Lecture 4

Question 1

3 ways needles are described

Answer 1

Geometric shape
needle point configuration
method of suture attachment

Question 2

What shaped needle is used superficially and directly manipulated by the surgeon’s hands

Answer 2

straight needle

Question 3

What shaped needles are used in deep or small surgical fields and are always manipulated with needle holders

Answer 3

curved needle

Question 4

What needle circle fraction size is used for opthalmic procedures

Answer 4

1/4

Question 5

What needle circle fraction size is used for abdominal closure

Answer 5

3/8 and 1/2

Question 6

What needle fraction size is best for deep or inaccessible surgical fields

Answer 6

1/2 or 5/8

Question 7

What type of needle point is used for friable tissue

Answer 7

blunt

Question 8

What type of tissues are taper point needles used for

Answer 8

delicate tissues - GI organs, fat, urinary bladder, and muscle

Question 9

What type of tissue is cutting needles used for

Answer 9

tough fibrous tissue such as skin, periosteum, and fascia

Question 10

Standard cutting needles have their cutting surface on the ________ surface of the needle and are infrequently used.

Answer 10

concave

Question 11

What is the problem with having the concave surface as the cutting side

Answer 11

surgeons tend to put more pressure on the concave side causing increased needle hole size and suture pull out

Question 12

Reverse cutting needles have their cutting surface on the ________ side and are associated with less________.

Answer 12

convex

needle hole size and suture pull out

Question 13

This type of suture attachment is most common because their attachment is seamless?

Answer 13

swaged needles

Question 14

Swaged on needles have minimal ________ and _______?

Answer 14

tissue drag and trauma

Question 15

Diamond point needles are used for plastic surgery because?

Answer 15

they have 4 cutting edges that provide less resistance to skin penetration and allow better skin apposition and less scarring

Question 16

What are spatula point needles used for

Answer 16

ocular surgery

Question 17

What suture attachment is less common in small animal surgery and more common in large animal orthopedic surgery

Answer 17

eyed-suture needles

Question 18

Simple interrupted suture

Answer 18

appositional
more precise wound margin apposition
allow selective adjustments to wound closure
quick and easy to place
disruption of single suture doesn’t result in loss of entire suture line
time -consuming/ more foreign material in wound

Question 19

horizontal mattress

Answer 19

everting
used in areas of tension
can cause local ischemia

Question 20

cruciate

Answer 20

appositional
used in areas of tension
less eversion and ischemia than horizontal mattress

Question 21

vertical mattress

Answer 21

everting
stronger than horizontal mattress in areas of tension
time consuming to place

Question 22

Lembert

Answer 22

inverting

can be continuous to close hollow viscera

Question 23

Gambee

Answer 23

appositional
used in intestinal surgery to minimize mucosal eversion
requires more tissue manipulation than simple interrupted
may enhance healing

Question 24

continuous suture patterns

Answer 24

quicker to insert
distribute tension evenly
used for viscera, body wall, SQ tissue, and intradermal
avoided for skin because of risk of losing entire suture line

Question 25

simple continuous

Answer 25

appositional

air and fluid tight

Question 26

Ford interlocking

Answer 26

appositional
better tissue stability than simple continuous 
quick to place
uses a lot of suture
more difficult to remove

Question 27

continuous Lembert

Answer 27

inverting

causes more inversion than other inverting patterns

Question 28

Connell and Cushing

Answer 28

inverting

used to close hollow viscous because creates water tight seal

Question 29

Intradermal

Answer 29

appostional

used in areas or patients that you do not want to remove sutures from

Question 30

Whats the weakest part of the line?

Answer 30

knot