Effect of hoof trimming on the occurrence of distal phalangeal palmar process fractures in foals.

The research aimed to determine whether frequent trimmings of a foal’s front hooves lead to an increase in the occurrence of palmar process fractures, a type of bone fracture in the hoof. The study found that this was not the case and hoof parameters didn’t significantly differ among foals with and without fractures.

Research Methodology

• The study involved twenty foals between the ages of 4 to 8 weeks from multiple breeds.
• The study spanned over a period of 12 weeks and the foals were examined every two weeks.
• Out of the total, the front hooves of ten foals were extensively trimmed every four weeks while the other ten were left untrimmed for comparison purposes.

Findings

• Fractures of the palmar process occurred in 4 of the trimmed foals and 3 of the untrimmed ones.
• Four of the foals with fractures experienced brief lameness, rated on a scale (Grades I-II/V), while inconsistency was found in hoof tester sensitivity with fractures.
• At the end of the study, all foals with fractures were sound, indicating they had recovered from any lameness or disruptions due to the fractures.

Healing Process & Effects

• The healing process of the fractures, based on radiographic evaluations, took an average of 8.4 weeks.
• Two out of the three foals with fractures developed a club-footed conformation, an abnormal hoof growth, which might suggest a possible long-term effect of the fractures.
• However, the hoof measurements or parameters did not significantly differ between foals with and without fractures, suggesting that the fractures did not have significant impact on overall hoof development or structure.

Conclusion

• The researchers concluded that extensive trimmings of the heels did not appear to affect the incidence of palmar process fractures in the foals that were studied. This suggests that hoof trimming, an often-used horse care practice, may not increase the risk of these fractures.