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简体中文Fast-Absorbing Polyglactin 910 Sutures
Fast-absorbing polyglactin 910 is a synthetic absorbable suture material with the same composition as standard polyglactin 910 — a copolymer of 90% glycolide and 10% L-lactide, braided and coated. It is absorbed by hydrolysis and intended for procedures needing only short-term tissue support.
Why it matters
The name suggests a different material, and it is not one. Fast-absorbing polyglactin 910 is the same copolymer, in the same construction, absorbed by the same mechanism as the standard form. What differs is how long the strand is intended to support tissue, and that difference is introduced in processing rather than in the polymer. The distinction matters because it tells a clinician where to look. Composition does not separate the two forms, so nothing on a material specification will; the strength-retention and absorption figures in each product's instructions for use are the only place the difference is actually written down.
The composition is the same
Fast-absorbing polyglactin 910 and standard polyglactin 910 are the same copolymer. Both are built from glycolide and L-lactide in the same proportion — 90% glycolide, 10% L-lactide — braided into a multifilament strand, coated, and absorbed by hydrolysis, in which water reaches the ester backbone and cleaves it. Nothing in that description separates the two forms, and that is worth establishing first, because the naming implies otherwise.
It is a real departure from how the other absorbable materials are told apart. PGA is separated from polyglactin 910 by its monomer — a homopolymer of glycolide against a copolymer with lactide in it. Poliglecaprone is separated from both by a different comonomer and by being extruded as a monofilament rather than braided. Those are compositional differences, and they can be read straight off a specification. The fast-absorbing form of polyglactin 910 is not distinguished that way. Held against its standard counterpart, the composition line is identical.
What “rapide” names
What differs is the profile — how long the strand is intended to go on supporting tissue before it is absorbed — and that is introduced by how the material is treated in manufacture rather than by what it is made of. Rapide, rapid, fast and quick-absorbing all name that shortened profile, and they turn up in various combinations in material descriptions and in brand names across manufacturers. Dolphin Sutures supplies the fast-absorbing form as Petcryl 910 Fast.
Two things follow, and both are worth stating plainly. The first is that the adjective is descriptive rather than defined. It carries no quantity, and two products described by the same word are not thereby specified alike. The second is a limit on this article. The specific processing by which a given manufacturer shortens the profile is that manufacturer’s, and the profile it produces is stated in that product’s instructions for use. We are not going to describe a mechanism here that we cannot state against approved documentation, so the honest answer to “what makes it faster” is that the answer belongs to the product rather than to the material class.
Where the difference is written down
An absorbable suture loses tensile strength on one timeline and loses mass on a later one. The two are quoted separately in the instructions for use because they are separate events, and the distinction between the fast-absorbing and the standard form of polyglactin 910 is expressed entirely in those two sets of figures — and in nothing else on the specification.
That has a practical consequence. Figures established for standard polyglactin 910 do not carry over to the fast-absorbing form, and reading across from one to the other is the specific error the distinction exists to prevent. What makes the error easy is that everything else about the two materials genuinely is the same, so the transfer feels safe in a way it would not between, say, polyglactin 910 and PGA. They are two products with two specifications and two instructions for use, and each product’s own instructions for use is the controlled document — the one place where the difference between them is actually written down.
Key terminology
- Fast-absorbing (rapide)
- A descriptor for the shortened absorption profile of a material, not for its chemistry. Applied to polyglactin 910 it describes a strand whose composition is unchanged from the standard form.
- Polyglactin 910
- The generic material name for the glycolide/L-lactide copolymer, and the name that appears in the pharmacopoeias and the instructions for use for both the standard and the fast-absorbing form.
- Copolymer
- A polymer built from more than one monomer. Polyglactin 910 is a copolymer of glycolide and L-lactide, as distinct from a homopolymer such as PGA, built from a single monomer.
- Hydrolysis
- Breakdown of the polymer by reaction with water. It proceeds by loss of tensile strength first, then loss of mass, and is the absorption mechanism for all synthetic absorbable sutures.
- Tensile strength retention
- How much of its original strength the strand still holds at a given point in tissue. Product-specific and stated in the instructions for use, and one of the two figures in which the fast-absorbing form differs from the standard one.
- Absorption period (mass loss)
- How long the material takes to be cleared from the tissue. It follows strength loss and is a separate figure from strength retention, which is why the two are quoted separately.
Technical characteristics
- Composition
- Copolymer of 90% glycolide and 10% L-lactide — the same copolymer as standard polyglactin 910
- Construction
- Braided multifilament, coated
- Absorption mechanism
- Hydrolysis — loss of tensile strength precedes loss of mass
- What differs from standard polyglactin 910
- Processing, not composition. The two share the same copolymer in the same construction; the fast-absorbing form is treated to shorten the period over which the strand is intended to support tissue.
