caa a22 4500 605459754 CHVBK 20210128100235.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00167-013-2737-z doi (NATIONALLICENCE)springer-10.1007/s00167-013-2737-z Why does minimally invasive coracoclavicular ligament reconstruction using a flip button repair technique fail? An analysis of risk factors and complications [Elektronische Daten] [Benedikt Schliemann, Steffen Roßlenbroich, Kristian Schneider, Christina Theisen, Wolf Petersen, Michael Raschke, André Weimann] Purpose: Aim of the present study was to evaluate the risk factors for the failure of coracoclavicular ligament reconstruction using a flip button repair technique and to analyse complications related to this procedure. Methods: Seventy-one patients (3 female, 68 male) underwent surgical treatment using a flip button repair technique for an acute acromioclavicular joint dislocation. The following factors and its impact on clinical and radiographic outcome were assessed: age at trauma, interval between trauma and surgery, degree of displacement (according to Rockwood's classification), coracoid button position, button migration and post-operative appearance of ossifications. Results: Sixty-three patients were available for follow-up. The overall Constant score was 95.2 points (range 61-100 points) compared to 97 points (range 73-100 points) for the contralateral side (p=0.05). Nine patients (14.3%) needed surgical revision. Inappropriate positioning of the coracoid bone tunnel with subsequent button dislocation was the most frequently observed mode of failure (6 cases, 9.5%). Button migration into the clavicle was associated with loss of reduction (p=0.02). The patient's age at the time of trauma had a significant impact on the clinical outcome, whereas younger patients achieved better results (p=0.02). The interval between trauma and surgery did not significantly affect the outcome (n.s.). Conclusion: Good to excellent clinical results can be achieved with the presented surgical technique. The age of the patient at trauma had a significant influence on the functional outcome. Furthermore, placement of the coracoid button centrally under the coracoid base is crucial to prevent failure. Level of evidence: IV. Springer-Verlag Berlin Heidelberg, 2013 Acromioclavicular joint dislocation nationallicence Coracoclavicular ligaments nationallicence Rockwood's classification nationallicence Coracoclavicular ligament augmentation nationallicence Schliemann Benedikt Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut Roßlenbroich Steffen Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut Schneider Kristian Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut Theisen Christina Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut Petersen Wolf Department of Orthopaedics and Trauma Surgery, Martin-Luther Hospital, Caspar-Theyß-Straße 27-31, 14193, Berlin, Germany aut Raschke Michael Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut Weimann André Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1419-1425 0942-2056 23:5<1419 2015 23 167 https://doi.org/10.1007/s00167-013-2737-z 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/s00167-013-2737-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schliemann Benedikt Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Roßlenbroich Steffen Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Schneider Kristian Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Theisen Christina Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Petersen Wolf Department of Orthopaedics and Trauma Surgery, Martin-Luther Hospital, Caspar-Theyß-Straße 27-31, 14193, Berlin, Germany aut NATIONALLICENCE 700 1- Raschke Michael Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Weimann André Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Waldeyerstraße 1, 48149, Münster, Germany aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1419-1425 0942-2056 23:5<1419 2015 23 167