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05:22
Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
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Is suture comparable to wire for cerclage fixation? A biomechanical analysis
Scott E Westberg1, Yves P Acklin1, Siva Hoxha2
1Division of Orthopaedic Surgery, University of Alberta, Edmonton, AB, Canada.
Shoulder & Elbow
|June 19, 2019
Summary
High-performance sutures like Ethibond and FiberWire demonstrate superior strength and durability compared to traditional cerclage wire in biomechanical testing. These advanced sutures offer a promising alternative for bone fixation, though clinical application requires further study.
Area of Science:
- Orthopaedic Surgery
- Biomedical Engineering
- Materials Science
Background:
- Cerclage wire is the standard for bone fixation.
- Modern suture technology offers potential for improved bone fixation.
- This study compares modern sutures to cerclage wire.
Purpose of the Study:
- To compare the strength and durability of modern suture materials against monofilament wire for cerclage fixation.
- To evaluate biomechanical performance under cyclic and quasi-static loading.
Main Methods:
- Three suture materials (FiberWire, Ultrabraid, Ethibond) and monofilament wire were tested.
- Knots included Surgeon's Knot, Nice Knot, and Modified Nice Knot.
- Samples underwent cyclic loading and load-to-failure testing to assess displacement and ultimate strength.
Main Results:
- Ethibond showed significantly less displacement than wire under cyclic loading.
- Ethibond and FiberWire withstood significantly higher loads to failure than wire.
- Knot type did not significantly impact biomechanical results.
Conclusions:
- High-performance sutures offer superior biomechanical performance compared to monofilament wire for cerclage.
- Suture material is a key factor in cerclage security, not knot choice.
- Further ex-vivo and clinical studies are needed to confirm suture cerclage as a viable alternative to wire cerclage.
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