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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
Q

Vicryl Plus Uses

A

Contaminated and infected sites, reproductive tract, ligation, general closure, bowel, orthopedics

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26
Q

Polydioxanone

A

PDS II and plus, synthetic, monofilament, minimal reactivity, complete absorption in 180 days

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27
Q

Polydioxanone Uses

A

Soft tissue approximation, fascia closure, blood vessel anastomosis, orthopedics, tissues requiring long term strength

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28
Q

Polyglecaprone 25

A

Monocryl or Monocryl plus, synthetic, monofilament, minimal reactivity, high strength

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29
Q

Polyglecaprone 25 Uses

A

Soft tissue approximation, ligation, skin repair, bowel, peritoneum, uterus, vaginal cuff, subcutaneous

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30
Q

Silk

A

Natural, braided, moderate reaction, non absorbable, potential calculus formation

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31
Q

Nidus

A

Location that catches bacteria or calcium to form stones

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32
Q

Silk Uses

A

Vessel ligation, cardiovascular, ophthalmic, neurological, amputation

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33
Q

Nylon

A

Polyamide, ethilon, synthetic, monofilament, non absorbable, minimal reaction, minimal breakdown

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34
Q

Nylon Uses

A

Soft tissue approximation, ophthalmic, ligation

35
Q

Polyester

A

Mersilene, synthetic, multifilament, monofilament at 10-0 and 11-0, strongest non metallic, intermediate reaction

36
Q

Polyester Uses

A

Stabilizing joints

37
Q

Polypropylene

A

Prolene, synthetic, monofilament, high memory, least reactive non absorbable

38
Q

Polypropylene Uses

A

Vascular surgery, neurologic, tendon repair

39
Q

Stainless Steel

A

Metallic, mono or multifilament, high tensile strength, hard to handle

40
Q

Stainless Steel Uses

A

Orthopedics, sternotomy repair, hernia repair

41
Q

Longest Tissue Healing

A

Trachea, ligament, tendon, fascia, intestine, subcutis, skin, ligation

42
Q

Longest Loss of Strength

A

Silk, PDS II, chromic gut, monocryl, vicryl, dexon, vicryl rapide, plaingut

43
Q

Suture Size

A

12-0 smallest and 7 largest by pharmacopeia, catgut larger

44
Q

Chance of Suture Reaction

A

multifilament > coated multifilament > monofilametn

45
Q

Wicking

A

fluid and bacteria carried into interstices of multifilament fibers

46
Q

Dehiscence

A

Failure of sutures to hold incision closed

47
Q

Dehiscence Causes

A

Apposition of unlike tissue, suture too tight, too much tension, poor technique

48
Q

Seroma

A

Increased dead space

49
Q

Needle Anatomy

A

Point, body/shaft, swaged end

50
Q

Taper Needle

A

Minimal trauma, must curve wrist to follow needle

51
Q

Cutting Needle

A

Facilitates tough tissue penetration, cutting edge on concave surface, reverse cutting edge on convex surface

52
Q

1/4 Circle Needle

A

Ophthalmic surgery

53
Q

1/2 Circle Needle

A

Commonly used

54
Q

3/8 Circle Needle

A

Superficial tissue or skin

55
Q

5/8 Circle Needle

A

Confined location or deep tissue

56
Q

Taperpoint Needle

A

Sharp tip piercing and spreading without cutting, intestine, SQ, and fascia

57
Q

Tapercut Needle

A

Combination of reverse cutting and taperpoint, heavy thick fascia and tendons

58
Q

Cutting Needle

A

Cutting edge on concave portion, cuts out of tissue

59
Q

Reverse Cutting Needle

A

Cutting edge on convex surface, reduces risk of tissue being cut out, skin

60
Q

Spatula Point Needle

A

Flat on top and bottom, ophthalmic procedures

61
Q

Blunt Point Needle

A

Dissects friable tissue without cutting, soft parenchyma organs

62
Q

Cyanoacrylates

A

Liquids become solid when contacting water in tissues, closes short skin lacerations, can delay healing, cause reaction, granuloma, and infection

63
Q

Skin Staplers

A

Rectangular appositional staples, place 5-6mm apart, can lead to rotation and eversion

64
Q

Thoracoabdominal Stapler

A

Parallel B shaped staples, used on lung or liver lobe resection, partial splenectomy, partial gastrectomy

65
Q

Gastrointestinal Anastomosis Stapler

A

B shaped staples and cuts in the middle, creates side to side anastomosis

66
Q

End to End Anastomosis Stapler

A

Creates circular end to end anastomosis

67
Q

Skin Closure

A

Non absorbable, minimal reactivity

68
Q

Skin Suture

A

Nylon, polypropylene, monocryl, 4-0 to 2-0

69
Q

Subcutaneous Closure

A

Rapid absorption

70
Q

Subcutaneous Suture

A

Monocryl, vicryl, PDY, 4-0 to 2-0

71
Q

Body Wall CLosure

A

Slow absorption, high tensile strength, good knot security

72
Q

Body Wall Suture

A

PDS, 3-0 to 0

73
Q

Stomach Closure

A

Slow absorption, low reactivity, good tensile strength

74
Q

Stomach Suture

A

PDS, monocryl, 4-0 to 2-0

75
Q

Small Intestine Closure

A

Slow absorption, low reactivity

76
Q

Small Intestine Suture

A

PDS, monocryl, 4-0 to 3-0

77
Q

Urinary Bladder Suture

A

PDS, 4-0 to 3-0

78
Q

Colon Suture

A

PDS, 4-0 to 3-0

79
Q

Pedicle Ligation Suture

A

PDS, 3-0 to 0

80
Q

Vessel Ligation Suture

A

PDS, 4-0 to 3-0

81
Q

Ligament and Tendon Suture

A

Nylon, 3-0 to 1

82
Q

Bird and Reptile Skin

A

Tends to invert, use everting patterns

83
Q

Oral Mucosa

A

Tends to invert, use everting patterns

Surgery (11 decks)

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