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Surgery > Unit 2- Suture Material and Needles > Flashcards

Unit 2- Suture Material and Needles Flashcards

1
Q

Tensile Strength

A

Ability to resist breakage or deformation, exponentially proportional to size

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2
Q

Pliability

A

Depends on material and size, ease when handling, more flexibility better for vessel ligation

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3
Q

Memory

A

Tendency of suture to return to original shape

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4
Q

Surface Friction

A

Roughness of outer surface

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5
Q

Tissue Drag

A

Ease with suture being pulled through tissue

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6
Q

Knot Security

A

Ability to hold knot, inversely proportional to suture size

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7
Q

Capillarity

A

Fluid and bacteria carried into interstices of multifilament fibers, infection can be in suture, monofilament noncapillary

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8
Q

Tissue Reactivity

A

Degree to which body reacts to presence of suture material

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9
Q

Multifilament Nonabsorbable

A

Silk, polyester

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10
Q

Multifilament Absorbable

A

Polyglactin 910, cat gut

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11
Q

Monofilament Nonabsorbable

A

Polypropylene, nylon

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12
Q

Monofilament Absorbable

A

Poliglecaprone 25

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13
Q

Natural Fiber Absorption

A

Enzymatic digestion, rate of absorption increases in the presence of infection and inflammation

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14
Q

Synthetic Fiber Absorption

A

Hydrolysis, less tissue reaction

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15
Q

Slow Healing Tissue

A

Use absorbable suture

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16
Q

Rapidly Healing Tissue

A

Use absorbable suture

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17
Q

Multifilament and Infection

A

Avoid, will convert contaminated wounds into infection

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18
Q

Surgical Gut

A

Natural, multifilament, made from sheep or bovine, inflammatory reaction

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19
Q

Surgical Gut Use

A

Vascular pedicle ligation

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20
Q

Polyglactin 910

A

Synthetic, vicryl, braided, multifilament, monofilament in 9-0 and 10-0, minimal tissue reactivity, absorbabler

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21
Q

Polyglactin 910 Uses

A

Soft tissue approximation, hollow organs, ophthalmic, subcutaneous

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22
Q

Vicryl Rapide

A

Polyglactin 910, exposed to radiation to increase absorption rate

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23
Q

Vicryl Rapide Uses

A

Skin and mucosa, perineal repair, lacerations, oral mucosa, periocular skin, rapid absorption in skin repairs

