RADIOGRAPHIC AND ANATOMIC CHARACTERISTICS OF DORSAL HOOF WALL LAYERS IN NONLAMINITIC HORSES.

This research article involves an anatomical and radiographic study of the hoof layers in healthy, non-laminitic horses. The study aims to identify which horse hoof layers correspond to the two visible layers in digital radiographs, a piece of information useful for early diagnosis of acute laminitis.

Understanding the Objective

• The primary goal of this study is to determine which macroscopic hoof layers in healthy horses correspond to the two layers visible in digital radiographs. This is significant for early radiographic diagnosis of acute laminitis in horses, which plays a pivotal role in effective treatment planning and prognosis.

The Study Design and Execution

• The researchers used twelve disconnected horse hooves for this exploratory research. They examined each of these hooves at three different levels of the dorsal hoof wall.
• There are four macroscopic layers that make up the wall of a horse’s hoof. In this study, these layers were variably grouped and compared with the layers that are visible on digital radiographs.
• The researchers also measured and described radiographic layer measurements in a group of 27 healthy Warmblood horses (equating to 54 thoracic feet).

Intent of the Research and Results

• The stratum externum and stratum medium were found to correspond to the superficial radiographic layer, while the stratum internum and dermis parietis represented the deep layer.
• In the group of clinically sound horses, the superficial radiographic layer made up approximately 64.3% ± 3.6% of the total dorsal hoof wall, offering a standard proportionality for healthy horses.

Relevance and Future Implications

• The findings of this study offer valuable baseline information for future research involving horses with acute laminitis. Understanding the hoof wall’s anatomy significantly enhances the chance of early diagnosis, which is key to improving the treatment process and prognosis for horses affected by this condition.