thickness g.
lamellar graft  replacement of the superficial layers of an opaque cornea by a thin layer of clear cornea from a donor eye.
nerve graft  replacement of an area of defective nerve with a segment from a sound one.
omental grafts  free or attached segments of omentum used to cover suture lines following gastrointestinal or colonic surgery.
pedicle graft  see under flap.
penetrating graft  a full-thickness corneal transplant.
periosteal graft  a piece of periosteum to cover a denuded bone.
pinch graft  a piece of skin graft about 14 inch in diameter, obtained by elevating the skin with a needle and slicing it off with a knife.
sieve graft  a skin graft from which tiny circular islands of skin are removed so that a larger denuded area can be covered, the sievelike portion being placed over one area, and the individual islands over surrounding or other denuded areas.
split-skin graft  a skin graft consisting of only a portion of the skin thickness.
thick-split graft  a skin graft cut in pieces, often including about two thirds of the full thickness of the skin.
white graft  avascular g.

graft (grft)
v.
To transplant or implant tissue surgically into a body part to replace a damaged part or compensate for a defect.
n.
1. Material, especially living tissue or an organ, surgically attached to or inserted into a body part to replace a damaged part or compensate for a defect.
2. The procedure of implanting or transplanting such material.
3. The configuration or condition resulting from such a procedure.

Graft
To implant living tissue surgically. In coronary artery bypass graft surgery, healthy veins or arteries are grafted to coronary arteries.

graft
Etymology: Gk, graphion, stylus
a tissue or an organ taken from a site or a person and inserted into a new site or person, performed to repair a defect in structure. The graft may be temporary, such as an emergency skin transplant for extensive burns, or permanent with the grafted tissue growing to become a part of the body. Skin, bone, cartilage, blood vessel, nerve, muscle, cornea, and whole organs, such as the kidney or the heart, may be grafted. Preoperative care focuses on a high-protein diet and vitamins to ensure optimal physical condition and on freedom from infection. With the patient under general or local anesthesia, the tissue is transferred and sutured into place. Rejection of a non-autograft is the major complication: fever, pain in the graft area, and evidence of loss of function 4 to 15 days after the procedure are indicative of rejection. Immunosuppressive drugs are given in large doses to suppress antibody production and rejection. Even if an early reaction is prevented, late rejection may occur 1 year or more after the graft is done. Also called transplant. See also allograft, autograft, isograft, skin graft, xenograft.

graft [graft]
1. any tissue or organ for implantation or transplantation.
2. to implant or transplant such tissues. This term is preferred over transplant in the case of skin grafts. See also implant.
allogeneic graft allograft.
autodermic graft (autoepidermic graft) a skin graft taken from the patient's own body.
autologous graft (autoplastic graft) a graft taken from another area of the patient's own body; called also autograft.
avascular graft a graft of tissue in which not even transient vascularization is achieved.
bone graft bone transplanted from one site to another.
bypass graft an autograft consisting of a segment of vein or artery grafted into place in a bypass.
cable graft a nerve graft made up of several sections of nerve in the manner of a cable.
coronary artery bypass graft (CABG) see under bypass.
cutis graft dermal graft.
delayed graft a skin graft that is sutured back into its bed and subsequently used after several days.
dermal graft (dermic graft) a skin graft of dermis, used instead of fascia in various plastic procedures.
epidermic graft a skin graft in which a piece of epidermis is implanted on a raw surface.
fascia graft a graft of fibrous tissue, usually taken from the external investing fascia of the lower limb (fascia lata).
fascicular graft a nerve graft in which bundles of nerve fibers are approximated and sutured separately.
filler graft one used for the filling of defects, as the filling of depressions with fatty tissue or of a bony cyst cavity with bone chips or dried cartilage.
free graft a graft of tissue completely freed from its bed, in contrast to a flap.
full-thickness graft a skin graft consisting of the full thickness of the skin, with little or none of the subcutaneous tissue.
heterodermic graft a skin graft taken from a donor of another species.
heterologous graft (heteroplastic graft) xenograft.
homologous graft a graft of tissue obtained from the body of another animal of the same species but with a genotype differing from that of the recipient; called also allograft and homograft.
inlay graft a skin graft or mucosal graft applied by spreading the graft over a stent and suturing the graft and mold into a prepared pocket.
isogeneic graft (isologous graft) (isoplastic graft) syngraft.
lamellar graft replacement of the superficial layers of an opaque cornea by a thin layer of clear cornea from a donor eye.
mesh graft a type of split-thickness graft in which many tiny splits have been made in the skin to allow it to be stretched to cover a larger area.
Mesh skin graft applied to the leg. From McQuillan et al., 2002.
Ollier-Thiersch graft a very thin skin graft in which long, broad strips of skin, consisting of the epidermis, rete, and part of the corium, are used.
omental graft a segment of omentum and its supplying vasculature, transplanted as a free flap to another area and revascularized by anastomosis of arteries and veins.
pedicle graft pedicle flap.
penetrating graft a full-thickness corneal transplant.
periosteal graft a piece of periosteum to cover a denuded bone.
Phemister graft a bone graft of cortical bone with cancellous bone chips to enhance callus formation.
pinch graft a small piece of skin graft, partial or full thickness, obtained by elevating the skin with a needle and slicing it off with a knife.
porcine graft a split-thickness graft of skin from a pig, applied to a denuded area on a human as a temporary dressing for treatment of a severe burn.
sieve graft a skin graft from which tiny circular islands of skin are removed so that a larger denuded area can be covered, the sievelike portion being placed over one area, and the individual islands over surrounding or other denuded areas.
skin graft a piece of skin transplanted to replace a lost portion of skin; see also skin grafting.
split-skin graft (split-thickness graft) a skin graft consisting of the epidermis and a portion of dermis.
Diagram of a cross-section of the skin, demonstrating split thickness and full thickness skin grafts. From Roberts and Hedges, 1991.
syngeneic graft syngraft.
thick-split graft a skin graft consisting of the epidermis and about two thirds of the dermis.
Thiersch graft Ollier-Thiersch graft.

