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PloS one2019; 14(9); e0222989; doi: 10.1371/journal.pone.0222989

Characterization of bony changes localized to the cervical articular processes in a mixed population of horses.

Abstract: The objectives of this observational, cross-sectional study were to characterize and establish the prevalence of osseous proliferation of articular surfaces, joint margins and adjacent soft tissue attachments (i.e., joint capsule and deep spinal muscles) in a mixed population of horses of variable ages, sizes, and breeds to better capture the full spectrum of disease affecting the cervical articular processes. Cranial and caudal articular processes of the cervical and first three thoracic vertebrae (C2-T3) from 55 horses without a primary complaint of neck pain were evaluated for the presence and severity of abnormal bony changes. Data were analyzed to compare alterations in joint margin quadrants, paired articular surfaces within a synovial articulation, left-right laterality, and vertebral level distributions and to determine associations with age, wither height and sex. Seventy-two percent of articular processes had bony changes that were considered abnormal. Osteophyte formation was the most common bony change noted. Overall grades of severity included: normal (28%), mild (45%), moderate (22%), and severe (5%). The highest prevalence of mild changes was localized to the C3-C6 vertebral levels; moderate changes to C6-T2; and severe changes to C2-C3 and C6-T2. Most paired articular surfaces and left-right grades of severity were not significantly different. The grade of osseous pathology was positively associated with both age and wither height. A high prevalence and wide variety of abnormal bony changes of varying severity were found in articular processes across all vertebral levels. The clinical significance of the described lesions is unknown, but the findings are expected to enhance the reporting of articular process and periarticular changes noted on advanced diagnostic imaging of the equine cervical and cranial thoracic vertebral regions.
Publication Date: 2019-09-26 PubMed ID: 31557207PubMed Central: PMC6762202DOI: 10.1371/journal.pone.0222989Google Scholar: Lookup
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  • Journal Article
  • Observational Study
  • Veterinary
  • Research Support
  • Non-U.S. Gov't

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The study focused on examining and identifying the occurrence of abnormal bone growth on joints, joint margins, and nearby soft tissue aspects in horses of varying age, size, and breed. The majority of the examined horses had noticeable abnormal bony changes, with the severity of such changes having a correlation with the animals’ age and size. The implications of these findings are yet to be determined.

Study Objectives and Methodology

  • The purpose of the research was to identify and quantify abnormal bone growths occurring in the spinal processes of horses of different breeds, ages, and sizes to gain a clearer understanding of this condition.
  • The study was observational and cross-sectional, meaning it observed a specific population at a specific point in time.
  • The horses included did not show primary signs of neck discomfort. The cervical and first three thoracic vertebrae (C2-T3) of the 55 horses underwent evaluation to ascertain the presence and severity of abnormal bone changes.
  • The study then compared alterations within different quadrants of the joint margin, various synovial articulations, the left-right laterality, and distribution at different vertebral levels.
  • Furthermore, the data was cross referenced according to age, sex, and horse’s wither height (height from the top of the shoulders to the ground) to identify any potential associations.

Key Findings

  • An overwhelming 72% of the horses showed abnormal bony changes in the examined area. Osteophyte formation or the development of bony protrusions was the most common finding.
  • The observed changes were categorized into four grades of severity: normal (no significant changes observed, 28%), mild (45%), moderate (22%), and severe (5%).
  • Mild changes were most common in the area spanning the third to the sixth cervical vertebrae (C3-C6).
  • Moderate changes were more common in the vertebrae from C6 to T2 (the second thoracic vertebrae).
  • Severe changes were observed in the C2-C3 and C6-T2 regions.
  • Most paired joint surfaces and left-right severity grades did not show significant differences.
  • The age and the wither height of the horses had a positive association with the detected severity of the bony pathologies.

Implications

  • The research unveiled a high prevalence of abnormal bony changes, in horses, varying in severity across different vertebral levels.
  • The clinical implications of such lesions are still uncertain.
  • However, these insights significantly contribute to the identification and reporting of such changes while performing advanced diagnostic imaging of the cervical and cranial thoracic vertebral regions in equines.
  • Understanding these findings could be crucial in the development of treatment strategies and preventive measures for similar conditions in horses.

