caa a22 4500 605459967 CHVBK 20210128100236.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00167-013-2711-9 doi (NATIONALLICENCE)springer-10.1007/s00167-013-2711-9 Mechanical testing of different knot types using high-performance suture material [Elektronische Daten] [M. Baums, Ch. Sachs, T. Kostuj, K. Schmidt-Horlohé, W. Schultz, H.-M. Klinger] Purpose: This laboratory study aimed to evaluate the loop security, knot security, cyclic loading resistance and load-to-failure rate of three different knot types with establishing a new experimental set-up. Additionally, the mode of failure of each knot was evaluated. Methods: With the use of nonabsorbable, braided polyethylene sutures, USP size No. 2 [Hi-Fi®; ConMed Linvatec], the arthroscopic knot types Dines, SMC as well as the surgeon's knot were tested using a material testing machine. The knots were tied openly as well as arthroscopically. The set-up enables testing of knot configurations while eliminating friction between knot loop and its suspension points. Including all test procedures, a total of 216 knots were tested. Results: All openly tied knot types and ten of each type of arthroscopically tied knots resisted against cyclic loading of 1,000 cycles. With subsequent load-to-failure testing, openly tied knot types achieved significantly higher values of tensile strength than arthroscopically tied knots. Regarding clinical failure, defined as an elongation of 3mm, Dines knot reached highest loop as well as knot security. Knot slippage was the most common failure mechanism at an elongation of 3mm, whereas suture breakage was evaluated most at an elongation of 6mm. Conclusions: The new experimental set-up confirms the loop security of arthroscopic knot types. Using a knot pusher clinically is a key factor to attain this as compared to openly hand-tied techniques. The Dines knot presented the highest reliability. It may provide a secure tissue healing during rehabilitation and consequently can be recommended for clinical application. Springer-Verlag Berlin Heidelberg, 2013 Suture knots nationallicence Biomechanics nationallicence Ultra-high molecular weight polyethylene nationallicence Cyclic loading nationallicence Security nationallicence Baums M. Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut Sachs Ch Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut Kostuj T. Department of Orthopaedics, Trauma Surgery and Rheumatology, Katholisches Krankenhaus Dortmund-West, Dortmund, Germany aut Schmidt-Horlohé K. Department of Trauma and Orthopaedic Surgery, Trauma Center Frankfurt/Main, Frankfurt, Germany aut Schultz W. Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut Klinger H.-M Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1351-1358 0942-2056 23:5<1351 2015 23 167 https://doi.org/10.1007/s00167-013-2711-9 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/s00167-013-2711-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baums M. Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut NATIONALLICENCE 700 1- Sachs Ch Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut NATIONALLICENCE 700 1- Kostuj T. Department of Orthopaedics, Trauma Surgery and Rheumatology, Katholisches Krankenhaus Dortmund-West, Dortmund, Germany aut NATIONALLICENCE 700 1- Schmidt-Horlohé K. Department of Trauma and Orthopaedic Surgery, Trauma Center Frankfurt/Main, Frankfurt, Germany aut NATIONALLICENCE 700 1- Schultz W. Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut NATIONALLICENCE 700 1- Klinger H.-M Department of Orthopaedic Surgery, University of Göttingen Medical Centre (UMG), Georg-August-University, Robert-Koch-Str. 40, 37099, Göttingen, Germany aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1351-1358 0942-2056 23:5<1351 2015 23 167