Needles and suturing

Question 1

When are cutting needles used?

Answer 1

Fibrous tissue

E.g. fascia, skin

Question 2

When are round bodied needles used?

Answer 2

Soft tissue surgery
Muscle
E.g. organs - bladder, intestine

Question 3

Describe the features of cat gut as a suture material - non/absorbable, filament, advantages, disadvantages

Answer 3

Absorbable
Multifilament
Good knot security and handling
But very reactive to tissues

Question 4

Describe the features of polydioxanone (PDS) as a suture material - non/absorbable, filament, advantages

Answer 4

Absorbable
Monofilament
Great strength and knot security

Question 5

Describe the features of polyglactin 910 (vicryl) as a suture material - non/absorbable, filament, advantages

Answer 5

Non-absorbable
Mono filament
Good strenghth and handling

Question 6

Describe the features of polyadmide (nylon) as a suture material - non/absorbable, filament

Answer 6

Non-absorbable

Mono

Question 7

Which suture material should be avoided in rabbits and why?

Answer 7

Catgut

High risk of adhesions

Question 8

What type of suture material should be used to ligate a blood vessel or ovarian pedicle - absorbable or non-absorbable?

Answer 8

Absorbable

E.g. polydioxanone (PDS), polyglactin 910 (vicryl)

Question 9

Give an example of suture material that can be used for interuppted skin sutures

Answer 9

Nylon (polyamide)

Non-asborbable

Question 10

Give an example of suture material that can be used for intradermals

Answer 10

Polyglactin 910 (vicryl)
Monocryl