Fracture of the Central Tarsal Bone in Nonracehorses: Four Cases.

The article discusses a study aiming to understand the clinical features, diagnosis, and outcomes of central tarsal bone fractures in non-racehorses. The research indicates that while these fractures are commonly undetected in initial radiographs, adopting other diagnostic perspectives can help in better identification.

Overview and Methodology

• This research focuses on the rarely recognized central tarsal bone fractures causing acute severe hind limb lameness in nonracehorses. The research indicates that initial diagnosis of such fractures can be challenging due to limited knowledge about their formation and outcomes.
• Through a retrospective study, the researchers analyze medical records from 2001 to 2014 to identify cases of central tarsal bone fractures.
• Diagnostic techniques including radiography, ultrasound, computed tomography (CT), and nuclear scintigraphy were used to study these fractures.
• Key elements such as the history, clinical presentation, and outcome of each case were meticulously recorded and studied.

Findings

• Four non-racehorses met the study criteria, each presenting with a similar fracture type identified as a simple nondisplaced slab fracture, displayed in a dorsomedial to plantarolateral orientation.
• Interestingly, in three of the four cases, the initial radiography failed to identify the fracture. However, with the usage of additional plantarolateral-dorsomedial oblique radiographic views, fractures in all cases could be identified conclusively.
• The researchers note that the orientation of these fractures in nonracehorses differ from those found in racehorses, underlining the potential differences in the causes and impacts of such fractures between both categories of horses.

Conclusion and Recommendations

• While computed tomography (CT) can be effectively used for detecting and assessing these fractures, the researchers propose that radiography, when executed with the appropriate orientations, can also serve as a reliable detection method.
• Particularly, they recommend using several plantarolateral to dorsomedial radiographic projections at varying degrees of obliquity for horses suspected of having a central tarsal bone fracture.