Suture Materials Quiz
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Questions and Answers

What is the main difference between absorption through phagocytosis and hydrolysis?

  • Hydrolysis is a more aggressive form of absorption than phagocytosis
  • Phagocytosis is a more aggressive form of absorption than hydrolysis (correct)
  • Phagocytosis and hydrolysis are not related to absorption
  • Phagocytosis and hydrolysis have the same level of aggressiveness

    • What is the advantage of using monofilament over multifilament when there is an infection in the wound?

  • Multifilament is stronger than monofilament
  • Multifilament is easier to handle than monofilament
  • Monofilament has a smaller surface area, reducing the risk of further bacterial colonization (correct)
  • Monofilament is cheaper than multifilament

    • What is the difference between the sizing of suture materials in the EU and the US?

  • EU uses the metric system based on the size diameter of suture material, while the US uses tensile strength (correct)
  • EU and US do not have a standard sizing system for suture materials
  • EU uses tensile strength, while the US uses the size diameter of suture material
  • EU and US use the same sizing system

    • What is the advantage of using swaged needles over eyed needles?

    <p>Swaged needles cause minimal tissue trauma and are single-use (A)</p> Signup and view all the answers

    What is the property of needles that allows them to bend rather than break?

    <p>Ductility (D)</p> Signup and view all the answers

    What is the advantage of natural suture materials over synthetic ones?

    <p>Easy to knot (C)</p> Signup and view all the answers

    What is the difference between absorbable and non-absorbable suture materials?

    <p>Absorbable sutures disappear while non-absorbable sutures stay in place indefinitely (B)</p> Signup and view all the answers

    What is the advantage of multifilament suture materials over monofilament ones?

    <p>Excellent knotting (C)</p> Signup and view all the answers

    What is tissue drag or chatter?

    <p>How easy the suture material passes through the tissues we are suturing (D)</p> Signup and view all the answers

    What is the difference between natural and synthetic suture materials in terms of histocompatibility?

    <p>Natural suture materials have high histocompatibility while synthetic ones have low histocompatibility (B)</p> Signup and view all the answers

    What are the ideal characteristics of an ideal suture material?

    <p>High tensile strength, easy-to-use for surgeons, easy to tie knot, highly uniform tensile strength, non-toxic, non-carcinogenic and non-allergenic, easily sterilised, minimise bacterial adhesion, standardisable characteristics, maintain its properties for sufficient time, inexpensive (B)</p> Signup and view all the answers

    What is the process of applying a suture called?

    <p>Suturing (D)</p> Signup and view all the answers

    What is a ligature?

    <p>A material used to close blood vessels and stop haemorrhages (A)</p> Signup and view all the answers

    Why is there no ideal suture material that is useful for all surgical procedures?

    <p>Because different wounds require different types of suture material (C)</p> Signup and view all the answers

    What is an example of a natural suture material?

    <p>Silk (C)</p> Signup and view all the answers

    What are the ideal characteristics of an ideal suture material?

    <p>Easily sterilized (A)</p> Signup and view all the answers

    What is the difference between natural and synthetic suture materials in terms of histocompatibility?

    <p>Natural suture materials are more compatible with human tissue than synthetic ones (A)</p> Signup and view all the answers

    What is the material used to close blood vessels and stop haemorrhages known as?

    <p>Ligament (C)</p> Signup and view all the answers

    What is the process of absorbing suture material called?

    <p>Phagocytosis (A)</p> Signup and view all the answers

    What is the advantage of using monofilament suture material over multifilament in the presence of infection?

    <p>It causes less tissue damage (C)</p> Signup and view all the answers

    What is the most important part of a needle?

    <p>The point (C)</p> Signup and view all the answers

    What is the difference between the sizing of suture materials in the EU and the US?

    <p>EU measures based on diameter (A)</p> Signup and view all the answers

    What is the advantage of using natural suture materials over synthetic ones?

    <p>They have higher histocompatibility (A)</p> Signup and view all the answers

    What is the difference between monofilament and multifilament suture materials?

    <p>Their ability to retain original configuration (A)</p> Signup and view all the answers

    What is the advantage of using non-absorbable suture materials?

    <p>They provide indefinite support (C)</p> Signup and view all the answers

    What is the process of bringing tissues together and keeping them together while healing occurs called?

    <p>Suturing (D)</p> Signup and view all the answers

    What is the ideal characteristic of suture material that inhibits tissue reactions and wicking?

    <p>Non-toxic and non-carcinogenic (D)</p> Signup and view all the answers

    What is the material used to close blood vessels and stop haemorrhages known as?

    <p>Ligament (D)</p> Signup and view all the answers

    Why is there no ideal suture material that is useful for all surgical procedures?

    <p>The healing rate of wounds is different (D)</p> Signup and view all the answers

    What is an example of a natural suture material?

    <p>Catgut (D)</p> Signup and view all the answers

    What is the advantage of using natural suture materials over synthetic ones in terms of knotting?

    <p>Natural materials have better knotting than synthetic ones (C)</p> Signup and view all the answers

    What is the definition of an absorbable suture material?

    <p>A material that is fully degraded and absorbed by the body once it's been placed (B)</p> Signup and view all the answers

    What is the advantage of using non-absorbable suture materials?

    <p>They provide indefinite support (B)</p> Signup and view all the answers

    What is the difference between monofilament and multifilament suture materials in terms of tissue trauma?