graft,
n a slip or portion of tissue used for implantation. See also donor site; recipient site.
graft, allo-,
n a graft between genetically dissimilar members of the same species.
graft, allogenic,
n a graft using tissue from the same species (i.e., person to person). See also allograft.
graft, alloplast
n a graft of an inert metal or plastic material.
graft, auto-,
n See graft, autogenous.
graft, autogenous
n a graft taken from one portion of an individual's body and implanted into another portion of the individual's body.
graft, autogenous bone,
n the bone that is removed from one area of a patient's body and transplanted into another area that requires additional bony material. Such bone grafts are advantageous because they contain live active cells that promote bone growth.
graft, bone,
n the transplantation of healthy bone tissue to a defective bone cavity so that the new bone tissue meets the surrounding, unaffected surface and promotes healing and new growth.
graft, bone, allograft,
n a bone graft using tissue obtained from an individual other than, but of the same species as, the host of the bone graft; sources include human cadavers, living relatives, and nonrelatives. Also called
allogeneic graft and
homograft.
graft, bone, autogenous,
n See graft, autogenous.
graft, composite,
n a transplant involving living tissue made of different materials, such as skin and cartilage.
graft donor site,
n the site from which graft material is taken.
graft, filler,
n the filling of defects, such as bone chips used to fill a cyst.
graft, free,
n a graft of tissue completely detached from its original site and blood supply.
graft, full-thickness,
n a skin graft consisting of the full thickness of the skin with none of the subcutaneous tissues.
graft, gingival,
n a graft in which a thin piece of tissue is taken from the palate of the oral cavity, or moved over from adjacent areas, to provide a stable band of soft tissue around a tooth or implant.
graft, hetero-,
n See graft, heterogenous.
graft, heterogenous
n a graft implanted from one species to another.
graft, homo-,
n See graft, homogenous.
graft, homogenous
n a graft taken from a member of a species and implanted into the body of a member of the same species.
graft, iliac,
n a bone graft whose donor site is the crest of the ilium. Various locations of the iliac crest duplicate areas of the mandible and curvatures of the midfacial skeleton.
graft, iso-,
n a graft between individuals with identical or histocompatible antigens.
graft, kiel,
n a denatured calf bone used to fill defects or restore facial contour.
graft, mucosal,
n a split-thickness graft involving the mucosa.
graft, onlay bone,
n a graft in which the grafted bone is applied laterally to the cortical bone of the recipient site, frequently to improve the contours of the chin or the malar eminence of the zygomatic bone.
graft, particulate,
n a surgical tissue implant or graft consisting of various particles, e.g., used in the stimulation of bone growth.
graft, pedicle
n a stem or tube of tissue that remains attached near the donor site to nourish the graft during advancement of a skin graft.
graft, ramus,
n the surgically removed bone taken from the ascending ramus of the mandible for the purpose of transplantation.
graft, split-thickness,
n a graft with varying thickness containing only mucosal elements and no subcutaneous tissue.
graft, swaging,
n a procedure analogous to bone grafting. Also referred to as a
contiguous transplant, which involves a greenstick fracture of bone bordering on an infrabony defect and the displacement of bone to eliminate the osseous defect.
graft, Thiersch's skin
n.pr a split-thickness skin graft containing cutaneous and some subcutaneous tissues, the line of cleavage through the rete peg layer.

graft
1. any tissue or organ for implantation or transplantation.
2. to implant or transplant such tissue. See also flap (1), grafting, allograft, xenograft.

