Concurrent radiological and ultrasonographical findings in the forelimb proximal sesamoid bones and adjacent suspensory ligament branches in yearling and 2-year-old Thoroughbred sales horses.
Authors: Peat Frances J, Kawcak Christopher E, McIlwraith C Wayne, Berk Jeffrey T, Keenan David P
Journal: Equine veterinary journal
Summary
# Editorial Summary Proximal sesamoid bone conformation and suspensory ligament branch integrity represent critical considerations when evaluating young Thoroughbreds at sales, yet the relationship between radiological sesamoid morphology and concurrent soft tissue pathology has remained poorly characterised. Researchers performed concurrent radiographical and ultrasonographical examination of the forelimb proximal sesamoid bones and adjacent suspensory ligament insertions in yearling and 2-year-old Thoroughbreds presented at public auction, stratifying findings by radiological sesamoid grade to establish prevalence patterns of ultrasonographical branch changes. The study revealed substantive correlations between radiological sesamoid appearance and ultrasonographical evidence of suspensory ligament branch involvement, with specific prevalence rates varying according to sesamoid grade—findings that challenge assumptions about the independence of skeletal and soft tissue changes in this population. For practitioners involved in pre-purchase evaluation, these concurrent imaging patterns provide evidence-based context for interpreting radiological sesamoid findings and should inform risk stratification discussions with vendors and purchasers. Understanding these associations may also help refine prognostic counselling regarding the durability of the proximal suspensory apparatus in young horses entering training or competition.
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Practical Takeaways
- •When evaluating yearlings and 2-year-olds for purchase, radiological sesamoid grades should be considered alongside ultrasound findings of suspensory ligament branches to get a complete picture of forelimb integrity
- •Concurrent imaging findings may help predict clinical soundness and future performance in young Thoroughbreds destined for racing
- •Understanding the relationship between radiological sesamoid changes and soft tissue lesions improves pre-purchase examination protocols
Key Findings
- •Study describes concurrent radiological and ultrasonographical findings in proximal sesamoid bones and suspensory ligament branches in young Thoroughbreds
- •Research addresses prevalence of ultrasonographical branch changes across different radiological grades of sesamoid appearance
- •Findings are relevant to assessment of young horses at public auction sales