    <p>Monofilament causes greater tissue trauma than multifilament (C)</p> Signup and view all the answers

    What is the property of monofilament suture materials that makes them potentially more difficult to tie knots with safely?

    <p>Greater memory (D)</p> Signup and view all the answers

    What is the process by which suture material is absorbed through phagocytosis or hydrolysis called?

    <p>Suture material absorption (D)</p> Signup and view all the answers

    What is the difference between the sizing of suture materials in the EU and the US?

    <p>EU sizes based on diameter, US sizes based on tensile strength (B)</p> Signup and view all the answers

    What is the advantage of using catgut as a suture material?

    <p>It is absorbed through phagocytosis, which is less aggressive than hydrolysis (B)</p> Signup and view all the answers

    What is the difference between swaged needles and eyed needles?

    <p>Swaged needles are less traumatic to tissues than eyed needles (C)</p> Signup and view all the answers

    What is the most important part of a needle?

    <p>The point (D)</p> Signup and view all the answers

    What is the process of bringing tissues together and keeping them together while healing occurs called?

    <p>suturing</p> Signup and view all the answers

    What is the material used to close blood vessels and stop haemorrhages known as?

    <p>ligature</p> Signup and view all the answers

    What is the advantage of using natural suture materials over synthetic ones?

    <p>better biocompatibility</p> Signup and view all the answers

    What is tissue drag or chatter?

    <p>the resistance encountered when the needle and suture material pass through the tissue</p> Signup and view all the answers

    What is the process of absorbing suture material called?

    <p>hydrolysis</p> Signup and view all the answers

    ______ is a natural product and is absorbed through phagocytosis, whereas a lot of synthetic suture materials are absorbed through hydrolysis so less aggressive

    <p>Catgut</p> Signup and view all the answers

    The least suture material we need to place, the ______

    <p>better</p> Signup and view all the answers

    The deeper the wound, the ______ the needle's radius of curvature

    <p>more curved</p> Signup and view all the answers

    Needles can be bent and then bent back - this property is called ______

    <p>ductility</p> Signup and view all the answers

    The point, the body, and the eye are the three most important parts of a ______

    <p>needle</p> Signup and view all the answers

    _______ is the breaking strength per unit area.

    <p>Tensile strength</p> Signup and view all the answers

    _______ is the tendency to retain original configuration.

    <p>Memory</p> Signup and view all the answers

    _______ is how easy the suture material passes through the tissues we are suturing.

    <p>Chatter and Tissue Drag</p> Signup and view all the answers

    _______ material is fully degraded and absorbed by the body once it's been placed.

    <p>An absorbable</p> Signup and view all the answers

    _______ suture material stays in place for an indefinite period of time without changing in any way.

    <p>Non-absorbable</p> Signup and view all the answers

    Study Notes

    Absorption Mechanisms

    • Phagocytosis is a process where natural sutures, like catgut, are absorbed through immune cell activity.
    • Hydrolysis involves synthetic sutures being broken down by water, typically resulting in a less aggressive absorption.

    Suture Material Selection

    • Monofilament sutures reduce infection risk due to fewer spaces between fibers compared to multifilament sutures.
    • Natural sutures offer advantages in knot security owing to their better handling properties compared to synthetic materials.

    Needle Characteristics

    • Swaged needles allow for smoother passage through tissues and eliminate the need for eyeholes, reducing tissue trauma.
    • The body of the needle is designed to bend without breaking, providing flexibility during suturing.
    • Key components of a needle include the point, body, and eye, essential for effective suturing.

    Suture Sizing

    • EU suture sizing follows the metric system, while US sizing is based on a logarithmic scale, creating differences in standardization.

    Suture Material Properties

    • Absorbable sutures degrade over time and dissolve within the body, while non-absorbable sutures provide long-term support.
    • Multilayered suture materials provide excellent tensile strength but can lead to increased tissue trauma compared to monofilament options.

    Tissue Handling

    • Tissue drag or chatter refers to the friction between suture material and tissue during suturing, which can affect healing.
    • The process of uniting tissues during surgery is called wound closure, essential for healing.

    Ideal Suture Characteristics

    • Ideal sutures should minimize tissue reactions, maintain strength, and facilitate ease of handling.
    • Histocompatibility varies; natural sutures often integrate well with tissue, while synthetic materials may provoke varying reactions.

    Surgical Tools Usage

    • A ligature is used to constrict blood flow, helping in diverse surgical applications including haemostasis.
    • There is no universally ideal suture due to varying surgical requirements and tissue types.

    Absorption Processes

    • The term for the absorption of suture material encompasses both phagocytosis and hydrolysis, depending on the suture type.

    Key Suture Material Examples

    • Catgut is a well-known natural suture material primarily composed of sheep or goat intestines, valued for its absorbability.

    Knotting and Functionality

    • Monofilament sutures are generally harder to tie securely due to their rigidity, posing a challenge for knot integrity.
    • Non-absorbable sutures maintain structural integrity indefinitely, whereas absorbables are gradually degraded and absorbed by the body.

    Additional Key Concepts

    • The deepest the wound, the larger the needle's radius of curvature required.
    • The breaking strength per unit area is crucial for suture performance, affecting their selection based on the surgical scenario.

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    Description

    Test your knowledge on suture materials and their characteristics with this quiz. Learn about the process of suturing and the ideal qualities of suture materials. Keywords: suture materials, suturing, characteristics, ideal suture.

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