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German Congress of Orthopaedics and Traumatology (DKOU 2019)

22. - 25.10.2019, Berlin

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Anterolateral fractures of the coronoid process of the ulna

Meeting Abstract

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  • presenting/speaker Valentin Rausch - Uniklinik Köln, Klinik für Orthopädie und Unfallchirurgie, Schwerpunkt für Unfall-, Hand- und Ellenbogenchirurgie, Köln, Germany
  • Sina Neugebauer - Uniklinik Köln, Klinik für Orthopädie und Unfallchirurgie, Schwerpunkt für Unfall-, Hand- und Ellenbogenchirurgie, Köln, Germany
  • Tim Leschinger - Uniklinik Köln, Klinik für Orthopädie und Unfallchirurgie, Schwerpunkt für Unfall-, Hand- und Ellenbogenchirurgie, Köln, Germany
  • Michael Hackl - Uniklinik Köln, Klinik für Orthopädie und Unfallchirurgie, Schwerpunkt für Unfall-, Hand- und Ellenbogenchirurgie, Köln, Germany
  • Lars P. Müller - Uniklinik Köln, Klinik für Orthopädie und Unfallchirurgie, Schwerpunkt für Unfall-, Hand- und Ellenbogenchirurgie, Köln, Germany
  • Kilian Wegmann - Uniklinik Köln, Klinik für Orthopädie und Unfallchirurgie, Schwerpunkt für Unfall-, Hand- und Ellenbogenchirurgie, Köln, Germany

Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2019). Berlin, 22.-25.10.2019. Düsseldorf: German Medical Science GMS Publishing House; 2019. DocAB43-572

doi: 10.3205/19dkou361, urn:nbn:de:0183-19dkou3611

Published: October 22, 2019

© 2019 Rausch et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

Text

Objectives: This study aimed to describe the incidence of anterolateral coronoid fractures in a level 1 trauma center and their fragment sizes. We hypothesized that anterolateral coronoid fractures occur regularly in cases of injured elbows.

Methods: Patients treated for a coronoid process fracture at our institution and receiving a computer-tomography scan between 06/2011 and 07/2018 were included. We excluded patients <18 years, with arthritic changes or previous operative treatment to the elbow, and with complex elbow injuries. In patients with anterolateral fractures to the coronoid process coronoid height and fragment size (antero-posterior, medio-lateral, and craniocaudal) were measured and correlated to elbow function at final clinical follow-up.

Results: 72 patients (mean age: 47 years; ±17.6) could be included in the study. 15 patients (20.8%) had an anterolateral facture. The mean antero-posterior fragment length was 7 ± 2.3 mm. The fragment affected a mean of 44 ± 13.0% of the coronoid height. The mean mediolateral size of the fragment was 9 ± 4.3 mm, the mean cranio-caudal size was 6 ± 2.5 mm. 14 of these 15 patients were treated operatively, with 9 cases of osteosynthesis of the coronoid. Mean follow-up after operation was 17 ± 12.3 months. Mean range of motion for flexion/extension was 121 ± 20.3° and 152 ± 26.2° for pronation/supination.

Conclusion: Coronoid fractures regularly include the anterolateral facet, possibly affecting the annular ligament insertion.