Cite This Article

APA
Haussler KK, Pool RR, Clayton HM. (2019). Characterization of bony changes localized to the cervical articular processes in a mixed population of horses. PLoS One, 14(9), e0222989. https://doi.org/10.1371/journal.pone.0222989

Publication

ISSN: 1932-6203
NlmUniqueID: 101285081
Country: United States
Language: English
Volume: 14
Issue: 9
Pages: e0222989
PII: e0222989

Researcher Affiliations

Haussler, Kevin K
  • Gail Holmes Equine Orthopaedic Research Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America.
Pool, Roy R
  • Texas A&M University, Department of Veterinary Pathobiology, Veterinary Medicine and Biomedical Sciences, College Station, Texas, United States of America.
Clayton, Hilary M
  • Department of Large Animal Clinical Sciences, Michigan State University, East Lansing, Michigan, United States of America.

MeSH Terms

  • Animals
  • Cervical Vertebrae / pathology
  • Cross-Sectional Studies
  • Female
  • Horses
  • Joints / pathology
  • Male
  • Neck Pain / epidemiology
  • Neck Pain / etiology
  • Neck Pain / veterinary
  • Osteophyte / complications
  • Osteophyte / epidemiology
  • Osteophyte / pathology
  • Osteophyte / veterinary
  • Prevalence
  • Thoracic Vertebrae / pathology

Conflict of Interest Statement

The authors have declared that no competing interests exist.

