Suture materials nonabsorbable sutures

Nonabsorbable suture materials, 24 207 Nonactin, chelating agent, 5 710 Nonadecanoic acid, physical properties, 5 29t... 

In general, absorbent sutures are composed of materials that are natural to mammals, such as catgut, and to materials that are either quite susceptible to hydrolysis and/or polymers derived from natural materials such as polyglactin, which is a copolymer of lactic and glycolic acid. Nonabsorbent sutures can be made from natural materials such as cotton, which is a plant material, polymers that range from being hydrophobic to hydrophilic, and steel. 

The section on nonabsorbable sutures starts with silk as the natural material... 

Casey, D J and Lewis O G (1986), Absorbable and nonabsorbable sutures , in von Recum A F, Handbook of Biomaterials Evaluation Scientific, Technical, and Clinical Testing of Implant Materials, New York, Macmillan Publishing, 86-94. 

However, the availability of some new synthetic long-lasting absorbable sutures pushes the tensile strength retention period beyond 2-3 months. Table 10.A.1 in the Appendix at the end of this chapter summarizes all commercial absorbable and nonabsorbable suture materials that are available in the United States, Europe and the Pacific, their generic and trade... 

Nonabsorbable sutures are divided into natural fibers (silk, cotton, linen), and man-made fibers. The latter include polypropylene, polyanfide, polyester, poly(ether ester), polytetrafluoroethylene (Gore-Tex ), polyvinylidine fluoride (PVDF), and stainless steel. Monofilament Dyloc (from Dynek, Australia) is unusual among synthetic nonabsorbable sutures because it is made from a nonconventional man-made fiber poly(ether ester) (Fig. 10.2). The main types of material for both absorbable and nonabsorbable sutures are discussed in Chapter 11. 

Partial source Casey, D.J. and Lewis, O.G., Absorbable Nonabsorbable Sutures, In Handbook of Biomaterials Evaluation Scientific,Technical, and ClinicalTesting of Implant Materials, Von Recuin, A.F. (ed.), Macmillan Publishing, New York, 1986, Chap. 7. 

Table 8.2 A List of Commercially Available Nonabsorbable Suture Materials...

Once applied, absorbable suture materials are digested by tissues during the healing process, while nonabsorbable suture materials resist enzymatic digestion and are normally removed after a period of time post surgery. For example, sutures used on face and head are usually removed after 5 days, those used on legs and abdomen are removed after 7-10 days, and for surgery on the back sutures are usually removed after 10-14 days. 

Sutures remain the most common method of tpproximating the divided edges of tissue (1). Sutures are categorised by size, material, design and behaviour. Absorbable and nonabsorbable materials are further divided into synthetic versus natural products, some of vdiich can be fabricated in braided and/or monofilament form. Non-absorbable sutures have played an important role in the development of surgical procedures, generally made of silk, polyamide, polyester, polypropylene, polyethylene and poly(tetrafluoroethylene) (2). 

The previous chapter provided a general overview of the properties of materials used for surgical sutures and of the desirable characteristics of such materials. This chapter considers absorbable and nonabsorbable materials in greater detail, looking within each category first at natural materials, and second at synthetic materials. In the section on absorbable materials, natural materials reviewed are ... 

Materials for absorbable and nonabsorbable surgical sutures 279 Table 11.1 Building blocks of commercial synthetic absorbable sutures... 

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