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Surgical sutures: coincidence or experience?

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Abstract

Background

Knotting sutures by hand is still important in daily surgical routine, especially laparotomy closure. The expectation is that hand suturing relies on the experience and subjective estimation of the surgeon. The aim of this study was to investigate whether hand suturing tension is reproducible and if surgical experience influences reproducibility.

Methods

At the annual Congress of the German Association of Surgery, 118 surgeons performed repetitive sutures on a standardized and certified measuring device simulating the final knot of a fascial closure. Each surgeon was asked to perform five identical single knots in a row using the suture tension that each considered ideal. Tension during knotting was measured in Newtons. The surgeons were divided into five subgroups based on surgical experience: group 1, <1 year; group 2, 2–5 years; group 3, 6–10 years; group 4, 11–20 years; and group 5, >30 years.

Results

The tension measured at the end of knotting ranged from 0.19 to 10 N. The mean suture tension at endpoint was 3.88 N for group 1 and slightly higher in the other groups, but not significantly different. The overall mean suture tension was 5.43 N and did not correlate with surgical experience. Suture tension was not reproducible.

Conclusion

Sequential suture tension varied, even among experienced surgeons. The ideal tissue-dependent suture tension has not been defined. Measured values appear to be intuitive, relying on individual feeling rather than the level of experience.

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Acknowledgement

This work was supported by Ethicon, Johnson & Johnson, Norderstedt, Germany.

Authors’ contributions

KTvT, JG and MB contributed to the study conception and design. KTvT, NB, AL and CDK contributed to the acquisition of data. KTvT, JG, NB, AL, CDK, UPN, MJ and MB contributed to the analysis and interpretation of data. KTvT, JG, NB, AL, CDK, UPN, MJ and MB contributed to the drafting of manuscript. KTvT, JG, NB, AL, CDK, UPN, MJ and MB contributed to the critical revision of manuscript.

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Correspondence to K.-T. von Trotha.

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All authors declare that they have no conflict of interest.

Funding

The measuring device as well as the sutures were provided by Ethicon, Johnson & Johnson, Norderstedt, Germany, no further funding was received.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Human and animal rights

This article does not contain any studies with animals performed by any of the authors.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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von Trotha, KT., Grommes, J., Butz, N. et al. Surgical sutures: coincidence or experience?. Hernia 21, 505–508 (2017). https://doi.org/10.1007/s10029-017-1597-8

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  • DOI: https://doi.org/10.1007/s10029-017-1597-8

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