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Biomechanical performance of a braided absorbable suture.
B C Faulkner1, A J Gear, T B Hellewell
1Department of Plastic Surgery, University of Virginia School of Medicine, Charlottesville 22909, USA.
Journal of Long-Term Effects of Medical Implants
|December 9, 1995
Summary
Lactomer sutures, made from lactide and glycolide copolymers, show superior handling and knot security compared to Polyglactin 910 sutures. These findings highlight Lactomer
Area of Science:
- Biomaterials Science
- Surgical Technology
Background:
- Sutures are essential surgical tools for wound closure.
- Lactomer and Polyglactin 910 are absorbable sutures composed of lactide and glycolide copolymers.
- Evaluating biomechanical properties is crucial for surgical performance.
Purpose of the Study:
- To compare the biomechanical performance of Lactomer sutures against Polyglactin 910 sutures.
- To assess handling characteristics, knot holding force, and knot security.
Main Methods:
- Biomechanical performance tests were conducted on Lactomer and Polyglactin 910 sutures.
- Tests included evaluation of handling, knot holding force, and knot rundown forces.
- Knot security was assessed by observing failure modes (breakage vs. slippage).
Main Results:
- Lactomer sutures demonstrated superior handling characteristics compared to Polyglactin 910.
- Under comparable conditions, Lactomer sutures exhibited significantly higher knot holding force.
- Lower knot rundown forces with Lactomer sutures facilitated secure knot formation, failing by breakage.
Conclusions:
- Lactomer sutures offer enhanced biomechanical performance over Polyglactin 910.
- Superior handling and knot security make Lactomer a promising alternative for surgical applications.
- The failure mode of Lactomer sutures (breakage) indicates greater security than slippage.