Product Manual

The first knot in a percutaneous and dermal suture closure
usually has a square knot construction. A tied square knot suture
has three components (Figure 6). The loop created by the knot
maintains the apposition of tissue. The knot is composed of a
number of throws secured against each other. The ears are the cut
ends of the suture, which add security to the knot by preventing
untying during slippage.
At the end of a percutaneous and dermal closure, te knot must
be constructed as a square knot with a single strand and a suture
loop. A square knot of an interrupted suture loop is formed by
two single throws in which the right ear and loop come out in a
position that is directly opposite to that of the left ear and loop.
The configuration of a knot using a looped suture end and a fixed
suture end attached to a needle is markedly different from the
interrupted knotted suture loop in which knot construction is
accomplished by two separate strands of sutures. The interrupted
suture has a knot constructed by two single strands. In contrast,
knots constructed with a suture loop have two suture strands that
Figure 6. Construction of a square knot with
two single strands.
Figure 7. Construction of a square knot with
a single strand and suture loop.
IV. components of a knotted suture loop (cont’d)
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