caa a22 4500 605459908 CHVBK 20210128100236.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00167-014-2976-7 doi (NATIONALLICENCE)springer-10.1007/s00167-014-2976-7 Novel single-loop and double-loop knot stitch in comparison with the modified Mason-Allen stitch for rotator cuff repair [Elektronische Daten] [Stephan Frosch, Gottfried Buchhorn, Anja Hoffmann, Peter Balcarek, Jan Schüttrumpf, Florian August, Klaus Stürmer, Hans Walde, Tim Walde] Purpose: In rotator cuff repair, strong and long-lasting suturing techniques that do not require additional implants are needed. This study examines the ultimate load to failure and the Young's modulus at the suture-tendon interface for a novel single-loop knot stitch and double-loop knot stitch. These values are compared to those of the modified Mason-Allen stitch. Methods: Twenty-four infraspinatus muscles with tendons were dissected from porcine shoulders (twelve Goettingen minipigs). The preparations were randomly allocated to three groups of eight samples. Load-to-failure testing of the single-loop knot stitch, the double-loop knot stitch and the mMAS were performed using a Zwick 1446 universal testing machine (Zwick-Roell AG, Ulm, Germany). Results: The highest ultimate load to failure for the three techniques occurred with the double-loop knot stitch with a median value of 382.2N (range 291.8-454.2N). These values were significantly higher than those of the single-loop knot stitch, which had a median value of 259.5N (range 139.6-366.3N) and the modified Mason-Allen stitch, which had a median value of 309.3N (range 84.55-382.9N). The values of the single-loop knot stitch and the modified Mason-Allen stitch did not differ significantly. Regarding the Young's modulus, no significant differences were found between the double-loop knot stitch with a median value of 496.02N/mm² (range 400.4-572.6N/mm²) and the modified Mason-Allen stitch with 498.5N/mm² (range 375.5-749.2N/mm²) with respect to the stiffness of the suture-tendon complex. The median value for the Young's modulus of the single-loop knot stitch of 392.1N/mm² (range 285.7-510.6N/mm²) was significantly lower than those of the double-loop knot stitch and modified Mason-Allen stitch. Conclusion: This in vitro animal study demonstrated that both the single-loop knot stitch and the double-loop knot stitch have excellent ultimate load-to-failure properties when used for rotator cuff repair. The introduced single-loop knot stitch and double-loop knot stitch offer an alternative to other common used stitch techniques in rotator cuff repair. Springer-Verlag Berlin Heidelberg, 2014 Rotator cuff repair nationallicence Modified Mason-Allen stitch nationallicence Biomechanical study nationallicence Ultimate load to failure nationallicence Shoulder nationallicence Stitch strength nationallicence Frosch Stephan Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Buchhorn Gottfried Department of Orthopedics, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Hoffmann Anja Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Balcarek Peter Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Schüttrumpf Jan Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut August Florian Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Stürmer Klaus Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Walde Hans Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Walde Tim Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1552-1558 0942-2056 23:5<1552 2015 23 167 https://doi.org/10.1007/s00167-014-2976-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-2976-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Frosch Stephan Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Buchhorn Gottfried Department of Orthopedics, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Hoffmann Anja Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Balcarek Peter Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Schüttrumpf Jan Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- August Florian Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Stürmer Klaus Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Walde Hans Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 700 1- Walde Tim Department of Trauma Surgery, Plastic and Reconstructive Surgery, University Medicine Göttingen, Robert Koch Straße 40, 37075, Göttingen, Germany aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1552-1558 0942-2056 23:5<1552 2015 23 167