SKIN 78, 79 Flashcards

1
Q

CUTANEOUS CIRCULATION IN DOGS AND CATS

A
  • SUBCUTANEOUS (DEEP) PLEXUS
  • CUTANEOUS (MIDDLE) PLEXUS
  • SUBPAPILLARY (SUPERFICIAL) PLEXUS
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2
Q

HUMAN VS DOG CAT SKIN VASCULARIZATION

A
  • musculocutaneous arteries perpendicular to the skin.
  • direct cutaneous arteries

all vessels in the skin of dogs and cats approach and travel parallel to the skin and are direct cutaneous arteries.2 Dogs and other loose-skinned animals lack musculocutaneous vessels

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3
Q

1

A

CAUDAL AURICOLAR

  • Flap length:* spine of scapula
  • Dorsal and ventral incisions:* parallel from base centered over lateral cervical region
  • Flap base:* depression between wing of atlas and vertical ear canal
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4
Q

2

A

CARVICAL CUTANEOUS BRANCH OF THE OMOCERVICAL

  • Flap length:* variable, contralateral shoulder
  • Cranial incision:* parallel to the caudal incision and equidistant to cranial scapular edge
  • Caudal incision:* from acromion dorsally over scapular spine
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5
Q

7 DAYS AFTER WOUND CAT VS DOG

A

50% STRENGHTH IN CAT COMPARED WITH DOGS

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6
Q

SUCCESS RATE AXIAL PATTERN FLAPS

A

87-100%

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7
Q

3

A

THORACODORSAL

Cranial incision: from acromion dorsally over scapular spine

Caudal incision: parallel to the cranial incision and equidistant to caudal scapular edge

Flap length: variable, contralateral shoulder

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8
Q

8

A

SUPERFICIAL BRACHIAL

  • Flap length:* distal to greater tubercle
  • Lateral and medial incisions:* parallel from base dorsally, tapering together
  • Flap base:* centered over dorsal third of elbow’s flexor surface
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9
Q

6

A

DEEP CIRCUMFLEX

DORSAL

  • Flap length:* dorsal to contralateral flank fold
  • Cranial incision:* parallel to the caudal and equidistant to the iliac wing
  • Caudal incision:* begins midway between the ilium and greater trochanter extending dorsally
  • Flap base:* cranioventral edge of wing of ilium

VENTRAL

  • Flap length:* proximal to the patella
  • Cranial incision:* parallel to the caudal
  • Caudal incision:* begins midway between the ilium and greater trochanter extending ventrally cranial to the femoral shaft
  • Flap base:* cranioventral edge of wing of ilium
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10
Q

4

A

CAUDAL SUPERFICIAL EPIGASTRIC

  • Flap length:* may include last teats 2 to 5
  • Lateral incision:* parallel to medial incision equidistant to teats
  • Medial incision:* abdominal midline
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11
Q

7

A

lateral caudal

  • Flap length:* variable; third or fourth intervertebral space
  • Incision:* dorsal or ventral midline incision
  • Flap base:* base of tail
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12
Q

5

A

genicular

  • Flap length:* distal to greater trochanter
  • Dorsal and ventral incisions:* parallel from base along femoral shaft
  • Flap base:* 1 cm proximal to patella and 1.5 cm distal to tibial tuberosity on lateral aspect of leg
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13
Q

SKIN GRAFT can also be named

A

FREE GRAFT. it is used to distinguish from skin flaps, also referred as FLAP GRAFTS

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14
Q

CLASSIFICATION OF SKIN GRAFTS

A
  • AUTOGRAFTS
  • ALLOGRAFTS (HOMOGRAFTS): SAME SPECIES
  • XENOGRAFTS: DIFFERENT SPECIES
  • ISOGRAFTS: IDENTICAL TWINS OR F1 HIBRIDS
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15
Q

IDEAL DONOR SITE FOR GRAFTING

A
  • HAIR SAME COLOUR, TEXTURE, LENGTH
  • EASE OF CLOSURE
  • PATIEN POSITIONING (BEST WITHOUT THE NEED TO REPOSITION)
  • SKIN THICKNESS
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16
Q

SKIN THICKNESS PRO AND CONS

A
  • PRO: THICKER PROVIDE A GREATER DEGREE OF PROTECTION
  • CONS: GREATER DISTANCE FOR O2 DIFFUSIONAND NUTRIENTS TRAVEL
17
Q

COMMON CAUSES OF GRAFT FAILURE

A
  • SEPARATION FROM THE GRANULATION BED
  • INFECTION
  • MOVEMENT
18
Q

BANDAGES FOR SKIN GRAFT

A
  • CHANGE AT LEASTLAYER EVERY 24-48 H
  • WIDE MESH NONADHERENT CELLULOSE ACETATE PAD AD PRIMARY LAYER
  • IMMOBILIZATION OF THE AFFECTED AREA! MAYBE USE A SPLINT
19
Q

PHASES OF ENGRAFTMENT

A
  • PLASMATIC IMBIBITION
  • INOSCULATION
  • REVASCULARIZATION
20
Q

SPLIT-THICKNESS GRAFTS

A
  • FREE HAND CUTTING
  • DERMATOME
21
Q

FULL THICKNESS MESH GRAFT

A
  • ALLOW DRAINAGE
  • COVER LARGER SKIN DEFECTS
  • IRREGULAR SURFACES (CONVEX-CONCAVE)

USUALLY DONE BY HAND. TRACTION OF THE SKIN AND RMOVE ALL OF THE SUBCOUTANEOUS TISSUE! (COBBLESTONE APPEARANCE)

22
Q

MESH GRAFTS CAN BE PREPARED ALSO FROM SPLIT-THICKNESS GRAFTS T OR F

A

TRUE

23
Q

FULL TICKNESS GRAFTS CAN BE DONE WITHOUT MESHING AND WITHOUT DRAINAGE

A

FALSE. IF NO MESH A DRAINAGE SHOULD BE PLACED.

24
Q

OTHER TYPES OF SKIN GRAFTS

A
  • PINCH AND PUNCH ISLAND GRAFTS
  • STRIP GRAFTS
  • STAMP GRAFTS (SQUARES OF 5 MM -2 CM SIDES WITH 1 MM TO 1 CM SPACING BEETWEEN EACH OTHER
  • PAW PAD GRAFTS
  • MUCOSAL: OBTAINED FROM BUCCAL OR SUBLINGUAL MUCOSA