Intro to Suture Patterns and Suturing skin

Question 1

Classification of sutures based on complexity

Answer 1

Simple - one pass through tissue on each side of the incision
Complex - two passes through tissue on each side of the incision (mattress)

Question 2

Classification of sutures based on continuity

Answer 2

Interrupted - sutures placed individually

Continuous - sutures placed consecutively after initial knot

Question 3

Classification based on effect on incision edges

Answer 3

Appositional, Inverting, Everting, Tension relieving

Question 4

Appositional

Answer 4

brings incision edges together; no excessive tension on skin

Question 5

Inverting

Answer 5

incision edges turned inward; hollow organs to minimize risk of luminal content leakage

Question 6

Everting

Answer 6

incision edges turned upward; use in areas under tension

Question 7

Tension - relieving

Answer 7

decreases tension on suture line

Question 8

Goals of suturing

Answer 8

Appose like tissues to increase healing.
Close dead space to lower risk of seroma formation.
Avoid eversion or inversion when closing the skin to increase healing.
Aim for symmetry.

Question 9

Instruments for suturing skin

Answer 9

Suture material - preferrably monofilament

Surgical needle - cutting needle