References

This article includes 63 references
  1. Janes JG, Garrett KS, McQuerry KJ, Pease AP, Williams NM, Reed SM, MacLeod JN. Comparison of magnetic resonance imaging with standing cervical radiographs for evaluation of vertebral canal stenosis in equine cervical stenotic myelopathy.. Equine Vet J 2014 Nov;46(6):681-6.
    doi: 10.1111/evj.12221pubmed: 24329734google scholar: lookup
  2. Sleutjens J, Cooley AJ, Sampson SN, Wijnberg ID, Back W, van der Kolk JH, Swiderski CE. The equine cervical spine: comparing MRI and contrast-enhanced CT images with anatomic slices in the sagittal, dorsal, and transverse plane.. Vet Q 2014;34(2):74-84.
    doi: 10.1080/01652176.2014.951129pubmed: 25174534google scholar: lookup
  3. Moore BR, Holbrook TC, Stefanacci JD, Reed SM, Tate LP, Menard MC. Contrast-enhanced computed tomography and myelography in six horses with cervical stenotic myelopathy.. Equine Vet J 1992 May;24(3):197-202.
  4. Powers BE, Stashak TS, Nixon AJ, Yovich JV, Norrdin RW. Pathology of the vertebral column of horses with cervical static stenosis.. Vet Pathol 1986 Jul;23(4):392-9.
    doi: 10.1177/030098588602300408pubmed: 3750733google scholar: lookup
  5. Papageorges M, Gavin PR, Sande RD, Barbee DD, Grant BD. Radiographic and myelographic examination of the cervical vertebral column in 306 ataxic horses. Vet Radiol Ultrasound 1987;28(2):53–59.
  6. Levine JM, Adam E, MacKay RJ, Walker MA, Frederick JD, Cohen ND. Confirmed and presumptive cervical vertebral compressive myelopathy in older horses: a retrospective study (1992-2004).. J Vet Intern Med 2007 Jul-Aug;21(4):812-9.
  7. Tomizawa N, Nishimura R, Sasaki N, Hayashi Y, Senba H, Hara S, Kadosawa T, Takeuchi A. Morphological analysis of cervical vertebrae in ataxic foals.. J Vet Med Sci 1994 Dec;56(6):1081-5.
    doi: 10.1292/jvms.56.1081pubmed: 7696396google scholar: lookup
  8. Dyson SJ. Lesions of the equine neck resulting in lameness or poor performance.. Vet Clin North Am Equine Pract 2011 Dec;27(3):417-37.
    doi: 10.1016/j.cveq.2011.08.005pubmed: 22100038google scholar: lookup
  9. Lautenschläger I, Baumann I, Schulze M, Martens I, Rohn K, Stadler P. Radiological evaluations of the caudal cervical synovial articulations in the warmblooded horse. / Die röntgenologische Darstellung der caudalen Facettengelenke der Halswirbelsäule beim Warmblutpferd. Pferdeheilkunde 2009;25(6):544–553.
  10. Janes JG, Garrett KS, McQuerry KJ, Waddell S, Voor MJ, Reed SM, Williams NM, MacLeod JN. Cervical Vertebral Lesions in Equine Stenotic Myelopathy.. Vet Pathol 2015 Sep;52(5):919-27.
    doi: 10.1177/0300985815593127pubmed: 26169385google scholar: lookup
  11. DeRouen A, Spriet M, Aleman M. PREVALENCE OF ANATOMICAL VARIATION OF THE SIXTH CERVICAL VERTEBRA AND ASSOCIATION WITH VERTEBRAL CANAL STENOSIS AND ARTICULAR PROCESS OSTEOARTHRITIS IN THE HORSE.. Vet Radiol Ultrasound 2016 May;57(3):253-8.
    doi: 10.1111/vru.12350pubmed: 26915973google scholar: lookup
  12. Birmingham SSW, Reed SM, Mattoon JS, Saville WJ. Qualitative assessment of corticosteroid cervical articular facet injection in symptomatic horses. Equine Vet Educ 2010;22(2):77–82.
  13. Pepe M, Angelone M, Gialletti R, Nannarone S, Beccati F. Arthroscopic anatomy of the equine cervical articular process joints.. Equine Vet J 2014 May;46(3):345-51.
    doi: 10.1111/evj.12112pubmed: 23742017google scholar: lookup
  14. Gellhorn AC, Katz JN, Suri P. Osteoarthritis of the spine: the facet joints.. Nat Rev Rheumatol 2013 Apr;9(4):216-24.
    doi: 10.1038/nrrheum.2012.199pmc: PMC4012322pubmed: 23147891google scholar: lookup
  15. Jaumard NV, Welch WC, Winkelstein BA. Spinal facet joint biomechanics and mechanotransduction in normal, injury and degenerative conditions.. J Biomech Eng 2011 Jul;133(7):071010.
    doi: 10.1115/1.4004493pmc: PMC3705911pubmed: 21823749google scholar: lookup
  16. Martinelli M, Rantanen NW, Grant B. Cervical arthropathy, myelopathy or just a pain in the neck?. Equine Vet Educ 2010;22:88–89.
  17. Nowak N, Huskamp B. Special findings in diseases of the cervical spine in the horse. / Über einige spezielle Befunde bei Erkrankungen der Halswirbelsäule des Pferdes. Pferdeheilkunde 1989;5(2):95–107.
  18. Ricardi G, Dyson SJ. Forelimb lameness associated with radiographic abnormalities of the cervical vertebrae.. Equine Vet J 1993 Sep;25(5):422-6.
  19. Hett AR, Busato A, Ueltschi G. Radiographic measurements of the equine cervical spine with arthrotic alterations—a retrospective statistical study. [Radiologische Messungen an der arthrotisch veränderten Halswirbelsäule des Pferdes—eine retrospektive, statistische Studie]. Pferdeheilkunde 2006;22(3):241–249.
