A cohort study of equine laminitis in Great Britain 2009-2011: estimation of disease frequency and description of clinical signs in 577 cases.

This research estimated the frequency of laminitis, a painful hoof disease, in the horse population of Great Britain between 2009 and 2011, and described the clinical signs of the condition in 577 cases.

Frequently of Laminitis and Study Methodology

• The study followed a prospective cohort study design and gathered data on active episodes of laminitis from the reports of veterinary practitioners.
• They found that the prevalence of veterinary-diagnosed active laminitis was 0.47% for the horse population that was attended to by veterinary practitioners and 0.49% for those registered with veterinary practices.
• In simpler terms, an active case of laminitis was found during roughly one in every 200 equine visits and occurred in nearly one in every 200 horses registered with veterinary practices.
• An estimation of the occurrence of active laminitis among the horses indicated an incidence of 0.5 cases per 100 horse-years at risk.

Clinical Signs of Laminitis

• The study found that laminitis can affect any of the horse’s limbs, but it most commonly affected the front limbs on both sides (53.5% of cases).
• The front feet generally experienced the most severe symptoms.
• Common clinical signs of laminitis in horses included increased pulses in the digits (toes), difficulty turning, and a short, stiff gait at walking.

Comparison with Previous Research

• The recorded frequency of laminitis in this study was much lower than the estimates provided in previous studies.
• The researchers suggest that this discrepancy might be attributed to differences in the geographical location of the study, the timeframe of the study, the defined cases, the study design followed and the populations of horses studied.