caa a22 4500 605460159 CHVBK 20210128100237.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s00167-014-2988-3 doi (NATIONALLICENCE)springer-10.1007/s00167-014-2988-3 Biomechanical evaluation of suture-tendon interface and tissue holding of three suture configurations in torn and degenerated versus intact human rotator cuffs [Elektronische Daten] [Matthias Wlk, Ashraf Abdelkafy, Michael Hexel, Christian Krasny, Nicolas Aigner, Roland Meizer, Franz Landsiedl] Purpose: The purpose of this study was to biomechanically evaluate suture-tendon interface and tissue holding of three sutures in torn and degenerated versus intact human rotator cuffs. Methods: Sixty-three human rotator cuff tendons were divided into torn degenerated group (TDG), n=21 and intact group (IG), n=42. Ultimate tension load (UTL) and cyclic loading were tested for three arthroscopic sutures: simple, horizontal, and massive cuff sutures (MCS). Results: Ultimate tension load was significantly higher (p<0.05) for the MCS (194±68N) in comparison with the simple (105±48N) and horizontal sutures (141±49N) in IG. In TDG, UTL was not significantly higher (n.s.) for MCS (118±49N), simple (79±30N), and horizontal sutures (107±28N) in comparison with IG. MCS (118±49N) showed no significantly superior UTL in comparison with the simple and horizontal sutures in the TDG. MCA elongation was 0.6±0.7mm in the IG and 1.3±0.7mm in the TDG, while horizontal suture elongation was 0.7±0.4mm in the IG and 1.3±0.5mm in the TDG. Simple suture elongation was 1.1±0.5mm in the IG and 1.6±0.7mm in the TDG. Conclusion: Human torn and degenerated rotator cuffs have poor tissue quality, significantly lower UTL and higher cyclic elongation in comparison with intact cuffs regardless of the type of suture used for repair, which invites the need for repair techniques that grasps greater tissue volume in addition to augmentation techniques. Clinical relevance: Clinicians better use repair techniques that grasp greater tissue volume (e.g. MCS, modified Mason-Allen cross bridge, double-row cross bridge, etc.) when repairing the torn and degenerated rotator cuffs. Springer-Verlag Berlin Heidelberg, 2014 Human rotator cuffs nationallicence Biomechanical testing nationallicence Ultimate tension load nationallicence Cyclic loading nationallicence Rotator cuff tears nationallicence Augmentation techniques nationallicence Wlk Matthias Orthopaedic Department, Herz-Jesu Hospital, Baumgasse 20A, 1030, Vienna, Austria aut Abdelkafy Ashraf Orthopaedic Surgery and Traumatology Department, Faculty of Medicine, Suez Canal University, Circular Road, 41522, Ismailia, Egypt aut Hexel Michael Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut Krasny Christian Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut Aigner Nicolas Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut Meizer Roland Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut Landsiedl Franz Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/2(2015-02-01), 386-392 0942-2056 23:2<386 2015 23 167 https://doi.org/10.1007/s00167-014-2988-3 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/s00167-014-2988-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wlk Matthias Orthopaedic Department, Herz-Jesu Hospital, Baumgasse 20A, 1030, Vienna, Austria aut NATIONALLICENCE 700 1- Abdelkafy Ashraf Orthopaedic Surgery and Traumatology Department, Faculty of Medicine, Suez Canal University, Circular Road, 41522, Ismailia, Egypt aut NATIONALLICENCE 700 1- Hexel Michael Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut NATIONALLICENCE 700 1- Krasny Christian Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut NATIONALLICENCE 700 1- Aigner Nicolas Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut NATIONALLICENCE 700 1- Meizer Roland Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut NATIONALLICENCE 700 1- Landsiedl Franz Department 1, Speising Orthopaedic Hospital, Speisingerstr. 109, 1130, Vienna, Austria aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/2(2015-02-01), 386-392 0942-2056 23:2<386 2015 23 167