Do developmental orthopaedic disorders influence future jumping performances in Warmblood stallions?
Authors: Verwilghen D R, Janssens S, Busoni V, Pille F, Johnston C, Serteyn D
Journal: Equine veterinary journal
Summary
# Editorial Summary Developmental orthopaedic disorders (DOD) are common radiographic findings in young horses, yet their actual impact on athletic careers remains poorly understood in the jumping disciplines. Verwilghen and colleagues examined 215 Warmblood stallions with both radiographic records and documented showjumping performances to determine whether specific DOD lesions predicted reduced competitive output or achievement scores. Whilst generalised DOD presence had no bearing on performance outcomes, location-specific findings proved significant: osteochondral disease at the lateral trochlear ridge of the femur (femoropatellar joint) was associated with both substantially fewer competitive performances and lower performance scores, and osteochondral fragments at the dorsal sagittal ridge of the metacarpophalangeal joint similarly reduced competition frequency, though fragmentation within the tarsocrural joint showed no performance impact. These findings carry important implications for pre-purchase evaluation and breeding decisions in sport horses, as radiographic screening protocols should weight femoropatellar OCD heavily as a genuine performance concern, whilst incidental tarsocrural lesions may warrant less clinical concern for jumping prospects.
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Practical Takeaways
- •Radiographic findings of OCD in the femoropatellar joint should prompt careful consideration of athletic potential in Warmblood jumping stallions, as these lesions significantly limit future performance
- •The location of developmental lesions matters more than their mere presence; tarsocrural joint involvement does not necessarily predict poor performance, whereas femoral ridge lesions are more predictive of reduced athletic capability
- •Pre-purchase radiographic screening should specifically focus on femoropatellar and dorsal metacarpo/metatarsophalangeal joint regions when assessing jumping prospects, as lesions here are associated with measurably reduced competition records
Key Findings
- •OCD at the dorsal aspect of the sagittal ridge of the metacarpo/metatarsophalangeal joint resulted in significantly lower numbers of performances
- •Osteochondrosis of the lateral trochlear ridge of the femur caused significantly lower performance scores and numbers of performances compared to controls
- •DOD lesions in the tarsocrural joint had no significant influence on showjumping performance
- •Overall, specific DOD location and site within the joint influence future jumping performance, with femoropatellar OCD having the most negative impact