Association between radiographic equine distal phalanx characteristics and absence, presence and type of horseshoes.
Abstract: Most horses are used with horseshoes additionally supported by either dorsoabaxial or dorsal clips. The effects of such clips on bone density and shape of the distal phalanx are currently unclear. The aim of this study was to identify correlations between density and shape of the distal phalanx, comparing front hooves unshod or shod with standard shoes either with two dorsoabaxial clips or with a single dorsal clip. Researchers analyzed Oxspring radiographs of either the left or right front hoof from warmblood horses ( = 137) and ponies ( = 43) aged 3-28 years. The evaluation focused on distal phalanx density at the margo solearis, particularly at three locations corresponding to the clip positions: dorsomedial, dorsal, and dorsolateral. The study examined horse related variables such as age, breed, use, and shoeing type in relation to density parameters, presence of a crena marginalis solearis, an anatomical variation that is an indentation dorsal on the margo solearis, and the shape of the distal phalanx. Distal phalanges of hooves shod with dorsoabaxial clips showed a significantly ( < 0.001) lower width to length ratio (median 1.31, minimum 0.70, maximum 1.66) compared to those with a single dorsal clip (median 1.40, minimum 0.89, maximum 1.75). The width to length ratio of unshod hooves (median 1.37, minimum 0.80, maximum 1.82) was not significantly different from both groups of shod hooves. The results of this study should be considered when selecting horseshoes for equids.
Copyright © 2025 Ennsmann and Licka.
Publication Date: 2025-07-25 PubMed ID: 40786980PubMed Central: PMC12333595DOI: 10.3389/fvets.2025.1598038Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
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 research conducted looks into the impact of different types of horseshoes on the bone density and shape of a horse’s distal phalanx, with specific interest in any correlations. It uses data from radiographs of horses’ hooves and also considers variables like age, breed, and use of the horse.
Research Context and Aim
- This study delves into the impact of different types of horseshoes and clips on a horse’s distal phalanx – the bone within the hoof. The effect that the use of dorsal clips or dorsoabaxial clips has on the bone density and shape of the distal phalanx is not well-understood, despite most horses being fitted with horseshoes supported by one of these clips.
- The objective of the research was to find any correlations between the shape and density of the distal phalanx, and whether the front hooves were unhorsehoed or equipped with standard shoes with either two dorsoabaxial clips or a single dorsal clip.
Methodology
- The researchers carried out an analysis of radiographs (a type of X-ray image) from the front hooves of warmblood horses and ponies aged 3-28 years.
- The evaluation was especially focused on investigating the density of the distal phalanx at the margo solearis in three specific locations, which correspond with the positions of the clips: dorsomedial, dorsal, and dorsolateral.
- In addition, a variety of horse-related factors were considered including age, breed, functionality (use), and the type of shoeing. They analyzed these elements in relation to density parameters, the presence of a crena marginalis solearis (which is an anatomical variation of an indentation at the dorsal on the margo solearis), and the overall shape of the distal phalanx.
Results
- It was discovered that the hooves shod with dorsoabaxial clips had a significantly lower width to length ratio compared to hooves with a single dorsal clip.
- No significant difference was found between the width to length ratio of unshod hooves and both groups of shod hooves.
Implications
- The findings suggest that the type of horseshoe used can influence the shape and density of the distal phalanx in horses. This knowledge could be crucial for vets, farriers, and horse owners when deciding on the best type of horseshoe for a horse’s well-being.
Cite This Article
APA
Ennsmann LH, Licka TF.
(2025).
Association between radiographic equine distal phalanx characteristics and absence, presence and type of horseshoes.
Front Vet Sci, 12, 1598038.
https://doi.org/10.3389/fvets.2025.1598038 Publication
Researcher Affiliations
- Department of Companion Animals and Horses, University Clinic for Horses, University of Veterinary Medicine, Vienna, Austria.
- Department of Companion Animals and Horses, University Clinic for Horses, University of Veterinary Medicine, Vienna, Austria.
- Department of Veterinary Clinical Sciences, Large Animal Hospital, Easter Bush Veterinary Centre, Easter Bush, Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Roslin, Midlothian, United Kingdom.
Conflict of Interest Statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
References
This article includes 94 references
- O’Grady SE, Poupard DA. Proper physiologic horseshoeing. Vet Clin North Am Equine Pract (2003) 19:333–51.
- Andrea E, Floyd RAM. Equine podiatry. Bd. Section V: Farriery considerations Philadelphia PA, London: Elsevier Health Sciences; (2007).
- Pollitt CC. The anatomy and physiology of the suspensory apparatus of the distal phalanx. Vet Clin North Am Equine Pract (2010) 26:29–49.
- Riedesel EA. Chapter 23 the equine phalanges. In: Textbook of veterinary diagnostic radiology-e-book. Elsevier Health Sciences (2012). 429.
- Malone SR, Davies HM. Changes in hoof shape during a seven-week period when horses were shod versus barefoot. Animals (2019) 9:1017.
- Lindner A. Applied equine nutrition. 1st Equine Nutrition Conference (Enuco), London, United Kingdom: Hannover, Germany, (2005).
- Back W, Clayton HM. Equine locomotion. London, United Kingdom: Elsevier Health Sciences; (2013).
