Lecture 8 9/4/24

Question 1

What are the characteristics of a simple interrupted pattern?

Answer 1

-maintains strength if one suture fails
-can adjust tension on the wound with each segment
-can use the “halves” method on irregular incisions
-slower
-requires more suture material

Question 2

What are the characteristics of a cruciate suture?

Answer 2

-tension relieving
-allows good tissue apposition
-quicker than simple interrupted
-fewer knots
-useful for skin and fascial plane apposition

Question 3

What are the general guidelines when placing cruciate sutures in small animal?

Answer 3

-bites 5mm from wound edge
-sutures 5-10mm apart
-used for apposition only

Question 3

What are the characteristics of a vertical mattress suture?

Answer 3

-tension relieving
-causes eversion/pulls wound edges up
-placed just below dermis
-overtightening can lead to tissue necrosis
-safer to blood supply compared to horizontal mattress

Question 4

What are the general guidelines when placing vertical mattress sutures in small animal?

Answer 4

-near bites 5mm from wound edge
-far bites 10 mm from wound edge
-spaced 5mm apart or greater

Question 5

What are the characteristics of a horizontal mattress suture?

Answer 5

-tension relieving
-causes eversion
-placed just below the dermis
-overtightening can compromise local blood supply
-better as a continuous pattern; less damage

Question 6

What are the general guidelines when placing horizontal mattress sutures in small animal?

Answer 6

-width of bites is greater than or equal to tissue thickness; 5mm
-space sutures twice the width apart; 10mm

Question 7

What are the characteristics of a near-far-far-near suture?

Answer 7

-tension relieving
-good for traumatic wounds

Question 8

What are the characteristics of a simple continuous pattern?

Answer 8

-bites about 3-5mm
-sutures spaced twice the distance of the bites, 6-10mm

Question 9

What are the characteristics of a ford interlocking pattern?

Answer 9

-similar to simple continuous, but each stitch is more connected
-generally limited to skin
-mostly used in food animal

Question 10

What are the characteristics of a continuous horizontal mattress pattern?

Answer 10

-everting
-may compromise blood supply to wound margin

Question 11

What are the characteristics of cushing and connell patterns?

Answer 11

-used in surgery of hollow organs
-bites are parallel to the incision
-inverting

Question 12

How does a connell pattern differ from a cushing pattern?

Answer 12

Connell: suture enters lumen
Cushing: suture does NOT enter lumen

Question 13

What are the characteristics of a lembert pattern?

Answer 13

-inverting
-transverse/perpendicular bites
-used most commonly in hollow organs
-does not enter the lumen/mucosa