Acknowledgement
We deeply acknowledge the resident veterinarian's at large animal clinics, University Veterinary Hospital-Universiti Putra Malaysia (UVH-UPM) for their assistant and horse owners for consent to use their horses.
References
- Jeffcott LB. Disorders of the thoracolumbar spine of the horse--a survey of 443 cases. Equine Vet J. 1980;12(4):197-210. https://doi.org/10.1111/j.2042-3306.1980.tb03427.x
- Gillis C. Spinal ligament pathology. Vet Clin North Am Equine Pract. 1999;15(1):97-101. https://doi.org/10.1016/S0749-0739(17)30166-9
- Henson FM, Lamas L, Knezevic S, Jeffcott LB. Ultrasonographic evaluation of the supraspinous ligament in a series of ridden and unridden horses and horses with unrelated back pathology. BMC Vet Res. 2007;3:3. https://doi.org/10.1186/1746-6148-3-3
- Mayaki AM, Intan-Shameha AR, Noraniza MA, Mazlina M, Adamu L, Abdullah R. Clinical investigation of back disorders in horses: a retrospective study (2002-2017). Vet World. 2019;12(3):377-381. https://doi.org/10.14202/vetworld.2019.377-381
- Dyson S, Berger JM, Ellis AD, Mullard J. Behavioral observations and comparisons of nonlame horses and lame horses before and after resolution of lameness by diagnostic analgesia. J Vet Behav. 2018;26:64-70. https://doi.org/10.1016/j.jveb.2018.05.001
- Landman MA, de Blaauw JA, van Weeren PR, Hofland LJ. Field study of the prevalence of lameness in horses with back problems. Vet Rec. 2004;155(6):165-168. https://doi.org/10.1136/vr.155.6.165
- Mohammed HO, Divers TJ, Summers BA, de Lahunta A. Vitamin E deficiency and risk of equine motor neuron disease. Acta Vet Scand. 2007;49(1):17. https://doi.org/10.1186/1751-0147-49-17
- Weber Polack E, King JM, Cummings JF, de Lahunta A, Divers TJ, Mohammed HO. Quantitative assessment of motor neuron loss in equine motor neuron disease (EMND). Equine Vet J. 1998;30(3):256-259. https://doi.org/10.1111/j.2042-3306.1998.tb04497.x
- Riccio B, Fraschetto C, Villanueva J, Cantatore F, Bertuglia A. Two multicenter surveys on equine back-pain 10 years a part. Front Vet Sci. 2018;5:195. https://doi.org/10.3389/fvets.2018.00195
- American Association of Equine Practitioners (AAEP) Horse Show Committee. Guide to Veterinary Services for Horses Shows. 7th ed. Lexington: American Association of Equine Practitioners; 1999.
- Cauin E. Assessment of back pain in horses. In Pract. 1997;19:522-533. https://doi.org/10.1136/inpract.19.10.522
- de Heus P, van Oossanen G, van Dierendonck MC, Back W. A pressure algometer is a useful tool to objectively monitor the effect of diagnostic palpation by a physiotherapist in Warmblood horses. J Equine Vet Sci. 2010;30(6):310-321. https://doi.org/10.1016/j.jevs.2010.04.010
- Haussler KK, Erb HN. Pressure algometry for the detection of induced back pain in horses: a preliminary study. Equine Vet J. 2006;38(1):76-81. https://doi.org/10.2746/042516406775374225
- Lane DM, Hill SA. Pressure algometry measurement of canine muscular pain near the thoracolumbar junction: evaluation of a modified technique. Vet Anaesth Analg. 2016;43(2):227-234. https://doi.org/10.1111/vaa.12308
- Grint NJ, Beths T, Yvorchuk K, Taylor PM, Dixon M, Whay HR, et al. The influence of various confounding factors on mechanical nociceptive thresholds in the donkey. Vet Anaesth Analg. 2014;41(4):421-429. https://doi.org/10.1111/vaa.12132
- Pongratz U, Licka T. Algometry to measure pain threshold in the horse's back - An in vivo and in vitro study. BMC Vet Res. 2017;13(1):80. https://doi.org/10.1186/s12917-017-1002-y
- Dyson S, Murray R. Pain associated with the sacroiliac joint region: a clinical study of 74 horses. Equine Vet J. 2003;35(3):240-245. https://doi.org/10.2746/042516403776148255
- Lesimple C, Fureix C, Biquand V, Hausberger M. Comparison of clinical examinations of back disorders and humans' evaluation of back pain in riding school horses. BMC Vet Res. 2013;9:209. https://doi.org/10.1186/1746-6148-9-209
- Martin BB Jr, Klide AM. Physical examination of horses with back pain. Vet Clin North Am Equine Pract. 1999;15(1):61-70. https://doi.org/10.1016/S0749-0739(17)30163-3
- Sardari K. Back pain: a significant cause of poor performance in show jumping horses (diagnostic challenge and treatment). Iran J Vet Surg. 2008;5(2):163-169.
