Open Access
CC BY 4.0 · VCOT Open 2024; 07(01): e59-e68
DOI: 10.1055/s-0044-1787563
Case Report

Long-Term Clinical Outcome of Medial Shoulder Instability in a Dog Treated with Synthetic Implant, Cortical Button, and Interference Screw

1   Clinique Vétérinaire Lameilhé, Castres, France
,
2   Novetech Surgery, Nice, France
,
2   Novetech Surgery, Nice, France
3   Université de Lyon, VetAgro Sup, Interactions Cellules Environnement, Marcy l'Etoile, France
4   Univ Lyon, Univ Gustave Eiffel, Univ Claude Bernard Lyon 1, Laboratoire de Biomécanique et Mécanique des Chocs, Lyon, France
› Institutsangaben

Funding This study received no external funding.
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Abstract

Objective The objective of this study was to describe the surgical procedure and long-term outcome of traumatic medial shoulder instability in one dog treated with an ultra-high molecular weight polyethylene implant.

A Fox Terrier had traumatic medial shoulder instability caused by the disruption of the subscapularis muscle and medial glenohumeral ligament. The joint was stabilized through a medial approach with an ultra-high molecular weight polyethylene implant secured on the glenoid by a cortical button and on the humerus by an interference screw. Postoperative and follow-up examinations were performed at 1, 2, 4.5 months, and 2.5 years.

Results The patient bore weight after surgery and resumed normal gait after 2 months. Both the scapular and humeral tunnels had widened, essentially at their medial entrance, at 1 month postoperatively.

Entrance diameter increased for 2 months and remained unchanged thereafter. An increase of 35 degrees in the abduction angle was observed in the long term at the 2.5-year control with minor osteoarthritis. No implant loosening, medial laxity, excessive abduction angle, inflammation, or septic reaction were observed.

Conclusion The treatment of this case resulted in a satisfactory clinical outcome despite tunnel widening. This modified method using an interference screw could thus be considered as an alternative treatment of medial shoulder instability.

Author Contributions

J.L. examined the patient, diagnosed the pathology, performed surgery, performed follow-up visits, analysed data, and revised the manuscript. A.C. and B.G. analysed data, wrote and revised the manuscript.




Publikationsverlauf

Eingereicht: 04. August 2023

Angenommen: 05. Mai 2024

Artikel online veröffentlicht:
14. Juni 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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