The Choice of a Suture to Close Abdominal Incisions

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Abstract
Burst abdomen, incisional hernia and sinus formation continue to bedevil the surgeon. Significant associated factors include postoperative wound infection and the suture material used. A series of experiments was therefore designed to test suture materials for their use in infected abdominal wound closure. The nearest to the ideal, is a monofilament non-absorbable suture (monofilament nylon). It has a low infectivity, resulted in satisfactory wound tissue strength when used in infected wounds, and retained its strength. Infected, braided sutures of silk, nylon and polyglycolic acid even after 70 days were seen to contain bacteria and polymorphonuclear cells when examined electron microscopically. Absorption of silk and polyglycolic acid and encapsulation of non-absorbable braided nylon was delayed by the presence of infection. Monofilament nylon, in contrast, was unaffected, a fibrous capsule having formed by 10 days even in the infected state.