L04: Suture Needles, Surgical Knots, and Suture Patterns (Freeman)

Question 1

2 types of needles

Answer 1

swaged

eyed

Question 2

adv. of swaged needles

Answer 2

less traumatic
already attached
disposable

Question 3

adv. of eyed needles

Answer 3

reusable

preferred for large suture sizes/specialty needles

Question 4

disadv. of eyed needles

Answer 4

dulls
bulky at suture attachment - more traumatic
suture can detach

Question 5

reverse cutting needle

Answer 5

• needle triangular shaped
• cutting edge on convex side
• lower risk of cutting out of tissue
• greater needle strength

Question 6

noncutting needle

Answer 6

• sharp point, no edges
• best in soft easily penetrated tissue like muscle or viscera
• not good for skin!!

Question 7

trocar point needle

Answer 7

• body of needle round but point is short

- cartilage (ie. laryngoplasty)

Question 8

taper cut needle

Answer 8

-reverse cutting point with a round shaft that is useful in delicate fibrous tissue

Question 9

tension sutures require longer needles

Answer 9

:)

Question 10

categories of suture pattern

Answer 10

anatomical (bowel, tendon)
appositional (all layers)
inverting (intestine, bladder, uterus)
everting (skin)
tension relief (abd. and thoracic walls)
continuous or interrupted