  20. Claridge HA, Piercy RJ, Parry A, Weller R. The 3D anatomy of the cervical articular process joints in the horse and their topographical relationship to the spinal cord.. Equine Vet J 2010 Nov;42(8):726-31.
  21. Moore BR, Reed SM, Biller DS, Kohn CW, Weisbrode SE. Assessment of vertebral canal diameter and bony malformations of the cervical part of the spine in horses with cervical stenotic myelopathy.. Am J Vet Res 1994 Jan;55(1):5-13.
    pubmed: 8141496
  22. Stewart RH, Rush BR. Cervical vertebral stenotic myelopathy. Equine internal medicine 2004;p. 594–599.
  23. Dimock AN, Puchalski SM. Cervical radiology. Equine Vet Educ 2010;22:83–87.
  24. Down SS, Henson FM. Radiographic retrospective study of the caudal cervical articular process joints in the horse.. Equine Vet J 2009 Jul;41(6):518-24.
    doi: 10.2746/042516409x391015pubmed: 19803045google scholar: lookup
  25. Whitwell KE, Dyson S. Interpreting radiographs. 8: Equine cervical vertebrae.. Equine Vet J 1987 Jan;19(1):8-14.
  26. Purefoy Johnson J, Stack JD, Rowan C, Handel I, O'Leary JM. Ultrasound-guided approach to the cervical articular process joints in horses: a validation of the technique in cadavers.. Vet Comp Orthop Traumatol 2017 May 22;30(3):165-171.
    doi: 10.3415/VCOT-16-09-0139pubmed: 28094412google scholar: lookup
  27. Veraa S, Bergmann W, van den Belt AJ, Wijnberg I, Back W. EX VIVO COMPUTED TOMOGRAPHIC EVALUATION OF MORPHOLOGY VARIATIONS IN EQUINE CERVICAL VERTEBRAE.. Vet Radiol Ultrasound 2016 Sep;57(5):482-8.
    doi: 10.1111/vru.12393pubmed: 27438135google scholar: lookup
  28. Chope K. How to Perform Sonographic Examination and Ultrasound-Guided Injection of the Cervical Vertebral Facet Joints in Horses. Proc Amer Assoc Equine Practitioners 2008;54:186–189.
  29. Trostle SS, Dubielzig RR, Beck KA. Examination of frozen cross sections of cervical spinal intersegments in nine horses with cervical vertebral malformation: lesions associated with spinal cord compression.. J Vet Diagn Invest 1993 Jul;5(3):423-31.
    pubmed: 8373859doi: 10.1177/104063879300500321google scholar: lookup
  30. Fürst A. Cervical vertebral arthrosis in horses: an overview [Halswirbelsäulenarthrose beim Pferd: Eine Übersicht]. Prakt Tierarzt 2006;87:956–964.
  31. Tomizawa N, Nishimura R, Sasaki N, Nakayama H, Kadosawa T, Senba H, Takeuchi A. Relationships between radiography of cervical vertebrae and histopathology of the cervical cord in wobbling 19 foals.. J Vet Med Sci 1994 Apr;56(2):227-33.
    doi: 10.1292/jvms.56.227pubmed: 8075209google scholar: lookup
  32. VanderBroek A, Stubbs NC, Clayton HM. Osseous pathology of the synovial intervertebral articulations in the equine thoracolumbar spine. J Equine Vet Sci 2016;44:67–73.
  33. Clayton HM, Buchholz R, Nauwelaerts S. Relationship between morphological and stabilographic variables in standing horses.. Vet J 2013 Dec;198 Suppl 1:e65-9.
    pubmed: 24144772doi: 10.1016/j.tvjl.2013.09.035google scholar: lookup
  34. Binks DA, Gravallese EM, Bergin D, Hodgson RJ, Tan AL, Matzelle MM, McGonagle D, Radjenovic A. Role of vascular channels as a novel mechanism for subchondral bone damage at cruciate ligament entheses in osteoarthritis and inflammatory arthritis.. Ann Rheum Dis 2015 Jan;74(1):196-203.
  35. Rijkenhuizen AB, Németh F, Dik KJ, Goedegebuure SA. The arterial supply of the navicular bone in adult horses with navicular disease.. Equine Vet J 1989 Nov;21(6):418-24.
  36. Rombach N, Stubbs NC, Clayton HM. Gross anatomy of the deep perivertebral musculature in horses.. Am J Vet Res 2014 May;75(5):433-40.
    doi: 10.2460/ajvr.75.5.433pubmed: 24762014google scholar: lookup
  37. Lee MJ, Riew KD. The prevalence cervical facet arthrosis: an osseous study in a cadveric population.. Spine J 2009 Sep;9(9):711-4.
    doi: 10.1016/j.spinee.2009.04.016pubmed: 19477691google scholar: lookup
  38. Zsoldos RR, Krüger B, Licka TF. From maturity to old age: tasks of daily life require a different muscle use in horses.. Comp Exerc Physiol 2014;10(2):75-88.
    doi: 10.3920/CEP140001pmc: PMC5495164pubmed: 28680481google scholar: lookup
  39. Singh S, Kumar D, Kumar S. Risk factors in cervical spondylosis.. J Clin Orthop Trauma 2014 Dec;5(4):221-6.
    doi: 10.1016/j.jcot.2014.07.007pmc: PMC4264061pubmed: 25983502google scholar: lookup
  40. Zsoldos RR, Groesel M, Kotschwar A, Kotschwar AB, Licka T, Peham C. A preliminary modelling study on the equine cervical spine with inverse kinematics at walk.. Equine Vet J Suppl 2010 Nov;(38):516-22.
