Open AccessImproving Strength and Quality of Epitendinous Repairs
Author(s) -
Ángel Fariñas,
Michael Stephanides,
Steven Schneeberger,
Alonda C. Pollins,
Nancy L. Cardwell,
Wesley P. Thayer
Publication year - 2018
Publication title -
hand
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.722
H-Index - 35
eISSN - 1558-9455
pISSN - 1558-9447
DOI - 10.1177/1558944718813608
Subject(s) - thread (computing) , medicine , statistical significance , statistical analysis , breaking strength , prolene , surgery , tendon , orthodontics , mathematics , composite material , materials science , statistics , computer science , operating system
Background: Epitendinous sutures not only join the 2 severed tendon edges but also supply strength and support to the repair. Multiple techniques have been described, but none of them include another thread of suture. This could potentially increase the strength of the repair without affecting gliding. Methods: Caprine tendons were harvested, transected, and sutured with 6-0 Prolene. Four groups were created: single thread running (SR), single thread locking (SL), double thread running (DR), and double thread locking (DL). An Instron 5542 was used to pull the repaired tendons apart, and the energy at the break was calculated (gf/mm). For gliding resistance, we harvested a human A2 pulley. A pre- and postrepair value was obtained, and a ratio was elaborated. A single-factor analysis of variance and independent sample t tests were performed. Results: The SR group had a mean energy at break of 9339.71 ± 1630.212 gf/mm; the SL group, 9629.96 ± 1476.45 gf/mm; and the DR group, 9600.221 ± 976.087 gf/mm, with no statistical significance. The DL group was significantly higher at 14 740.664 ± 2596.586 gf/mm ( P < .05). When comparing SR with DL for gliding, SR had less than half of the resistance than DL (0.018 ± 0.004 and 0.049 ± 0.015 N/mm, respectively), with statistical significance ( P < .05). Conclusion: Using a single suture thread for running epitendinous repair is no different than locking with a single thread or using an extra thread in a running fashion. Performing a double suture thread with a locking technique is significantly stronger than the previously mentioned repairs, with the disadvantage of more resistance at the pulley.