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High structural stability of textile implants prevents pore collapse and preserves effective porosity at strain.

Klinge U, Otto J, Mühl T - Biomed Res Int (2015)

Bottom Line: The latter mainly is affected by the size of the pores, whereas only sufficiently large pores are effective in preventing a complete scar entrapment.Comparing two different sling implants (TVT and SIS), which are used for the treatment of urinary incontinence, we can demonstrate that the measurement of the effective porosity reveals considerable differences in the textile construction.Furthermore the changes of porosity after application of a tensile load can indicate a structural instability, favouring pore collapse at stress and questioning the use for purposes that are not "tension-free."

View Article: PubMed Central - PubMed

Affiliation: Department for General, Visceral and Transplant Surgery, the University Hospital of the RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany.

ABSTRACT
Reinforcement of tissues by use of textiles is encouraged by the reduced rate of recurrent tissue dehiscence but for the price of an inflammatory and fibrotic tissue reaction to the implant. The latter mainly is affected by the size of the pores, whereas only sufficiently large pores are effective in preventing a complete scar entrapment. Comparing two different sling implants (TVT and SIS), which are used for the treatment of urinary incontinence, we can demonstrate that the measurement of the effective porosity reveals considerable differences in the textile construction. Furthermore the changes of porosity after application of a tensile load can indicate a structural instability, favouring pore collapse at stress and questioning the use for purposes that are not "tension-free."

No MeSH data available.


Related in: MedlinePlus

Elongation of the TVT at mechanical load as percent of original length (a) with macroscopic image (b).
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Related In: Results  -  Collection


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fig4: Elongation of the TVT at mechanical load as percent of original length (a) with macroscopic image (b).

Mentions: Measurements with application of tensile forces of 0.9 to 8.9 N/cm at the TVT sling with the width of 11 mm led to a reduction of the textile porosity to 29.4% at a load of 8.9 N/cm, whereas the effective porosity always was 0%. This corresponds to an elongation of up to 32.5% due to deformation of pore geometry (Figure 4).


High structural stability of textile implants prevents pore collapse and preserves effective porosity at strain.

Klinge U, Otto J, Mühl T - Biomed Res Int (2015)

Elongation of the TVT at mechanical load as percent of original length (a) with macroscopic image (b).
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4417993&req=5

fig4: Elongation of the TVT at mechanical load as percent of original length (a) with macroscopic image (b).
Mentions: Measurements with application of tensile forces of 0.9 to 8.9 N/cm at the TVT sling with the width of 11 mm led to a reduction of the textile porosity to 29.4% at a load of 8.9 N/cm, whereas the effective porosity always was 0%. This corresponds to an elongation of up to 32.5% due to deformation of pore geometry (Figure 4).

Bottom Line: The latter mainly is affected by the size of the pores, whereas only sufficiently large pores are effective in preventing a complete scar entrapment.Comparing two different sling implants (TVT and SIS), which are used for the treatment of urinary incontinence, we can demonstrate that the measurement of the effective porosity reveals considerable differences in the textile construction.Furthermore the changes of porosity after application of a tensile load can indicate a structural instability, favouring pore collapse at stress and questioning the use for purposes that are not "tension-free."

View Article: PubMed Central - PubMed

Affiliation: Department for General, Visceral and Transplant Surgery, the University Hospital of the RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany.

ABSTRACT
Reinforcement of tissues by use of textiles is encouraged by the reduced rate of recurrent tissue dehiscence but for the price of an inflammatory and fibrotic tissue reaction to the implant. The latter mainly is affected by the size of the pores, whereas only sufficiently large pores are effective in preventing a complete scar entrapment. Comparing two different sling implants (TVT and SIS), which are used for the treatment of urinary incontinence, we can demonstrate that the measurement of the effective porosity reveals considerable differences in the textile construction. Furthermore the changes of porosity after application of a tensile load can indicate a structural instability, favouring pore collapse at stress and questioning the use for purposes that are not "tension-free."

No MeSH data available.


Related in: MedlinePlus