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24
Q

Vicryl Plus

A

Polyglactin 910, coated with Triclosan antibacterial

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25
Vicryl Plus Uses
Contaminated and infected sites, reproductive tract, ligation, general closure, bowel, orthopedics
26
Polydioxanone
PDS II and plus, synthetic, monofilament, minimal reactivity, complete absorption in 180 days
27
Polydioxanone Uses
Soft tissue approximation, fascia closure, blood vessel anastomosis, orthopedics, tissues requiring long term strength
28
Polyglecaprone 25
Monocryl or Monocryl plus, synthetic, monofilament, minimal reactivity, high strength
29
Polyglecaprone 25 Uses
Soft tissue approximation, ligation, skin repair, bowel, peritoneum, uterus, vaginal cuff, subcutaneous
30
Silk
Natural, braided, moderate reaction, non absorbable, potential calculus formation
31
Nidus
Location that catches bacteria or calcium to form stones
32
Silk Uses
Vessel ligation, cardiovascular, ophthalmic, neurological, amputation
33
Nylon
Polyamide, ethilon, synthetic, monofilament, non absorbable, minimal reaction, minimal breakdown
34
Nylon Uses
Soft tissue approximation, ophthalmic, ligation
35
Polyester
Mersilene, synthetic, multifilament, monofilament at 10-0 and 11-0, strongest non metallic, intermediate reaction
36
Polyester Uses
Stabilizing joints
37
Polypropylene
Prolene, synthetic, monofilament, high memory, least reactive non absorbable
38
Polypropylene Uses
Vascular surgery, neurologic, tendon repair
39
Stainless Steel
Metallic, mono or multifilament, high tensile strength, hard to handle
40
Stainless Steel Uses
Orthopedics, sternotomy repair, hernia repair
41
Longest Tissue Healing
Trachea, ligament, tendon, fascia, intestine, subcutis, skin, ligation
42
Longest Loss of Strength
Silk, PDS II, chromic gut, monocryl, vicryl, dexon, vicryl rapide, plaingut
43
Suture Size
12-0 smallest and 7 largest by pharmacopeia, catgut larger
44
Chance of Suture Reaction
multifilament > coated multifilament > monofilametn
45
Wicking
fluid and bacteria carried into interstices of multifilament fibers
46
Dehiscence
Failure of sutures to hold incision closed
47
Dehiscence Causes
Apposition of unlike tissue, suture too tight, too much tension, poor technique
48
Seroma
Increased dead space
49
Needle Anatomy
Point, body/shaft, swaged end
50
Taper Needle
Minimal trauma, must curve wrist to follow needle
51
Cutting Needle
Facilitates tough tissue penetration, cutting edge on concave surface, reverse cutting edge on convex surface
52
1/4 Circle Needle
Ophthalmic surgery
53
1/2 Circle Needle
Commonly used
54
3/8 Circle Needle
Superficial tissue or skin
55
5/8 Circle Needle
Confined location or deep tissue
56
Taperpoint Needle
Sharp tip piercing and spreading without cutting, intestine, SQ, and fascia
57
Tapercut Needle
Combination of reverse cutting and taperpoint, heavy thick fascia and tendons
58
Cutting Needle
Cutting edge on concave portion, cuts out of tissue
59
Reverse Cutting Needle
Cutting edge on convex surface, reduces risk of tissue being cut out, skin
60
Spatula Point Needle
Flat on top and bottom, ophthalmic procedures
61
Blunt Point Needle
Dissects friable tissue without cutting, soft parenchyma organs
62
Cyanoacrylates
Liquids become solid when contacting water in tissues, closes short skin lacerations, can delay healing, cause reaction, granuloma, and infection
63
Skin Staplers
Rectangular appositional staples, place 5-6mm apart, can lead to rotation and eversion
64
Thoracoabdominal Stapler
Parallel B shaped staples, used on lung or liver lobe resection, partial splenectomy, partial gastrectomy
65
Gastrointestinal Anastomosis Stapler
B shaped staples and cuts in the middle, creates side to side anastomosis
66
End to End Anastomosis Stapler
Creates circular end to end anastomosis
67
Skin Closure
Non absorbable, minimal reactivity
68
Skin Suture
Nylon, polypropylene, monocryl, 4-0 to 2-0
69
Subcutaneous Closure
Rapid absorption
70
Subcutaneous Suture
Monocryl, vicryl, PDY, 4-0 to 2-0
71
Body Wall CLosure
Slow absorption, high tensile strength, good knot security
72
Body Wall Suture
PDS, 3-0 to 0
73
Stomach Closure
Slow absorption, low reactivity, good tensile strength
74
Stomach Suture
PDS, monocryl, 4-0 to 2-0
75
Small Intestine Closure
Slow absorption, low reactivity
76
Small Intestine Suture
PDS, monocryl, 4-0 to 3-0
77
Urinary Bladder Suture
PDS, 4-0 to 3-0
78
Colon Suture
PDS, 4-0 to 3-0
79
Pedicle Ligation Suture
PDS, 3-0 to 0
80
Vessel Ligation Suture
PDS, 4-0 to 3-0
81
Ligament and Tendon Suture
Nylon, 3-0 to 1
82
Bird and Reptile Skin
Tends to invert, use everting patterns
83
Oral Mucosa
Tends to invert, use everting patterns

Surgery (11 decks)

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