- Bergmann W, Bergknut N, Veraa S, Grone A, Vernooij H, Wijnberg ID, et al. Intervertebral disc degeneration in Warmblood horses: morphology, grading, and distribution of lesions. Vet Pathol. 2018;55(3):442-452. https://doi.org/10.1177/0300985817747950
- Veraa S, Bergmann W, Wijnberg ID, Back W, Vernooij H, Nielen M, et al. Equine cervical intervertebral disc degeneration is associated with location and MRI features. Vet Radiol Ultrasound. 2019;60(6):696-706. https://doi.org/10.1111/vru.12794
- Cousty M, Retureau C, Tricaud C, Geffroy O, Caure S. Location of radiological lesions of the thoracolumbar column in French trotters with and without signs of back pain. Vet Rec. 2010;166(2):41-45. https://doi.org/10.1136/vr.c70
- Hyytiainen HK, Mykkanen AK, Hielm-Bjorkman AK, Stubbs NC, McGowan CM. Muscle fibre type distribution of the thoracolumbar and hindlimb regions of horses: relating fibre type and functional role. Acta Vet Scand. 2014;56(1):8. https://doi.org/10.1186/1751-0147-56-8
- Barstow A, Dyson S. Clinical features and diagnosis of sacroiliac joint region pain in 296 horses: 2004-2014. Equine Vet Educ. 2015;27(12):637-647. https://doi.org/10.1111/eve.12377
- Knutson GA, Owens EF. Active and passive characteristics of muscle tone and their relationship to models of subluxation/joint dysfunction: Part I. J Can Chiropr Assoc. 2003;47(3):168-179.
- Licka T, Frey A, Peham C. Electromyographic activity of the longissimus dorsi muscles in horses when walking on a treadmill. Vet J. 2009;180(1):71-76. https://doi.org/10.1016/j.tvjl.2007.11.001
- Stubbs NC, Riggs CM, Hodges PW, Jeffcott LB, Hodgson DR, Clayton HM, et al. Osseous spinal pathology and epaxial muscle ultrasonography in Thoroughbred racehorses. Equine Vet J Suppl. 2010;(38):654-661.
- Girodroux M, Dyson S, Murray R. Osteoarthritis of the thoracolumbar synovial intervertebral articulations: clinical and radiographic features in 77 horses with poor performance and back pain. Equine Vet J. 2009;41(2):130-138. https://doi.org/10.2746/042516408X345099
- Meehan L, Dyson S, Murray R. Radiographic and scintigraphic evaluation of spondylosis in the equine thoracolumbar spine: a retrospective study. Equine Vet J. 2009;41(8):800-807. https://doi.org/10.2746/042516409X436592
- Zimmerman M, Dyson S, Murray R. Comparison of radiographic and scintigraphic findings of the spinous processes in the equine thoracolumbar region. Vet Radiol Ultrasound. 2011;52(6):661-671. https://doi.org/10.1111/j.1740-8261.2011.01845.x
- Greve L, Dyson S, Pfau T. Alterations in thoracolumbosacral movement when pain causing lameness has been improved by diagnostic analgesia. Vet J. 2017;224:55-63. https://doi.org/10.1016/j.tvjl.2017.03.009
- Johnston C, Holmt K, Faber M, Erichsen C, Eksell P, Drevemo S. Effect of conformational aspects on the movement of the equine back. Equine Vet J Suppl. 2002;(34):314-318.
- Kleinstuck F, Dvorak J, Mannion AF. Are "structural abnormalities" on magnetic resonance imaging a contraindication to the successful conservative treatment of chronic nonspecific low back pain? Spine. 2006;31(19):2250-2257. https://doi.org/10.1097/01.brs.0000232802.95773.89
- Lesimple C, Fureix C, De Margerie E, Seneque E, Menguy H, Hausberger M. Towards a postural indicator of back pain in horses (Equus caballus). PLoS One. 2012;7(9):e44604. https://doi.org/10.1371/journal.pone.0044604
- Ellis AD, Stephenson M, Preece M, Harris P. A novel approach to systematically compare behavioural patterns between and within groups of horses. Appl Anim Behav Sci. 2014;161:60-74. https://doi.org/10.1016/j.applanim.2014.09.017
- Hall C, Heleski C. The role of the ethogram in equitation science. Appl Anim Behav Sci. 2017;190:102-110. https://doi.org/10.1016/j.applanim.2017.02.013