A study to investigate a more accurate measurement of the parallel relationship between the distal phalanx and the dorsal hoof wall
Authors: Greenham
Journal: FWCF Fellowship Thesis
Summary
# Editorial Summary Greenham's 2024 investigation addressed a fundamental question in farriery: how accurately can we assess the parallelism between the distal phalanx and dorsal hoof wall, structures critical for evaluating hoof–pastern axis and diagnosing pathology? Using 40 cadaver forelimbs, the researcher created standardised reference points on sagittal sections, loaded specimens to 180 kg with a hydraulic press, and analysed photographic measurements to compare the angulation of the proximal 15 mm of dorsal hoof wall against the dorsal parietal surface of the distal phalanx—both with and without the extensor process included. Results demonstrated statistically significant parallelism (p<0.001) when measurements included the extensor process, suggesting this anatomical landmark should be incorporated into assessment protocols. For practitioners, this finding offers a more evidence-based approach to evaluating phalangeal alignment and hoof balance during routine trimming and remedial farriery, potentially improving diagnostic accuracy and treatment outcomes for conditions linked to misalignment.
Practical Takeaways
- •When assessing hoof balance and phalangeal alignment clinically or radiographically, consider the proximal 15mm of the dorsal hoof wall including the extensor process as the most accurate reference point for measuring alignment
- •This measurement method provides a more reliable basis for diagnosing hoof pastern axis deviations and associated pathologies in farriery and veterinary assessments
- •Use these findings to improve consistency and accuracy when evaluating hoof conformation, trimming outcomes, and shoeing decisions across different horses
Key Findings
- •Significant parallelism (p<0.001) exists between the proximal 15mm of dorsal hoof wall and the dorsal parietal surface of the distal phalanx when including the extensor process
- •The proximal 15mm dorsal hoof wall measurement provides a more accurate reference point than measurements excluding the extensor process
- •Study of 40 cadaver fore feet under 180kg hydraulic load demonstrated measurable angular relationships between hoof wall and distal phalanx