Suture Patterns Flashcards
Interrupted suture patterns
Simple
Cruciate
Horizontal Mattress
Vertical Mattress
Continuous suture patterns
Simple Continuous
Intradermal
Ford Interlocking
Cushing, Connell & Lembert
Purse String
Most secure knot
Square knot
Square knot
Surgeon’s Knot
Granny knot - NOT SECURE
Half-Hitch (slip)
-UNEVEN TENSION!
Knot security
Suture size and knot security relationship:
Inverse
minimizing knot volume
General # of proper throws
4
Minimizing knot volume
Cut tags – apporpriate length
Synthetic: sharp (3mm)
Natural: blunt (6mm)
Suture pattern 1º and 2º factors
1º = placement method
2º = effect on wound margin
Appositional suture pattern:
hold tissue in place in normal anatomical alignment
Horizontal Mattress vs. Vertical Mattress
HM: everted suture pattern
- fascia
VM: appositional suture pattern
- stronger in tissues under tension
Risk with continous sutures
suture line compromise
Simple Continuous suture pattern?
appositional
Becomes Everting if tied too tightly!
Simple Continuous uses
Luminal organs, body wall (SQ closure)
Pattern? Uses?
Ford Interlocking
- Large animal
- abdominal incisions in SA
- good stablity, great apposition
pass needle thru loop -> when you pull through, it partially locks the suture as you’re moving
Suture pattern? Method? Uses? Precautions?
Intradermal Pattern - sutures stay just below the surface of the skin. Bites start @ wound marigin – have to use specialized knots
- variation of continuous horizontal mattress
- use: sensitive areas, difficult patients
- less secure than percutaneous sutures!
