Multiple congenital musculoskeletal abnormalities in a mule foal: A case report.
Authors: Nocera Irene, Di Franco Chiara, Sorvillo Benedetta, Sgorbini Micaela, Moroni Rebecca, Patroncini Stefano, Citi Simonetta
Journal: Journal of equine veterinary science
Summary
Musculoskeletal abnormalities in neonatal equids are well-documented, yet their presentation in mule foals remains less thoroughly characterised in the literature. This case report details the clinical management of a newborn mule presenting with concurrent angular limb deformities (bilateral carpal valgus), generalised hind limb ligament laxity, and severe mandibular prognathism—a combination requiring both conservative and surgical intervention. Mandibular malformation was corrected using tension orthodontic wiring, which achieved significant occlusal improvement without requiring further adjustment, whilst the angular and soft tissue abnormalities resolved substantially through conservative management (stall confinement and exercise restriction) within the first month of life. Recognition that mule foals can present with multiple congenital musculoskeletal abnormalities—potentially as clusters associated with developmental disturbances—should inform clinical vigilance and early intervention protocols. For practitioners managing neonatal cases, this report underscores the value of combining judicious surgical correction of functional deficits (such as severe malocclusion affecting nursing) with time-dependent maturation, particularly given the often-favourable response to conservative management in young foals during critical growth phases.
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Practical Takeaways
- •Mandibular prognathism in neonatal equids can be effectively treated surgically with tension orthodontic wire, even in mule foals, with good outcomes if intervention is timely.
- •Multiple congenital musculoskeletal abnormalities often occur together in neonates; conservative management including stall rest and restricted exercise can be effective for angular limb deformities and ligament laxity alongside surgical correction of severe jaw defects.
- •Early recognition and appropriate management of congenital abnormalities in neonatal equids is essential for optimizing long-term outcomes and preventing secondary complications.
Key Findings
- •A mule foal presented with multiple congenital musculoskeletal abnormalities including bilateral carpal angular deviation, hind limb ligament laxity, and severe mandibular prognathism.
- •Tension orthodontic wire application successfully corrected mandibular malocclusion with significant postoperative improvement and no need for further correction.
- •Conservative management with stall rest and exercise limitation resulted in considerable improvement of other musculoskeletal abnormalities within the first month of life.
- •Jaw malformations can occur in mule foals and may be associated with multiple congenital abnormalities, requiring early recognition and appropriate management.