Absorbable Synthetic Mesh
Absorbable synthetic meshes provide temporary reinforcement while tissue heals. Polymer loss, declining mesh strength and the strength of the repaired tissue are different measurements. Complete resorption does not guarantee freedom from recurrence, scarring, pain, infection, erosion or fistula.[1][2]
This page covers materials and labeling. Fully absorbable mesh should not be substituted for a permanent sling or prolapse implant merely because both are called surgical mesh.
Materials and Support Duration
| Material / example | What the evidence or product information establishes |
|---|---|
| Polyglactin 910 / rapidly absorbable polymers | Provide short-lived reinforcement. An older abdominal-wall rat study demonstrated early loss of support and repair dilatation with polyglactin mesh; it does not establish that every absorbable reconstruction fails.[3] |
| P4HB / Phasix | Fully resorbable monofilament mesh; manufacturer information describes degradation over approximately 12–18 months. This is not a promise of unchanged tensile strength throughout that interval.[1] |
| PGA:TMC / GORE BIO-A | A scaffold containing 67% polyglycolic acid and 33% trimethylene carbonate, with an approximately 6–7-month resorption period. It is not intended where permanent mesh support is required.[2] |
| Other slow-resorbing polymers or dual-fiber constructs | Chemistry and architecture differ substantially. Use the exact product's strength-retention and resorption data rather than assigning a class-wide support duration. |
| Partially absorbable PP constructs | The absorbable component disappears but PP remains permanently. See Coated / Hybrid Mesh. |
The desired gradual transfer of load to healing tissue is a design goal, not proof of durable pelvic support. Rat/rabbit comparisons of Phasix and BIO-A measured inflammation, repair thickness, strength and bacterial colonization under experimental conditions; they do not demonstrate lower clinical pelvic infection rates.[4]
Product Safety Boundaries
Phasix should not be used where permanent wound or organ support from mesh is required. Its US safety information prohibits direct contact with bowel or viscera, advises avoidance with known tetracycline or kanamycin allergy, and notes that unresolved infection may require removal. The manufacturer's CE-marked product information explicitly contraindicates POP repair and SUI treatment. This jurisdiction-specific wording should not be erased by a generic soft-tissue indication.[1]
GORE BIO-A is indicated for reinforcement of soft tissue, including hernia-related applications; its product information contraindicates use requiring permanent support and reconstruction of cardiovascular defects. Resorbability is not an infection-proofing or urinary-contact claim.[2]
A product cleared for abdominal-wall reinforcement has not thereby established benefit for a vaginal prolapse repair, midurethral sling, bladder patch or urethral replacement. FDA's 2019 transvaginal POP order was not limited to permanent PP: the affected products included Xenform, a biologic matrix.[5]
Pelvic Organ Prolapse Evidence
The 2024 Cochrane review did not establish a benefit of absorbable mesh over native-tissue vaginal repair. Evidence for individual outcomes came from a small trial (54–66 assessed women) with wide confidence intervals; lack of a statistically detectable difference is not proof of equivalent durability. The review does not support routine absorbable-mesh augmentation for vaginal POP.[6]
A 2024 sheep study implanted P4HB or PP in the posterior vaginal wall. Exposures at 12 months occurred in 3/8 P4HB and 4/8 PP explants; at 24 months they occurred in 0/8 and 4/8, respectively. P4HB had fully resorbed with maintained explant stiffness at the later endpoint. These separate animal groups do not show that early human exposures resolve, or establish a safe clinical replacement for PP.[7]
Urinary Exposure: Keep Materials and Models Separate
Urine can alter material performance, but findings depend on the polymer, construction, pH, organism and test conditions. An older suture immersion experiment found rapid PDS and PGA strength loss under certain conditions. A different experiment using polyglactin mesh found prolonged durability in acidic infected urine. These studies do not justify a universal claim that every absorbable mesh or PDS suture loses all strength after three days in any urinary reconstruction.[8][9]
Do not prescribe urinary acidification, alkalinization or tolerated infection to manipulate mesh degradation on the basis of these bench findings. For an anastomosis, choose a clinically appropriate suture and technique; for an implant exposed to urine, establish product-specific compatibility and the reconstructive plan.
Investigational GU Reconstruction
Cell-seeded polymer scaffolds for bladder reconstruction and bioengineered urethral replacements remain research approaches. A canine bladder study demonstrated differences between cell-seeded and unseeded constructs, but this is not evidence that an off-the-shelf absorbable hernia mesh can replace bowel augmentation or reconstruct a human bladder wall.[10]
When mesh avoidance is a priority, discuss established native-tissue operations or autologous fascia as appropriate to the indication. Material innovation should be evaluated against meaningful symptom, recurrence, reoperation and long-term safety outcomes.
See also: Polypropylene Mesh, Coated / Hybrid Mesh.
References
1. BD. Phasix Mesh: US product safety information; US and CE-marked safety summaries in BD-135707, August 2024. Resorption interval is not a fixed strength-retention interval.
2. Gore Medical. GORE BIO-A Tissue Reinforcement: product description, indications and contraindications. Accessed September 2026.
3. Klinge U, Schumpelick V, Klosterhalfen B. Functional Assessment and Tissue Response of Short- and Long-Term Absorbable Surgical Meshes. Biomaterials. 2001;22(11):1415-1424. doi:10.1016/s0142-9612(00)00299-4
4. Stoikes NFN, Scott JR, Badhwar A, Deeken CR, Voeller GR. Characterization of Host Response, Resorption, and Strength Properties, and Performance in the Presence of Bacteria for Fully Absorbable Biomaterials for Soft Tissue Repair. Hernia. 2017;21(5):771-782. doi:10.1007/s10029-017-1638-3
5. US Food and Drug Administration. FDA Activities: Urogynecologic Surgical Mesh. Includes April 2024 SUI mini-sling review and 2019 POP order.
6. Yeung E, Baessler K, Christmann-Schmid C, et al. Transvaginal Mesh or Grafts or Native Tissue Repair for Vaginal Prolapse. Cochrane Database of Systematic Reviews. 2024;3:CD012079. doi:10.1002/14651858.CD012079.pub2
7. Guler Z, Kaestner LA, Vodegel E, et al. Two-Year Preclinical Evaluation of Long-Term Absorbable Poly-4-Hydroxybutyrate Scaffold for Surgical Correction of Pelvic Organ Prolapse. International Urogynecology Journal. 2024;35(3):713-722. doi:10.1007/s00192-023-05720-0
8. el-Mahrouky A, McElhaney J, Bartone FF, King L. In Vitro Comparison of the Properties of Polydioxanone, Polyglycolic Acid and Catgut Sutures in Sterile and Infected Urine. The Journal of Urology. 1987;138(4):913-915. doi:10.1016/s0022-5347(17)43415-x
9. Best CD, Lowe R, Shu J, Terris MK. Comparison of the Breaking Strength of Polyglactin Mesh in Urine, Serum, and Cell Culture Media. Urology. 1999;53(6):1239-1244. doi:10.1016/s0090-4295(99)00056-4
10. Jayo MJ, Jain D, Wagner BJ, Bertram TA. Early Cellular and Stromal Responses in Regeneration Versus Repair of a Mammalian Bladder Using Autologous Cell and Biodegradable Scaffold Technologies. The Journal of Urology. 2008;180(1):392-397. doi:10.1016/j.juro.2008.02.039