Partial resection of bilateral ulnar remnants for treatment of carpus valgus in a 3-week-old Hanoverian foal.
Abstract: A 3-week old Hanoverian foal was presented with bilateral moderate to severe carpal valgus. The deviations were 10 and 14 degrees, respectively for the left and right carpi and orthogonal radiographs of both front limbs highlighted bilateral persistent ulnar remnants. A partial resection of the ulnar remnants and periosteal transection on the disto-lateral aspect of the radius were performed bilaterally under general anesthesia. The valgus deviations began to improve within the first month and the limbs were almost straight (2 degrees for the left and right carpi) 5 1/2 months after surgery. This is the first report of successful surgical correction of bilateral carpal valgus secondary to persistent ulnar remnants in a large breed foal. The combination of partial ulnar remnant resection and radial disto-lateral periosteal transection, detailed in this report, should be considered for treatment of foals with this condition. Résection ulnaire bilatérale partielle comme traitement d’un valgus des carpes chez un poulain Hanovrien de 3 semaines d’âge. Un poulain Hanovrien de 3 semaines d’âge a été présenté avec un valgus bilatéral des carpes. Les déviations étaient de 10 et 14 degrés, pour les carpes gauche et droit respectivement. Des projections radiographiques orthogonales des deux membres antérieurs ont mis en évidence un ulna persistant bilatéralement. Une résection partielle des ulnas persistants et une section périostée de l’aspect disto-latéral de chaque radius a été effectuée sous anesthésie générale. Une amélioration des déviations a d’abord été observé durant le premier mois et les deux membres antérieurs étaient quasi droits (2 degrés pour chacun des carpes) 5 1/2 mois après la chirurgie. Ceci est le premier rapport de cas à décrire la correction chirurgicale d’un valgus bilatéral des carpes secondaire à la présence d’ulnas persistants, chez un poulain de grande taille. La combinaison de la résection ulnaire partielle et de la section périostée disto-latérale du radius présentée ici devraient être considérée comme traitement des poulains présentant cette condition.(Traduit par Dre Julia Dubuc).
Publication Date: 2019-08-09 PubMed ID: 31391604PubMed Central: PMC6625371
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Summary
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The study presents a successful surgical correction of a rare orthopedic condition (bilateral carpal valgus caused by persistent ulnar remnants) in a young Hanoverian foal, by performing a combination of partial ulnar remnant resection and radial disto-lateral periosteal transection.
Overview of the Study
- The article describes a case study of a 3-week old Hanoverian foal that was presented with a severe orthopaedic deformation known as bilateral carpal valgus. This is a condition where the front limbs of the foal deviate outward to varying degrees.
- Upon analysis, the deformity was found to be caused by a unique and rare cause – the persistence of ulnar remnants. These are parts of a bone (the ulna) that persist unusually, and in this foal’s case, were causing the limbs to deviate.
Surgical Methods Used
- The researchers carried out a partial resection of the ulnar remnants along with a periosteal transection on the exterior portion of the radius bone, all under general anesthesia. The periosteal transection involves severing the membrane that covers the bone, enabling natural correction and growth.
- The procedure was performed on both front limbs of the foal, hence the use of the term ‘bilateral’ in describing the condition and procedure.
Results and Conclusion
- After the surgery, the foal showed significant improvement within the first month. By the 5 and a half month mark, the limbs were almost completely straight. The corrective margins were noted as 2 degrees for both the left and right carpi (front lower parts of the leg), indicating a major correction from the original 10 and 14-degree deviations.
- This case report is the first successful account of correcting bilateral carpal valgus in a large breed foal that was caused by persistent ulnar remnants using the combination of surgical techniques detailed in the study.
- Given the successful recovery of the foal, the study suggests that this specific combination of partial ulnar remnant resection and radial disto-lateral periosteal transection should be considered for treating foals diagnosed with similar conditions.
Cite This Article
APA
Dubuc J, Da Silveira EA.
(2019).
Partial resection of bilateral ulnar remnants for treatment of carpus valgus in a 3-week-old Hanoverian foal.
Can Vet J, 60(8), 864-868.
Publication
Researcher Affiliations
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, Q.
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, Q.
MeSH Terms
- Animals
- Carpus, Animal
- Extremities
- Horses
- Periosteum
- Radiography
- Ulna
References
This article includes 20 references
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