The clinical presentation and surgical treatment of verrucous dermatitis lesions in a draught horse.

The research discusses the application of a combined surgical treatment (sharp dissection and electrocautery) for verrucous pastern dermatitis in a draught horse, and monitors the success of the procedure over a period of 24 months post-surgery.

Understanding Verrucous Pastern Dermatitis

• Verrucous pastern dermatitis, also known as ‘greasy heel’ or ‘mud fever’, is a skin condition that usually affects the lower limbs of horses (often the hindlimbs). Specific reasons behind its cause are unclear, but it is thought to be associated with wet, muddy conditions, the horse’s immune response, and microbial infections.
• The condition evolves into a chronic progressive disease, leading to formation of infected, thickened, wart-like masses. The challenge with verrucous pastern dermatitis is its treatment, especially when at a chronic stage, where the formation of verrucous masses is evident.
• Prior to this study, there have been no reported successful surgical treatments specifically for the verrucous lesions observed in the chronic stages of the disease.

Case Study: Draught Horse

• In this study, the subject was an 11-year-old gelding draught horse with multifocal circumscribed verrucous masses on its distal hindlimb, a complicated case of verrucous pastern dermatitis.
• In response to the complexity and severity of the condition, the researchers applied a combined surgical treatment. Sharp dissection was used in conjunction with electrocautery – a procedure that uses an electric current to cut through tissue – to resect (remove) numerous verrucous masses.

Evaluation and Conclusion

• The surgical treatment outcome was assessed over a period of 24 months. At this postoperative stage, there was no significant regrowth of the verrucous lesions or complications associated with the surgical procedure.
• This suggest that such combined surgical approach could successfully treat multifocal circumscribed verrucous masses in the chronic stages of verrucous pastern dermatitis, potentially providing a novel method towards managing such complex conditions in horses.