- How the shorter profile is achieved
- Product-specific. The composition is unchanged, so the difference is introduced in processing rather than in the polymer; the specific processing, and the profile it produces, belong to the product's documentation rather than to this page.
- Strength retention & absorption period
- Stated in the instructions for use supplied with the product — product-specific and not reproduced here.
- Indications
- Stated in the instructions for use. The material is intended for procedures needing only short-term tissue support; the IFU states the approved indications and the exclusions.
- Dolphin brand
- Petcryl 910 Fast
- Standards
- Manufactured to meet the USP and EP requirements for synthetic absorbable surgical sutures
How it compares
| Material | Composition | Construction | Absorption mechanism |
|---|---|---|---|
| Fast-absorbing polyglactin 910 | Synthetic (90% glycolide / 10% L-lactide copolymer) | Braided multifilament | Hydrolysis |
| Polyglactin 910 | Synthetic (90% glycolide / 10% L-lactide copolymer) | Braided multifilament | Hydrolysis |
| PGA | Synthetic (100% glycolide homopolymer) | Braided multifilament | Hydrolysis |
| Poliglecaprone | Synthetic (glycolide/caprolactone copolymer) | Monofilament | Hydrolysis |
| Catgut | Natural (purified collagen) | Twisted | Enzymatic (proteolytic) |
What clinicians weigh when selecting
The material name will not tell you which one you have
The relevant question is not which polymer you are holding, since both forms are the same copolymer, but which profile the product in your hand is specified to. That is a question for the instructions for use rather than for the material specification.
How long the tissue is intended to be supported
The trade-off is between a strand specified to support tissue over a shorter period and one specified over a longer one, read against the strength-retention profile in the product's instructions for use. Neither is the conservative option in the abstract; the question only resolves in the context of the case.
The adjective is descriptive, not defined
Rapide, rapid, fast and quick-absorbing appear in material descriptions and brand names across manufacturers. None of them carries a defined quantity, so two products described by the same word are not thereby specified alike.
Reading across from the standard form
Figures established for standard polyglactin 910 do not transfer to the fast-absorbing form, because those figures are the whole of the difference between them. The trap is that everything else about the two materials genuinely is the same, which makes the transfer feel safe.
Braid construction and the field
Capillarity is a property of multifilament construction and is unaffected by the absorption profile, so it applies to both forms alike. Whether it matters is a judgement about whether the field is clean, contaminated or infected — a question about the case, not about the material.
Regulatory status in your market
Approved indications differ by market. The instructions for use supplied with the product in your country is the governing document.
Frequently asked questions
Is fast-absorbing polyglactin 910 a different material from standard polyglactin 910?
No. Both are the same copolymer of 90% glycolide and 10% L-lactide, braided, coated and absorbed by hydrolysis. What differs is the period over which the strand is intended to support tissue. The difference is not a different polymer.
What makes it absorb faster?
The composition is unchanged, so the difference is introduced in how the material is processed rather than in what it is made of. The specific processing, and the profile that results from it, are product-specific and stated in the product's instructions for use. We do not describe a mechanism here that we cannot state against approved documentation.
How long does fast-absorbing polyglactin 910 take to absorb?
The absorption period is product-specific and is stated in the instructions for use supplied with the product. We do not publish absorption or strength-retention figures outside that document, because the IFU is the controlled source. That applies with particular force here, since the distinction between the two forms is expressed entirely in those figures.
Is rapide a brand name or a material name?
Neither, strictly. It is a descriptive term for the fast-absorbing form of polyglactin 910, and it appears as rapide, rapid, fast or quick-absorbing in various manufacturers' names. The generic material name is polyglactin 910 in both cases. Dolphin Sutures supplies the fast-absorbing form as Petcryl 910 Fast.
Can I apply the standard polyglactin 910 figures to the fast-absorbing form?
No. They are separate products with separate specifications and separate instructions for use, and the difference between them is exactly what those figures express. Reading across from one to the other is the error the distinction exists to prevent.
What is it intended for?
It is intended for procedures where tissue needs support only for a short period. What that covers, and what it excludes, is stated in the approved indications in the instructions for use supplied with the product in your market.
Instructions for use
The instructions for use supplied with the product is the controlled document for indications, contraindications, strength-retention and absorption data, warnings and precautions. That matters particularly on this page. The difference between the fast-absorbing and the standard form of polyglactin 910 is expressed entirely in figures that live in that document, so an article that omits them is not withholding detail — it is pointing at the only place the detail is controlled. Where this article and the instructions for use differ, the instructions for use govern. Approved indications vary by market.
Medical & regulatory notice
This article is general reference information about a suture material for healthcare professionals. It is not medical advice, not a recommendation for any procedure or patient, and not a substitute for the instructions for use supplied with the product or for clinical judgement. Product availability and approved indications vary by market. Dolphin Sutures manufactures surgical sutures; nothing here should be read as a claim of clinical benefit or of superiority over another material.