Polypropylene Sutures

What Duracare Polypropylene Sutures Are

Duracare Polypropylene Sutures are synthetic, non-absorbable monofilament surgical sutures composed of an isotactic crystalline stereoisomer of polypropylene, a linear polyolefin. Because polypropylene is not absorbed and is not degraded or weakened by tissue enzymes, the suture provides sustained, permanent wound support. The sutures are dyed with phthalocyanine blue for easy identification against tissue during surgery.

Composition and Construction

Each suture is manufactured from a 100% homopolymer of polypropylene, giving a single-strand monofilament with no coating. The monofilament structure presents a smooth surface with low tissue adherence, and the material is chemically inert, producing a minimal initial inflammatory reaction followed by gradual encapsulation in fibrous connective tissue. Because it is not absorbed, it may be useful in surgical wounds that later become infected or contaminated, where sinus formation and suture extrusion may be minimized. Where applicable, the suture is permanently attached to stainless steel surgical needles drawn from 300-series alloy steel.

Handling Characteristics

The monofilament design allows the suture to pass through tissue easily and supports straightforward knot placement. Polypropylene offers high tensile strength and does not elongate during knotting, which contributes to knot security. Tissue reaction is graded slight (Grade-1). The material is recommended where minimal tissue reaction is desired and performs well as a pull-out suture.

Presentations and Applications

Sutures are supplied in a broad range of USP gauges from 8-0 through to size 2, in various suture lengths and needle configurations. Typical applications include general, gastrointestinal, hepatobiliary, orthopaedic, plastic and reconstructive, urological, paediatric and oral and maxillofacial surgery. Suture selection should reflect patient condition, tissue type, wound size, surgical technique, and the need for non-absorbable support, according to surgeon preference and clinical judgment.