  41. Listi GA, Manhein MH. The use of vertebral osteoarthritis and osteophytosis in age estimation.. J Forensic Sci 2012 Nov;57(6):1537-40.
  42. Tischer T, Aktas T, Milz S, Putz RV. Detailed pathological changes of human lumbar facet joints L1-L5 in elderly individuals.. Eur Spine J 2006 Mar;15(3):308-15.
    doi: 10.1007/s00586-005-0958-7pmc: PMC3489294pubmed: 16021481google scholar: lookup
  43. Sleutjens J, Voorhout G, Van Der Kolk JH, Wijnberg ID, Back W. The effect of ex vivo flexion and extension on intervertebral foramina dimensions in the equine cervical spine.. Equine Vet J Suppl 2010 Nov;(38):425-30.
  44. Pagger H, Schmidburg I, Peham C, Licka T. Determination of the stiffness of the equine cervical spine.. Vet J 2010 Dec;186(3):338-41.
    doi: 10.1016/j.tvjl.2009.09.015pubmed: 19850500google scholar: lookup
  45. Pool RR. Pathologic manifestions of joint disease in the athletic horse. Joint disease in the horse 1996;p. 87–104.
  46. van der Kraan PM, van den Berg WB. Osteophytes: relevance and biology.. Osteoarthritis Cartilage 2007 Mar;15(3):237-44.
    doi: 10.1016/j.joca.2006.11.006pubmed: 17204437google scholar: lookup
  47. Erben RG. Trabecular and endocortical bone surfaces in the rat: modeling or remodeling?. Anat Rec 1996 Sep;246(1):39-46.
  48. Langdahl B, Ferrari S, Dempster DW. Bone modeling and remodeling: potential as therapeutic targets for the treatment of osteoporosis.. Ther Adv Musculoskelet Dis 2016 Dec;8(6):225-235.
    doi: 10.1177/1759720X16670154pmc: PMC5322859pubmed: 28255336google scholar: lookup
  49. Neogi T. Clinical significance of bone changes in osteoarthritis.. Ther Adv Musculoskelet Dis 2012 Aug;4(4):259-67.
    doi: 10.1177/1759720X12437354pmc: PMC3403249pubmed: 22859925google scholar: lookup
  50. Reichenbach S, Guermazi A, Niu J, Neogi T, Hunter DJ, Roemer FW, McLennan CE, Hernandez-Molina G, Felson DT. Prevalence of bone attrition on knee radiographs and MRI in a community-based cohort.. Osteoarthritis Cartilage 2008 Sep;16(9):1005-10.
    doi: 10.1016/j.joca.2008.02.001pmc: PMC2683402pubmed: 18367415google scholar: lookup
  51. Burr DB. Anatomy and physiology of the mineralized tissues: role in the pathogenesis of osteoarthrosis.. Osteoarthritis Cartilage 2004;12 Suppl A:S20-30.
    pubmed: 14698637doi: 10.1016/j.joca.2003.09.016google scholar: lookup
  52. Wang M, Nasiri A, VanHouten JN, Tommasini SM, Broadus AE. The remarkable migration of the medial collateral ligament.. J Anat 2014 Apr;224(4):490-8.
    doi: 10.1111/joa.12145pmc: PMC3954274pubmed: 24266550google scholar: lookup
  53. Dörfl J. Migration of tendinous insertions. I. Cause and mechanism.. J Anat 1980 Aug;131(Pt 1):179-95.
    pmc: PMC1233296pubmed: 7440401
  54. Sojka JH, Everhart JS, Kirven JC, Beal MD, Flanigan DC. Variation in tibial tuberosity lateralization and distance from the tibiofemoral joint line: An anatomic study.. Knee 2018 Jun;25(3):367-373.
    doi: 10.1016/j.knee.2018.03.006pubmed: 29681529google scholar: lookup
  55. Benjamin M, Toumi H, Ralphs JR, Bydder G, Best TM, Milz S. Where tendons and ligaments meet bone: attachment sites ('entheses') in relation to exercise and/or mechanical load.. J Anat 2006 Apr;208(4):471-90.
  56. McCarty WJ, Masuda K, Sah RL. Fluid movement and joint capsule strains due to flexion in rabbit knees.. J Biomech 2011 Nov 10;44(16):2761-7.
  57. Haynes DR. Bone lysis and inflammation.. Inflamm Res 2004 Nov;53(11):596-600.
    pubmed: 15693607doi: 10.1007/s00011-004-1303-zgoogle scholar: lookup
  58. Ramasamy SK. Structure and Functions of Blood Vessels and Vascular Niches in Bone.. Stem Cells Int 2017;2017:5046953.
    doi: 10.1155/2017/5046953pmc: PMC5623774pubmed: 29104595google scholar: lookup
  59. Pool RR, Meagher DM, Stover SM. Pathophysiology of navicular syndrome.. Vet Clin North Am Equine Pract 1989 Apr;5(1):109-29.
    pubmed: 2650826doi: 10.1016/s0749-0739(17)30606-5google scholar: lookup
  60. Benjamin M, Rufai A, Ralphs JR. The mechanism of formation of bony spurs (enthesophytes) in the achilles tendon.. Arthritis Rheum 2000 Mar;43(3):576-83.
  61. Slobodin G, Rozenbaum M, Boulman N, Rosner I. Varied presentations of enthesopathy.. Semin Arthritis Rheum 2007 Oct;37(2):119-26.
  62. 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 Feb;41(2):130-8.
    doi: 10.2746/042516408x345099pubmed: 19418740google scholar: lookup
  63. Dippel M, Zsoldos RR, Licka TF. An equine cadaver study investigating the relationship between cervical flexion, nuchal ligament elongation and pressure at the first and second cervical vertebra.. Vet J 2019 Oct;252:105353.
    pubmed: 31554589doi: 10.1016/j.tvjl.2019.105353google scholar: lookup

