Trimbos J B, Booster M, Peters A A
Department of Gynecology and Reproduction, Leiden University Medical Center, The Netherlands.
Acta Obstet Gynecol Scand. 1991;70(2):157-9. doi: 10.3109/00016349109006200.
To improve the handling characteristics of synthetic resorbable monofilament PDS (polydioxanon), a second-generation (PDS-2) suture has been developed. The mechanical knot performance of this suture was tested in square knots and sliding knots and compared with other monofilament suture materials. Knot performance was defined by the loop holding capacity (LHC) and expressed in Newton's (N). Maxon (polyglycolid-three-methylene carbonate) had significantly better knot performance than the other sutures. Knot performance of Prolene (polypropylene) was significantly poorer than that of the other sutures. Ordinary PDS (polydioxanon) and PDS-2 (polydioxanon) showed intermediate results. Knot performance of PDS-2 was similar to (square knots) or poorer than (sliding knots) that of ordinary PDS. It was concluded that knot performance of ordinary PDS is not improved by the introduction of PDS-2. It is emphasized that surgeons should be aware of the mechanical properties of newly developed suture materials. Underlying factors and clinical implications of the mechanical performance of PDS-2 are discussed.
为改善合成可吸收单丝聚二氧杂环己酮（PDS）的操作特性，已研发出第二代（PDS - 2）缝线。对该缝线在方结和滑结中的机械打结性能进行了测试，并与其他单丝缝线材料进行比较。打结性能通过线环握持能力（LHC）来定义，单位为牛顿（N）。美生（聚乙交酯 - 三亚甲基碳酸酯）的打结性能明显优于其他缝线。普理灵（聚丙烯）的打结性能明显逊于其他缝线。普通PDS（聚二氧杂环己酮）和PDS - 2（聚二氧杂环己酮）的结果处于中间水平。PDS - 2的打结性能与普通PDS在方结时相似，在滑结时则比普通PDS差。得出的结论是，引入PDS - 2并未改善普通PDS的打结性能。强调外科医生应了解新研发缝线材料的机械性能。文中讨论了PDS - 2机械性能的潜在因素及临床意义。
