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Related Experiment Video

Updated: May 5, 2026

Polytetrafluoroethylene PTFE as a Suture Material in Tendon Surgery

Polytetrafluoroethylene PTFE as a Suture Material in Tendon Surgery

Published on: October 6, 2022

Grasping Thin Polypropylene Sutures Even With Less Traumatic Instruments May Decrease Their Tensile Strength.

Damir Vakhitov^1,2, Olli Tanhuanpää³, Markus Kakkonen³

¹Vascular Centre, Tampere University Hospital, Tampere, Finland.

EJVES Vascular Forum

|May 4, 2026

Summary

This summary is machine-generated.

Pinching polypropylene sutures (PS) with a Jacobson Micro Needle Holder significantly reduced the tensile strength of 6-0 and 7-0 sutures. DeBakey forceps caused less damage, indicating instrument choice is crucial for suture integrity.

Keywords:

Anastomotic pseudoaneurysm False aneurysm Pinch force Polypropylene suture Suture rupture Suture tensile strength

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Area of Science:

Vascular Surgery
Biomaterials Science
Surgical Instrumentation

Background:

Anastomotic false aneurysms can arise from damage to polypropylene sutures (PS).
The impact of handling with modern vascular instruments on PS tensile strength (TS) requires investigation.

Purpose of the Study:

To evaluate the effect of pinching polypropylene sutures with specific vascular instruments on their tensile strength.
To compare the damage caused by Jacobson Micro Needle Holder (NH) versus DeBakey atraumatic tissue forceps (TF).

Main Methods:

Tested various sizes of polypropylene sutures (3-0 to 7-0).
Compressed sutures using NH and TF with standardized pressure.
Assessed tensile strength via a traction device and analyzed surface damage using optical tomography.

Main Results:

A statistically significant decrease in TS was observed for 6-0 and 7-0 PS after compression with NH (p=0.003 and p<0.001, respectively).
Optical tomography revealed surface deformations and cortex damage, with more extensive damage from NH compression.
Damage severity correlated with decreasing suture diameter.

Conclusions:

Pinching polypropylene sutures can cause structural deformation and superficial damage.
Compression with NH significantly reduces the tensile strength of smaller diameter sutures (6-0 and 7-0).
Instrument selection is critical to maintain suture integrity during vascular procedures.