Strength of side-to-side and step-cut repairs in tendon transfers: biomechanical testing of porcine flexor tendons
| Autor: | Anders Mølster, Irene O Moldestad, Eivind Strandenes, Paul Johan Høl, Peter Ellison, Nils Roar Gjerdet |
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| Rok vydání: | 2020 |
| Předmět: |
Swine
medicine.medical_treatment Tendon Transfer 030230 surgery Biomechanical testing Tendons 03 medical and health sciences 0302 clinical medicine Tendon transfer Tensile Strength Ultimate tensile strength medicine Animals Orthodontics 030222 orthopedics Sutures Flexor tendon business.industry Suture Techniques Biomechanics Stiffness musculoskeletal system Biomechanical Phenomena Tendon medicine.anatomical_structure Surgery medicine.symptom business |
| Zdroj: | Journal of Hand Surgery (European Volume) |
| ISSN: | 2043-6289 1753-1934 |
| DOI: | 10.1177/1753193420939068 |
| Popis: | The aim of the study was to compare side-to-side with step-cut repairs to determine how much of the width it is possible to remove and still keep the repair strong enough to start active mobilization. Porcine flexor tendons were used to create side-to-side, one-third step-cut and half step-cut repairs. There were 15 repairs in each group. The tensile properties of the constructs were measured in a biomechanical testing machine. All repairs failed by the sutures splitting the tendon longitudinally. The maximum load and stiffness were highest in the side-to-side group. Our findings suggest that the half step-cut repair can withstand the forces exerted during active unrestricted movement of the digits in tendons of this size. The advantage of the step-cut repair is reduced bulkiness and less friction, which might compensate for the difference in strength. |
| Databáze: | OpenAIRE |
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