Suture materials

Question 1

Describe Cat Gut.

Answer 1

• chromic or plain
• Multifilament Chromic slows absorption, increases strength, decreases reactivity.
• Poor tensile strength
• poor knot security when wet
• prone to wicking
• Absorbed by phagocytosis
• Sub cut, muscle, hollow viscus, eye

Question 2

Describe Polyglactin 910

Answer 2

• Vicryl
• Synthetic and coated
• higher tensile strength
• Loses 50% of its strength in 14 days
• totally absorbed 60-90 days
• Considerable tissue drag
• careful placement of knots is necessary
• Sub-cut, intradermal, muscle layer, mucus membranes.

Question 3

Describe Polyglycolic Acid

Answer 3

• Dexon
• Loses 30% of strength in 14 days
• minimally absorbed by 90 days by hydrolysis
• Tissue drag is considerable
• Poor knot security
• Used sub-cut.

Question 4

Describe Polydioxanone

Answer 4

• PDS
• Monofilament
• Loses 30% in 2 weeks
• minimally absorbed at 90 days by hydolysis
• Minimal tissue reaction
• Tissue drag reduced
• Ideal in infected sites where absorbable material is required for long time
• Springy
• Mucous membranes, sub-cut, intradermal, muscle

Question 5

Describe Polyglyconate

Answer 5

• Maxon
• synthetic
• non absorbent
• Monofilament
• High tensile strength
• high memory
• Virtually no drag
• Minimal reaction.

Question 6

Describe Poliglecaprone 25

Answer 6

• Monocryl
• Synthetic
• Monofilament
• High tensile strength
• Only 30% original strength maintained by 14 days
• Broken down by hydrolysis
• Tissue reaction is minimal
• Drag reduced
• used sub cut, intradermal.

Question 7

List 6 basic suture patterns

Answer 7

• Simple interrupted
• Simple continuous
• Cruciate Mattress
• Vertical Mattress
• Horizontal Mattress
• Ford interlocking Suture

Question 8

List 3 closure techniques

Answer 8

• Sutures
• Staple Gun
• Tissue Glue