25dkou555 10.3205/25dkou555 urn:nbn:de:0183-25dkou5557 Meeting Abstract Hinz Hinz Maximilian M

Steadman Philippon Research Institute, Vail, USA Department for Shoulder and Elbow Surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland

author Hollenbeck Hollenbeck Justin F. M. JFM

Steadman Philippon Research Institute, Vail, USA

author Kruckeberg Kruckeberg Bradley M. BM

Steadman Philippon Research Institute, Vail, USA The Steadman Clinic, Vail, USA

author Sidrak Sidrak Jason P. JP

Steadman Philippon Research Institute, Vail, USA

author Cortes Cortes Natalie N

Steadman Philippon Research Institute, Vail, USA

author Buchalter Buchalter Wyatt W

Steadman Philippon Research Institute, Vail, USA

author Provencher Provencher Matthew T. MT

Steadman Philippon Research Institute, Vail, USA The Steadman Clinic, Vail, USA The Steadman Clinic, Vail, USA

author Millett Millett Peter J. PJ

Steadman Philippon Research Institute, Vail, USA The Steadman Clinic, Vail, USA

author German Medical Science GMS Publishing House

Düsseldorf

610 20251031 engl This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). M0634 555 Deutsche Gesellschaft für Orthopädie und Unfallchirurgie Deutsche Gesellschaft für Orthopädie und Orthopädische Chirurgie Deutsche Gesellschaft für Unfallchirurgie Berufsverband für Orthopädie und Unfallchirurgie Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2025) Abstracts | Schulter Instabilität Berlin 20251028 20251031 AB88-4683 TextObjectives and questions: To compare stiffness and elongation between Bankart repair with vs. without an additional posteroinferior (PI) anchor as well as with vs. without suture retensioning.Material and methods: Ten fresh-frozen cadaveric shoulders (age: 61.3 ± 5.1 years, sex: 90.0% male) were tested in the present study. After preconditioning, Bankart lesions were created and each shoulder underwent four different repair states using knotless soft body anchors: 1) 3-anchor Bankart repair (5:30, 4:30 and 3:30 o’clock), 2) 4-anchor Bankart repair with a PI anchor (6:30 o’clock), 3) 3-anchor Bankart repair with suture retensioning and 4) 4-anchor Bankart repair with a PI anchor and suture retensioning. Repair sutures were passed through 1 cm of capsulolabral tissue and tensioned to 50 N. Retensioning of each suture was performed to 50 N twice. Stiffness and elongation were evaluated before and after 100 cycles of cyclic loading to 25 N.Results: Stiffness after cyclic loading was highest in the 4-anchor Bankart repair with suture retensioning and was significantly stiffer than the 3-anchor and the 4-anchor Bankart repair (P = .013 and P = .040, respectively). It was not significantly stiffer than the 3-anchor Bankart repair with suture retensioning (P > .127). Elongation after cyclic loading was lowest in the 4-anchor Bankart repair with suture retensioning and was significantly lower than the 3-anchor and 4-anchor Bankart repair (P = .042 and P = .020, respectively). It was not significantly different than the 3-anchor Bankart repair with suture retensioning (P > .232).Discussion and conclusions: Adding both suture retensioning and a PI anchor to the Bankart repair significantly increases stiffness and decreases elongation. Beyond a potentially decreased risk for instability recurrence, adding both suture retensioning and a PI anchor to the Bankart repair may also encourage an accelerated postoperative rehabilitation process. 0 0 0 0