gms | German Medical Science

14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

17.06. - 21.06.2019, Berlin

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Comparison of healing strengths of flexor tendons repaired with two multi-strand configurations in a chicken model

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  • presenting/speaker Qianqian Yang - Affiliated Hospital of Nantong University, Nantong, China
  • Shuguo Xing - Affiliated Hospital of Nantong University, Nantong, China
  • Youlang Zhou - Affiliated Hospital of Nantong University, Nantong, China

International Federation of Societies for Surgery of the Hand. International Federation of Societies for Hand Therapy. 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT). Berlin, 17.-21.06.2019. Düsseldorf: German Medical Science GMS Publishing House; 2020. DocIFSSH19-689

doi: 10.3205/19ifssh0991, urn:nbn:de:0183-19ifssh09918

Published: February 6, 2020

© 2020 Yang et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Objectives/Interrogation: To investigate the tendon healing strengths between two multi-strand configurations in a chicken model.

Methods: Fifty-six chicken flexor tendons were repaired with two four-strand configurations: a four-strand repair consisting of a two-strand core Kessler suture with an additional circle loop repair (group 1) and a four-strand core Kessler suture repair with three separate stitches of peripheral suture (group 2). The healing strengths of the repaired tendons were measured at weeks 2, 3 and 4 after repair and were analyzed statistically. The data was analyzed with two-way analysis of variance. Tukey test was used for comparison of the means of the data between the different repair methods groups at the same time-points and between different two points. We set the level of significance at p<0.05.

Results and Conclusions: At weeks 2, tendons in two groups showed the similar mean ultimate strengths (6.5±1.6 N in group 1 and 7.0±2.3 N in group 2). At weeks 3, the ultimate strength of tendons in group 2 (17.1±4.9 N) was statistically different from that in group 1 (12.2±3.1 N) (p=0.033). At weeks 4, the healing strengths of tendons in group 2 (64.3±19.6 N) was significantly higher than that in group 1 (40.7±24.7 N) (p=0.039). In group 1, the means healing strengths of the tendons increased from 6.5 N at weeks 2 to 12.2 N at weeks 3 and to 40.7 N at weeks 4; the percent increase was 86% from weeks 2 to 3 and 234% from weeks 3 to 4, respectively. In group 2, the percent increases in the strengths were much greater (144% increase from weeks 2 to 3, and 276% from weeks 3 to 4).

The four strength repairs with three separate stitches of peripheral suture produce greater healing strengths of the repaired tendon than that of a repair of two-strand repair with one circle loop suture.