7. Suture materials, stiches

Natural suturing materials absorb enzymatically.

T

Natural suturing materials absorb by hydrolysis.

F

Synthetic suturing materials absorb by hydrolysis.

T

Synthetic suturing materials absorb enzimatically.

F

Synthetic suturing materials absorb by hydrolysis, natural suturing materials absorb enzymatically.

T

Synthetic suturing materials absorb enzimatically, natural suturing materials absorb by hidrolysis.

F

Both synthetic and natural suturing materials are absorbed by hydrolysis.

F

The advantages of natural suturing materials include ease of handling, secure knot retention and minimal tissue reaction.

F

Natural suturing materials are easy to handle.

F

Natural suturing materials have a strong inflammatory tissue response, their absorption is unpredictable and their production is expensive.

T

Synthetic suturing materials are more economical to produce and their absorption is more predictable, but their knotting and knot retention are worse than natural sewing materials.

T

The criteria for "ideal suturing material" were defined by Sir Berkeley Moynihan in 1920.

T

Nowadays suturing materials fully meet the criteria for ideal sewing materials.

F

According to the structuring classification of suturing materials, monofilament and multifilament materials are differentiated.

T

According to the structuring classification of suturing materials, pseudomonofilament and multifilament materials are differentiated.

F

To combine the advantages of monofilament and multifilament suturing materials, multifilament threads are coated with a layer which called pseudomonofilament threads.

T

Multifilament threads are characterised by flexibility, ease of handling and good knot retention.

T

Monofilament threads have smooth surface on which it is more difficult for microbes to adhere, and there are no capillarity along the thread and also no tumour cell transport.

T

Thread memory is a characteristic of multifilament suturing materials.

F

Traumatic needles do not need to be threaded, the suture is a straight continuation of the needle.

F

Atraumatic needles do not need to be threaded, the suture is a straight continuation of the needle.

T

Traumatic needles include traditional eyed needles and French needle with a split eye.

T

The advantages of traumatic needles include the fact that they can be used more than once, they can be re-threaded if the thread slips, but they leave a larger needle channel which causes more tissue trauma.

T

Atraumatic needles can be rethreaded.

F

The distance between the tip of the needle and the eye is the length of the needle, given in mm.

T

According to the cross section of the needle's body round bodied needles and cutting needles can be differentiated.

T

Cutting needles are used for sewing harder tissues (leather, scar tissue).

T

The use of blunt-point needles is recommended for sutures of parenchymal organs.

T

Spatula-shaped needles used in ophthalmology.

T

Threads providing very long term tissue holding time retain their tensile strength for more than 8 weeks.

T

Thread memory is characterized on this suturing material?

a) Twisted multifilament

b) Braided multifilament

c) Monofilament

d) Pseudomonofilament

c

Criteria for the ideal suturing material is defined by:

a) Joseph Lister

b) Berkeley Moynihan

c) Franz Kuhn

d) Carl Braun

b

Characteristic of monofilament threads:

a) Capillarity

b) Tumour cell transport

c) Microbatransport

d) Thread memory

d

Which colour of suturing material is unfortunate to use?

a) Blue

b) Beige

c) Red

d) White

c

Atraumatic needles:

a) Must be threaded several times

b) Makes a larger sting channel

c) Single use

d) Should be sterilized

c

Traumatic needles:

a) It's threaded

b) Leaves a small sting channel

c) Single use

d) Results in a larger sting channel

d

How long do very short-term tissue holding threads provide wound retention?

a) 1-2 days

b) 7-14 days

c) 30 days

d) 7 days

b

How long do short-term tissue holding threads provide wound retention?

a) 1 week

b) 2 weeks

c) 2-3 weeks

d) 4 weeks

c

How long do medium-term tissue holding threads provide wound retention?

a) 4-5 weeks

b) 2-3 weeks

c) 6-7 weeks

d) 1 month

a

How long do long-term tissue holding threads provide wound retention?

a) 1-2 weeks

b) 3-4 weeks

c) 5-6 weeks

d) 7-8 weeks

d

Suturing materials can be classified:

a) By material

b) By structure

c) By absorption

d) By material, by structure and by absorption

d

Properties of the ideal suturing material:

a) Monofilament

b) Easy to handle

c) Minimal tissue reaction

d) Monofilament, easy to handle and minimal tissue reaction

d

What type of suturing material is the thread memory specific for?

a) Twisted multifilament

b) Braided multifilament

c) Pseudomonofilament

d) Monofilament

d

True for monofilament threads:

a) Poor knot holding

b) Thread memory

c) No microbatransport

d) Poor knot holding, thread memory and no microbatransport

d

True for multifilament threads:

a) Microbatransport

b) No capillarity

c) Easy to handle

d) Easy to handle, microbatransport

d

True for multifilament threads:

a) Cutting, sawing

b) Tissue trauma

c) Good knot holding

d) Cutting and sawing, tissue trauma, good knot holding

d

Characteristic of the ideal needle:

a) Suitable tip

b) Corrosion-free

c) Antimagnetic

d) Suitable tip, corrosion-free and antimagnetic

d

Basic types of surgical suture needles today:

a) Traumatic

b) Atraumatic

c) French needle

d) Traumatic and atraumatic

d

The tip of the needle can be:

a) Pointed

b) Blunt

c) Cutting

d) Pointed, blunt and cutting

d

The shape of the needle can be, except:

a) Straight

b) Circular

c) U-shaped

d) S-shape

c

Blunt-point needle is used in:

a) In parenchymal organs

b) For scar tissue

c) For HIV or hepatitis patients

d) Parenchymal organs and in HIV or hepatitis patient

d