Outcome of arthroscopic debridement for the treatment of incomplete third carpal bone slab fractures in racehorses.
Authors: Garcia-Collao Miriam R, Curtiss Alexandra L, Hogan Patricia M
Journal: Veterinary surgery : VS
Summary
# Arthroscopic Debridement for Incomplete Third Carpal Bone Slab Fractures in Racehorses Incomplete slab fractures of the third carpal bone (C3) represent a challenging injury in racing stock, with potential for progression to complete fractures and degenerative joint disease if left untreated. This retrospective analysis of 33 racehorses (19 Thoroughbreds, 14 Standardbreds) undergoing arthroscopic debridement examined surgical outcomes, racing performance metrics, and return-to-work timelines. Two-thirds of horses (66.7%) returned to racing following arthroscopic debridement, with a median convalescence of 247 days, and notably, no statistically significant difference in pre- and post-operative earnings per start or total earnings—indeed, several horses demonstrated increased racing frequency and earnings after treatment. Fracture configuration (dorsal versus sagittal orientation) and breed did not influence outcome, suggesting that arthroscopic debridement offers a standardised, effective approach to managing this injury regardless of fracture morphology. For equine practitioners, these findings support early detection and prompt surgical intervention as a viable strategy to prevent disease progression and preserve athletic function, though the substantial recovery period should inform realistic client expectations and rehabilitation planning.
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Practical Takeaways
- •Arthroscopic debridement of incomplete third carpal bone slab fractures offers reasonable prognosis for return to racing, with approximately two-thirds of racehorses resuming competitive careers
- •Plan for approximately 8 months (247 days) convalescence post-surgery before considering return to racing
- •Early diagnosis and intervention before progression to complete fractures or secondary osteoarthritis may optimize athletic outcomes
Key Findings
- •66.7% (22/33) of racehorses returned to racing after arthroscopic debridement of third carpal bone incomplete slab fractures
- •No significant difference in racing outcomes between dorsal and sagittal fracture orientations
- •No significant differences in earnings per start or total earnings before and after surgery
- •Median convalescence period was 247.1 days, with 81.8% of horses having at least one career start prior to surgery