Comparison of different suture techniques for Achilles tendon repair in rat model using collagen scaffolds

• Autorzy: Gabler C. , Gierschner S. , Tischer T. , Bader R.

Identyfikatory

DOI

10.5277/ABB-01084-2018-02

• Języki publikacji: EN

Abstrakty

EN

Tendon injury is an increasing problem in medicine due to aging of the population and increased activity demands. Many rodent animal models are used in order to evaluate tendon reconstruction. Although tendon reruptures are a known problem, the outcomes of tendon repair in animal models are rarely discussed in the literature. The goal of the present experimental study was to compare the primary fixation stability of three suture techniques for repair of Achilles tendon defects in a rat model using a collagen scaffold. Methods: Cadaveric left hind limbs of Sprague-Dawley rats were prepared with an Achilles tendon defect of 3 mm and rejoined using a collagen scaffold. Three suture configurations (simple, simple stitch with additional framing suture, and modified Mason–Allen stitch; n = 5 each) underwent tensile testing until complete failure was observed. Results: Under a load of a mean value of 6.6 N, the failure load of simple stitches was the significantly lowest ( p < 0.01). Both, modified Mason–Allen stitches and simple stitches with additional framing suture showed a mean failure load of more than 14 N. Regardless of the suture technique, most of the samples showed failure of tendon due to suture tear-out. The suture material as well as the scaffold remained mostly intact. Conclusions: Although simple end-toend suture techniques are common in the literature, stitches with more suture strands should be preferred. Using techniques like an additional framing suture or modified Mason–Allen stitch, maximum failure load can be doubled and the risk of tendon rerupture may be decreased in vivo.

Słowa kluczowe

EN

tendon repair; suture techniques; scaffolds; animal model

PL

ścięgno; model zwierzęcy; biomechanika

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2018
• Tom: Vol. 20, no. 2
• Strony: 73--77
• Opis fizyczny: Bibliogr. 25 poz., rys., tab., wykr.

Twórcy

autor

Gabler C.

• University Medicine Rostock, Department of Orthopedics, Biomechanics and Implant Technology Laboratory, Rostock, Germany

autor

Gierschner S.

• University Medicine Rostock, Department of Orthopedics, Biomechanics and Implant Technology Laboratory, Rostock, Germany

autor

Tischer T.

• University Medicine Rostock, Department of Orthopedics, Biomechanics and Implant Technology Laboratory, Rostock, Germany

autor

Bader R.

• University Medicine Rostock, Department of Orthopedics, Biomechanics and Implant Technology Laboratory, Rostock, Germany

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).