Citations

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    doi: 10.3390/ani13142384pubmed: 37508161google scholar: lookup
  2. Johnson JP, Vinardell T, David F. Ultrasound-guided injections of the equine head and neck: review and expert opinion. J Equine Sci 2021 Dec;32(4):103-115.
    doi: 10.1294/jes.32.103pubmed: 35023988google scholar: lookup
  3. Story MR, Nout-Lomas YS, Aboellail TA, Selberg KT, Barrett MF, Mcllwraith CW, Haussler KK. Dangerous Behavior and Intractable Axial Skeletal Pain in Performance Horses: A Possible Role for Ganglioneuritis (14 Cases; 2014-2019). Front Vet Sci 2021;8:734218.
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  4. Story MR, Haussler KK, Nout-Lomas YS, Aboellail TA, Kawcak CE, Barrett MF, Frisbie DD, McIlwraith CW. Equine Cervical Pain and Dysfunction: Pathology, Diagnosis and Treatment. Animals (Basel) 2021 Feb 6;11(2).
    doi: 10.3390/ani11020422pubmed: 33562089google scholar: lookup
  5. Nocera I, Di Franco C, Sorvillo B, Aliboni B, Bucchioni E, Sgorbini M, Sala G, Citi S. Evaluation of the feasibility of equine in-vivo ultrasound technique for the medial branch of the dorsal ramus of the cervical spinal nerves. Vet Q 2024 Dec;44(1):1-5.
    doi: 10.1080/01652176.2024.2403456pubmed: 39267500google scholar: lookup
  6. Davidson EJ, Stefanovski D, Slack J, Manzi TJ. Ultrasound-guided caudal cervical articular process arthrocentesis is accurate in live horses with and without arthropathy. Equine Vet J 2025 Mar;57(2):398-405.
    doi: 10.1111/evj.14133pubmed: 38989893google scholar: lookup
  7. Dyson S, Phillips K, Zheng S, Aleman M. Congenital variants of the ventral laminae of the sixth and seventh cervical vertebrae are not associated with clinical signs or other radiological abnormalities of the cervicothoracic region in Warmblood horses. Equine Vet J 2025 Mar;57(2):419-430.
    doi: 10.1111/evj.14127pubmed: 38938125google scholar: lookup