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Synthetic sutures consisting of nylon fibers made from nonabsorbable (i.e., nonbiodegradable) aliphatic (e.g., polyamide 6) polymers. 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 synthetic sutures\' intended use includes general soft-tissue approximation and suturing of internal organs and tissues.
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