Using accelerometers to identify a high risk of catastrophic musculoskeletal injury in three racing Thoroughbreds.

This research article discusses the use of accelerometer-based sensors in racing Thoroughbreds to identify high risk of catastrophic musculoskeletal injuries and intervene to prevent potential damage. Applying both veterinary examination and advanced imaging, the study demonstrated the successful identification of injuries in three cases, with the subsequent return of two horses to racing after recovery.

Procedure

• The selected Thoroughbred racehorses were assessed through inertial measurement unit (IMU) sensors. These sensors detected movement deviation in the horses during racing and breezing, thus providing valuable insights into their patterns.
• An algorithm was used to assess the horses’ risk of musculoskeletal injuries through data collected from over 20,000 race starts.
• Followed by this screening, the horses underwent a veterinary examination and positron emission tomography with 18F-sodium fluoride (18F-NaF) within 10 days after their respective racing or breezing.

Results

• The veterinary examinations and imaging identified intensities and location of 18F-NaF uptake in the third metacarpal bone of case 1 and case 2, highlighting them as high-risk subjects for condylar fractures.
• For case 3, an impending slab fracture was detected through the iodine uptake measurements in the third carpal bone.
• After convalescence periods, case 1 and 2, when re-examined, showed significant improvement, eliminating their high risk of catastrophic injury. They were thus able to return to their racing activities.
• Case 3 could resume training, but it is yet to return to the racing track.

Conclusions

• The findings of the research emphasize the significant role of IMU sensors in early detection of potential severe musculoskeletal injuries in Thoroughbred racehorses.
• These sensors offer the potential for timely veterinary intervention, aiding in the prevention of serious injuries and facilitating the recovery and return of horses to their normal activities.