SUTURES & LIGATURES 4 Non absorbables

NONABSORBABLE LIGATURES AND SUTURES

Nonabsorbable sutures are not generally used in an infected wound as they may cause sinus formation.

Silk

This material, generally white or black, is braided from numerous fine strands of silk. It is supplied on sterilizable spools 20 to
100 m (25 to 125 yds), or in multiple precut lengths ranging from 35 to 45 cm (14 to 18 in), and a single precut length of
1.8 m(72 in).

         The sizes available are 0. 4(8/0) (Virgin silk), and from 0. 7 to 6(6/0 to 4) or even stronger. It is important to use serum-proofed silk to reduce capillary attraction which is a peculiarity of plaited or braided materials. Examples of these materials include D and G silk (Davis and Geck), Mersilk (Ethicon), and Surgisilk (Surgicraft).

         Alternatively, threaded needles can be autoclaved as required for an operation.

Linen

Origin from fibers of flax plant, it has a braided construction, spun and twisted. Relatively pliant and easy to handle. ‘Drags’ through tissues, knots very securely. Evokes minor to moderate tissue reaction. Gains strength on wetting.

Uses

It is used as a general ligature where a strong firm tie is essential.

Cotton

Origin from fibers of cotton bush and is braided is not as strong as silk. Gains strength on wetting.

Uses

It is used similar to silk.

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