Musculoskeletal Injury Epidemiology in Racehorses
Summary
Musculoskeletal injury epidemiology in racehorses encompasses the study of patterns, causes and outcomes associated with injuries to the bones, joints, tendons and ligaments of horses engaged in competitive racing. These injuries range from stress‐related microfractures of the distal limb to catastrophic condylar breaks and tendon desmitis. Incidence varies by surface type, race distance, training regimen and individual horse factors such as age, sex and previous injury history. High‐speed locomotion subjects the metacarpophalangeal and metatarsophalangeal joints to cyclic loading that can exceed material strength, leading to cumulative damage in subchondral bone and soft tissues. Epidemiological surveillance—through racing stewards’ reports, veterinary examinations and post‐mortem studies—has revealed that injury rates are influenced by track hardness and moisture, turn radius, race class and stride mechanics. Advances in imaging, biomechanics and genetic screening have begun to inform risk stratification, with the ultimate aim of reducing fatal and non‐fatal injuries, improving welfare and optimising performance across global racing jurisdictions.
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Musculoskeletal Injury Epidemiology in Racehorses publication trend
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Technical terms
Subchondral bone: The dense layer of bone just below the cartilage in a joint, critical for load distribution.
Micro‐computed tomography (micro‐CT): A high‐resolution X‐ray imaging modality that visualises bone microarchitecture in three dimensions.
Stride length: The linear distance covered by a horse’s hoof between successive ground contacts of the same limb.
Stride frequency: The number of strides taken by a horse per unit of time, often expressed in strides per second.
Incidence rate: A measure of the occurrence of new injury cases in a defined population over a specified time period.
References
- Dirt Track Surface Preparation and Associated Differences in Speed, Stride Length, and Stride Frequency in Galloping Horses. Sensors (2024).
- Effects of Racing Surface and Turn Radius on Fatal Limb Fractures in Thoroughbred Racehorses. Sustainability (2021).
- Computed Tomographic Imaging of Subchondral Fatigue Cracks in the Distal End of the Third Metacarpal Bone in the Thoroughbred Racehorse Can Predict Crack Micromotion in an Ex-Vivo Model. PLOS ONE (2014).
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