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Synthetic sutures consisting of monofilament nylon fibers made from nonabsorbable (i.e., nonbiodegradable) aliphatic (e.g., polyamide 6) polymer. These sutures are typically available in sterile coated thread sections (e.g., 18, 30 in [45, 76 cm] long) attached to a single-use needle as an integral device; they are frequently colored for easy identification during surgery. Nylon sutures keep their tensile strength for very long periods of time; nylon is not absorbed, but hydrolysis may result in gradual loss of tensile strength over time. Nylon nonabsorbable sutures\' intended use includes general soft-tissue approximation.
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