Comparison of visual lameness scores to gait asymmetry in racing Thoroughbreds during trot in‐hand

Equine Veterinary Education - Tập 32 Số 4 - Trang 191-198 - 2020
Thilo Pfau1,2, M. F. Sepulveda Caviedes1,2, Robert J. McCarthy1, L. Cheetham1, B. Forbes3, Marie Rhodin4
1Department of Clinical Science and Services, The Royal Veterinary College, Hatfield, Hertfordshire, UK
2Structure and Motion Lab, The Royal Veterinary College, Hatfield, Hertfordshire, UK
3Singapore Turf Club, Singapore, Singapore
4Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden

Tóm tắt

SummaryRegular monitoring of movement asymmetry with inertial measurement units (IMUs) to aid in the diagnosis of the underlying cause of a lameness is feasible. Normal ranges for specific groups of horses may be required, with consideration of expert veterinary opinions for both asymmetry screening and lameness assessment. The aim of this study was to determine movement asymmetry values compared with expert lameness scores to enable screening for lameness in Thoroughbreds in race training.IMUgait assessment during in‐hand trot‐up was performed in 25 racehorses undergoing routine gait analysis or lameness examination at the Singapore Turf Club. Video recordings were graded numerically (0–5) for lameness by six experienced racehorse veterinarians. Inter‐observer agreement and consistency were determined. Median lameness scores were used to calculate sensitivity and specificity for head, withers and pelvic movement asymmetry. Guideline values for aligning movement asymmetry values with expert opinions about forelimb and hindlimb lameness were determined from receiver operating characteristics (ROC). Inter‐observer agreement was poor to fair, inter‐observer consistency was good (intraclass correlation coefficient: 0.667 for forelimbs and 0.617 for hindlimbs).ROCs indicated higher discriminative power for hindlimb lameness using pelvic asymmetry (90% sensitivity, 93% specificity) compared with forelimb lameness using head asymmetry (69% sensitivity, 89% specificity) or withers asymmetry (44% sensitivity, 89% specificity). When compared to expert lameness scores from videos of a limited number of Thoroughbred racehorses, preliminary guideline values for movement asymmetry screening for forelimb lameness (>|14.5 mm|) and hindlimb lameness (>|7.5 mm|) are higher than previously reported clinical thresholds of >|7 mm| for head movement and >|4 mm| for pelvic movement asymmetry.

Từ khóa


Tài liệu tham khảo

10.1016/S0021-9290(02)00089-1

10.1111/j.1751-0813.1997.tb13836.x

10.2460/ajvr.77.4.337

10.1111/j.2042-3306.1996.tb01592.x

10.1037/1040-3590.6.4.284

10.1016/j.tvjl.2014.05.018

10.2746/042516408X363242

10.20982/tqmp.08.1.p023

10.1111/j.2042-3306.1982.tb02389.x

Keegan K.G., 1998, Evaluation of mild lameness in horses trotting on a treadmill by clinicians and interns or residents and correlation of their assessments with kinematic gait analysis, Am. J. Vet. Res., 59, 1370, 10.2460/ajvr.1998.59.11.1370

10.2746/042516409X479568

10.2460/ajvr.72.9.1156

10.2460/ajvr.73.3.368

10.2307/2529310

10.2460/javma.249.8.940

10.1111/evj.12158

10.1111/j.2042-3306.2012.00571.x

10.4102/jsava.v68i4.893

10.1111/jvim.12320

10.2746/042516408X343000

10.1111/evj.64_12595

10.1242/jeb.01658

10.1111/evj.12374

10.1111/eve.12400

10.1111/evj.12467

10.1111/evj.12705

10.1111/j.2042-3306.2010.00352.x

10.1016/j.tvjl.2013.09.031

10.1111/evj.12446

10.1371/journal.pone.0176253

10.1016/j.tvjl.2015.10.052

10.1136/vr.116.3.66

10.1016/j.jbiomech.2012.03.014

10.1111/j.2042-3306.1997.tb05065.x

Viera A.J., 2005, Understanding interobserver agreement, Fam. Med., 37, 360

10.1111/j.2042-3306.2010.00200.x

Thông tin
Thông tin xuất bản

Equine Veterinary Education

Tập 32 Số 4

191-198

Thông tin tác giả