Transvaginal Mesh Implants: New Study Reveals Degrading Material, Fueling Calls for Safer Alternatives

A new study published in the Journal of the Mechanical Behaviour of Biomedical Materials has shed light on the potential dangers of transvaginal mesh (TVM) implants, revealing that the material degrades rapidly within the body, leading to serious complications for some women.

Degradation of Polypropylene Mesh

TVM implants, often made from polypropylene, are designed to treat pelvic organ prolapse and stress urinary incontinence. However, they have been linked to a range of debilitating side effects, including infection, pelvic pain, urinary problems, pain during sex, and incontinence.

The Sheffield University study, conducted on sheep models with similar pelvic anatomy to women, found that polypropylene mesh fibers began to degrade within 60 days of implantation. This degradation resulted in the mesh becoming stiffer and showing signs of oxidation, a process that worsened over time.

Calls for Safer Materials

Emeritus Professor Sheila MacNeil, biomaterials and tissue engineering expert at the University of Sheffield, emphasized the importance of this research:

“This research provides objective physical evidence that this material does not cope well with implantation in the pelvis. This is crucial because it is imperative that we develop new and better materials for the many thousands of patients suffering from stress urinary incontinence and pelvic organ prolapse.”

“We now know how to critically assess any issues in new materials before they are implanted in women. It is vital to have tests to detect potential failures in materials, rather than trialling untested materials in patients.”

The researchers suggest that polypropylene mesh, commonly used in hernia repair, was mistakenly assumed to be suitable for pelvic floor procedures. They stress the urgent need for safer alternatives to address pelvic organ prolapse.

Victims Seek Justice and Change

The study findings come after a group settlement in England, where over 100 women with complications from vaginal mesh implants received payouts.

Dr Nicholas Farr, lead researcher at the University of Sheffield, underscores the need for action:

“Our results provide strong evidence of the instability of polypropylene and offer new insights into the mechanisms that contribute to its degradation within the body. While the recent monetary compensation for affected patients is undoubtedly a welcome development, there remains an urgent clinical need for safer materials to address pelvic organ prolapse.”

“It is my hope that the insights from this study will be recognised by current, and future, mesh manufacturers and will contribute to the ongoing development of safer alternatives.”

Kath Sansom, founder of the support group Sling The Mesh, which represents thousands of women worldwide, voiced her concerns:

“This study confirms what many of us have suspected – that the mesh becomes unstable, causing harm that is irreversible. It’s critical that this new research is used to drive immediate changes in medical practice – including the need for surgeons to re-learn traditional skills using trusted native tissue methods to fix prolapse and stress incontinence – without plastic mesh.”

“Patients deserve better. We must prevent further suffering.”

Regulatory Response

The Medicines and Healthcare products Regulatory Agency (MHRA) acknowledged the concerns and stated that surgical mesh use for pelvic organ prolapse and stress urinary incontinence has been restricted since 2018. They emphasize that exceptions are made only when mesh is deemed the only suitable treatment option after careful consideration of risks and benefits.

What You Can Do

If you have concerns about TVM implants or potential complications, speak to your doctor. Stay informed about the latest research and advocate for safer alternatives to transvaginal mesh.