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Equine veterinary journal1993; 25(1); 61-64; doi: 10.1111/j.2042-3306.1993.tb02903.x

A retrospective evaluation of laminitis in horses.

Abstract: Case records of 202 horses treated for laminitis were reviewed with the intent of determining the long-term outcome and correlating this with digital radiographic findings and with the degree of pain associated with the laminitis. At long-term follow-up 57 horses had returned to athletic soundness (Group 1), 20 horses were intermittently lame (Group 2), 19 horses had permanent severe lameness (Group 3), 97 were dead (Group 4), and 9 were lost to follow up. Using simple regression analysis, functional outcome did not correlate with the degree of rotation (R2 = 0.004) or the presence of distal displacement (R2 = 0.139). Functional outcome did correlate with the clinical grade of laminitis (R2 = 0.504). Horses in Group 1 had significantly less distal phalangeal rotation (5.89 +/- 6.48 degrees) than did horses in Group 2 (11.10 +/- 8.19) and Group 3 (14.50 +/- 10.80), but were not significantly different from Group 4 horses (7.49 +/- 6.57). Of 96 surviving horses, 23 had evidence of distal displacement compared with 54 of 97 non-survivors. Based on these results, horses that develop distal displacement of the distal phalanx are more likely to die than are horses without distal displacement; however, the presence or absence of distal phalangeal displacement and the degree of distal phalangeal rotation cannot be used to predict the outcome of a horse with laminitis. Clinical assessment is a more reliable means of determining the final outcome and should be given precedence over radiographic findings.
Publication Date: 1993-01-01 PubMed ID: 8422888DOI: 10.1111/j.2042-3306.1993.tb02903.xGoogle Scholar: Lookup
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  • Journal Article

Summary

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This research article studies the long-term outcomes and potential correlations of laminitis in horses, an inflammation of tissues inside the hoof. The researchers analyze data from 202 treated horses, finding that a clinical assessment of laminitis is more reliable in determining the likely outcome than radiographic findings.

The Study and Its Classification

  • This retrospective study examined case records of 202 horses that have been treated for laminitis, an inflammation condition of the tissues in the horse’s hooves.
  • The objective of the investigation was to understand the long-term effects of the condition and conduct a comparative analysis with the horses’ digital radiographic findings and the level of pain associated with the laminitis.
  • As per the long-term aftermath, the horses were categorized into five groups: Group 1 involves horses that returned to being sound athletes, Group 2 consists of horses that were intermittently lame, Group 3 includes horses with permanent severe lameness, Group 4 represents horses that did not survive, and Group 5 includes horses that were lost to follow up.

Results and Conclusions

  • Analyzing the results, the researchers found a non-significant correlation between the functional outcome of the horses and the degree of phalangeal rotation or the presence of distal displacement.
  • However, the functional outcome did show a correlation with the clinical grade of laminitis.
  • Horses in Group 1 had considerably lesser distal phalangeal rotation than horses in Group 2 and Group 3, though the difference was insignificant with the horses in Group 4.
  • Comparing survivors and non-survivors, the study found that of the 96 surviving horses, less had evidence of distal displacement than the non-surviving horses (54 of 97 non-survivors).
  • Based on these results, the researchers concluded that horses that develop distal displacement of the distal phalanx are more likely to not survive than horses without distal displacement.
    Regardless, the presence or absence of distal phalangeal displacement and the degree of distal phalangeal rotation were not reliable indicators to predict the outcome of a horse with laminitis.
  • The study emphasizes the reliability of clinical assessments over radiographic findings when it comes to determining the eventual outcome.

Cite This Article

APA
Hunt RJ. (1993). A retrospective evaluation of laminitis in horses. Equine Vet J, 25(1), 61-64. https://doi.org/10.1111/j.2042-3306.1993.tb02903.x

Publication

ISSN: 0425-1644
NlmUniqueID: 0173320
Country: United States
Language: English
Volume: 25
Issue: 1
Pages: 61-64

Researcher Affiliations

Hunt, R J
  • Department of Large Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602.

MeSH Terms

  • Animals
  • Female
  • Follow-Up Studies
  • Foot Diseases / mortality
  • Foot Diseases / physiopathology
  • Foot Diseases / therapy
  • Foot Diseases / veterinary
  • Hoof and Claw
  • Horse Diseases / mortality
  • Horse Diseases / physiopathology
  • Horse Diseases / therapy
  • Horses
  • Lameness, Animal / mortality
  • Lameness, Animal / physiopathology
  • Lameness, Animal / therapy
  • Male
  • Morbidity
  • Regression Analysis
  • Retrospective Studies
  • Treatment Outcome

Citations

This article has been cited 7 times.
  1. Walshe N, Cabrera-Rubio R, Collins R, Puggioni A, Gath V, Crispie F, Cotter PD, Brennan L, Mulcahy G, Duggan V. A Multiomic Approach to Investigate the Effects of a Weight Loss Program on the Intestinal Health of Overweight Horses. Front Vet Sci 2021;8:668120.
    doi: 10.3389/fvets.2021.668120pubmed: 34222398google scholar: lookup
  2. Lee D, May K, Faramarzi B. Comparison of first and second acupuncture treatments in horses with chronic laminitis. Iran J Vet Res 2019 Winter;20(1):9-12.
    pubmed: 31191693
  3. Faramarzi B, Lee D, May K, Dong F. Response to acupuncture treatment in horses with chronic laminitis. Can Vet J 2017 Aug;58(8):823-827.
    pubmed: 28761187
  4. Orsini JA, Parsons CS, Capewell L, Smith G. Prognostic indicators of poor outcome in horses with laminitis at a tertiary care hospital. Can Vet J 2010 Jun;51(6):623-8.
    pubmed: 20808574
  5. Hargitaiova K, Maleas G. High-metacarpal deep digital flexor tenotomy and Steward clog shoeing for managing chronic refractory laminitis: A retrospective clinical study. Vet Surg 2026 Jan;55(1):236-247.
    doi: 10.1111/vsu.70068pubmed: 41392305google scholar: lookup
  6. Espinosa-López EM, Ortiz-Guisado B, Diez de Castro E, Durham A, Aguilera-Tejero E, Gómez-Baena G. Quantitative proteomics unveils potential plasma biomarkers and provides insights into the pathophysiological mechanisms underlying equine metabolic syndrome. BMC Vet Res 2025 Jul 2;21(1):425.
    doi: 10.1186/s12917-025-04879-6pubmed: 40604814google scholar: lookup
  7. Guedes JRB, Vendruscolo CP, Tokawa PKA, Carvalho AM, Johnson PJ, Faleiros RR. The Detection of Thoracolumbar Spine Injuries in Horses with Chronic Laminitis Using a Novel Clinical-Assessment Protocol and Ultrasonographic Examination. Animals (Basel) 2024 Apr 30;14(9).
    doi: 10.3390/ani14091364pubmed: 38731368google scholar: lookup