autodermic graft, autoepidermic graft
a skin graft taken from the patient's own body.
autologous graft, autoplastic graft
a graft taken from another area of the patient's own body; an autograft.
avascular graft
a graft of tissue in which not even transient vascularization is achieved.
graft bed
site to which a graft is to be joined.
bone graft
the transfer of living bone, usually for fracture repair or reconstructive surgery. Various types of bone grafts are identified, depending on their source and treatment, if any, e.g. cortical, autograft, allograft, cancellous, xenograft, isograft.
cable graft
a nerve graft made up of several sections of nerve in the manner of a cable.
chess-board graft
see stamp graft (below).
cutis graft
dermal graft.
dermal graft, dermic graft
skin from which epidermis and subcutaneous fat have been removed, used instead of fascia in various plastic procedures.
graft enhancement
prior exposure of the recipient to the donor's tissues may prolong survival of a graft.
epidermal graft
a piece of epidermis implanted on a raw surface.
fascia graft
a graft of tissue taken from the external investing fascia of the leg (fascia lata).
fascicular graft
a nerve graft in which bundles of nerve fibers are approximated and sutured separately.
free graft
a graft of tissue completely freed from its bed, in contrast to a flap.
full-thickness graft
a skin graft consisting of the full thickness of the skin, with little or none of the subcutaneous tissue.
heterodermic graft
heterologous graft, heteroplastic graft
a graft of tissue transplanted between animals of different species; a heterograft or xenograft.
homologous graft
a graft of tissue obtained from the body of another animal of the same species but with a genotype differing from that of the recipient; a homograft or allograft.
isologous graft, isoplastic graft
a graft of tissue transplanted between genetically identical individuals; an isograft.
lamellar graft
replacement of the superficial layers of an opaque cornea by a thin layer of clear cornea from a donor eye.
mesh graft
skin grafts in which multiple small incisions have been made to permit lateral stretching of the graft and to increase flexibility to facilitate placement in tricky sites.
Enlarge picture
Mesh graft. By permission from Slatter D, Textbookof Small Animal Surgery, Saunders, 2002
omental g's
free or attached segments of omentum used to cover suture lines following gastrointestinal or colonic surgery.
patch graft
used in the surgical repair of tissue defects of the esophagus and to enlarge the pulmonary outflow tract. In-lay patches replace missing tissue. On-lay patches reinforce existing tissue.
pedicle graft
a portion of skin and subcutaneous tissue with a vascular attachment moved from one part of the body to another. Grafted to the new site, they not only can survive because of their own vascular supply, they can improve circulation in the site. Called also pedicle flap.
penetrating graft
a full-thickness corneal transplant.
periosteal graft
a piece of periosteum to cover a denuded bone.
pinch graft
a piece of skin graft about 6 mm in diameter, obtained by elevating the skin with a needle and slicing it off with a knife.
punch graft
grafts are obtained by using a skin biopsy punch on the animal or on a piece of separated skin.
graft rejection
seed graft
small pieces of skin are imbedded in granulation tissue on the same patient.
sieve graft
a skin graft from which tiny circular islands of skin are removed so that a larger denuded area can be covered, the sievelike portion being placed over one area, and the individual islands over surrounding or other denuded areas.
skin graft
a piece of skin implanted to replace a lost part of the integument. Many types of graft are used and are included in this list.
split-skin graft
a skin graft consisting of only a portion of the skin thickness.
sponge graft
a bit of sponge inserted into a wound to promote the formation of granulations.
stamp graft
squares of split-thickness or full-thickness skin are placed on a bed of granulation tissue.
thick-split graft
a skin graft cut in pieces, often including about two-thirds of the full thickness of the skin.
tubed graft
see rope flap.
tunnel graft
see rope flap.
vascular graft
see vascular conduit.

graft
Immunology Any tissue taken from one part of the body of the same or different person and used to replace diseased or injured tissue in another part of the body. See Allograft, Bone graft, Bypass graft, Corneal graft, Coronary artery bypass graft, Dermagraft, Endovascular stent graft, Endoscopic coronary artery bypass graft, Fetal brain graft, Hair graft, Hemi-homograft, Hemobahn endovascular graft, Irradiated chondral graft, Isograft, Micrograft, Minigraft, Skin graft, Split thickness graft, Standard hair graft, Strip graft, Test graft, Tissue graft, White graft.

graft (graft), Do not confuse this word with graph.
1. Any tissue or organ for transplantation.
See also: flap, implant, transplant.
2. To transplant such structures.
See also: flap, implant, transplant.
[A.S. graef]

graft (graft)
1. Any free (unattached) tissue or organ for transplantation.
2. To transplant such structures.
See also: flapimplanttransplant
[A.S. graef]

graft (graft)
1. Any free (unattached) tissue or organ for transplantation.
2. To transplant such structures.
See also: flapimplanttransplant
[A.S. graef ]

graft transplanted tissue
  • allograft; heterograft grafting of tissue or organ from one individual to another, from a donor to a recipient

  • autologous graft autograft; homologous graft: grafting of tissue to an alternative location within same individual

  • full-thickness graft autologous donation of full-thickness skin (i.e. epidermis and dermis)

  • split-skin graft autologous donation of skived skin, i.e. epidermis containing sweat gland, hair follicle orifices and tips of dermal papillae



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