- Panagiotopoulou O, Rankin JW, Gatesy SM, Hutchinson JR. A preliminary case study of the effect of shoe-wearing on the biomechanics of a horse’s foot. PeerJ (2016) 4:e2164.
- Willemen M, Savelberg H, Barneveld A. The improvement of the gait quality of sound trotting warmblood horses by normal shoeing and its effect on the load on the lower forelimb. Livest Prod Sci (1997) 52:145–53.
- Huguet EE, Duberstein KJ. Effects of steel and aluminum shoes on forelimb kinematics in stock-type horses as measured at the trot. J Equine Vet Sci (2012) 32:262–7.
- Roepstorff L, Johnston C, Drevemo S. The effect of shoeing on kinetics and kinematics during the stance phase. Equine Vet J (1999) 31:279–85.
- Oomen A, Oosterlinck M, Pille F, Sonneveld D, Gasthuys F, Back W. Use of a pressure plate to analyse the toe–heel load redistribution underneath a normal shoe and a shoe with a wide toe in sound warmblood horses at the walk and trot. Res Vet Sci (2012) 93:1026–31.
- Wilson A, Seelig T, Shield R, Silverman B. The effect of foot imbalance on point of force application in the horse. Equine Vet J (1998) 30:540–5.
- Hinterhofer C, Stanek C, Haider H. Finite element analysis (FEA) as a model to predict effects of farriery on the equine hoof. Equine Vet J (2001) 33:58–62.
- Hinterhofer C, Weißbacher N, Buchner HH, Peham C, Stanek C. Motion analysis of hoof wall, sole and frog under cyclic load in vitro: deformation of the equine hoof shod with regular horse shoe, straight bar shoe and bare hoof. Pferdeheilkd Equine Med (2006) 22:314.
- Al-Agele R, Paul E, Taylor S, Watson C, Sturrock C, Drakopoulos M. Physics of animal health: on the mechano-biology of hoof growth and form. J R Soc Interface (2019) 16:20190214.
- Van Heel M, Van Weeren P, Back W. Shoeing sound warmblood horses with a rolled toe optimises hoof-unrollment and lowers peak loading during breakover. Equine Vet J (2006) 38:258–62.
- Turner T. Shoeing principles for the management of navicular disease in horses. J Am Vet Med Assoc (1986) 189:298–301.
- Eliashar E, McGuigan M, Rogers K, Wilson A. A comparison of three horseshoeing styles on the kinetics of breakover in sound horses. Equine Vet J (2002) 34:184–90.
- Ruthe H, Mueller H, Reinhard F. The hoof, a textbook of shoeing. Fischer (1988).
- Dahl VE, Singer ER, Garcia TC, Hawkins DA, Stover SM. Hoof expansion, deformation, and surface strains vary with horseshoe nail positions. Animals (2023) 13:1872.
- Gunkelman M, Young J, Hammer C. Influence of trimming and shoeing on hoof temperature and digital cushion thickness in mature horses. J Equine Vet Sci (2019) 76:92.
- Clarke B. Normal bone anatomy and physiology. Clin J Am Soc Nephrol (2008) 3:S131–9.
- Pettit AR, Chang MK, Hume DA, Raggatt LJ. Osteal macrophages: a new twist on coupling during bone dynamics. Bone (2008) 43:976–82.
- Milgrom C, Finestone A, Novack V, Pereg D, Goldich Y, Kreiss Y. The effect of prophylactic treatment with risedronate on stress fracture incidence among infantry recruits. Bone (2004) 35:418–24.
- Engiles JB. Pathology of the distal phalanx in equine laminitis: more than just skin deep. Vet Clin Equine Pract (2010) 26:155–65.
- Dyson S. Nonseptic osteitis of the distal phalanx and its palmar processes. Equine Vet Educ (2011) 23:472–85.
- Rendano V. Radiographic interpretation. Pedal osteitis. California Veterinary Medical Association (CalVMA) (1979).
- Laverty S, Stover S, Belanger D, O’Brien T, Pool R, Pascoe J. Radiographic, high detail radiographic, microangiographic and histological findings of the distal portion of the tarsus in weanling, young and adult horses. Equine Vet J (1991) 23:413–21.
- Byfield R, Miller M, Xie Y, Crosby M, Schiltz P, Johnson PJ. Equine life stage classification from photoplethysmography data by an explainable echo state network. Social Science Research Network (SSRN) Available at SSRN 4561261. (2023).
- Redden RF. Radiographic imaging of the equine foot. Vet Clin Equine Pract (2003) 19:379–92, vi.
- Redden RF. Clinical and radiographic examination of the equine foot. American Association of Equine Practitioners (AAEP) (2003).
- Dyson S. Radiological interpretation of the navicular bone. Equine Vet Educ (2011) 23:73–87.
- Kane AJ, Stover SM, Gardner IA, Bock KB, Case JT, Johnson BJ. Hoof size, shape, and balance as possible risk factors for catastrophic musculoskeletal injury of thoroughbred racehorses. Am J Vet Res (1998) 59:1545.
- Dyson SJ, Tranquille CA, Collins SN, Parkin TDH, Murray RC. An investigation of the relationships between angles and shapes of the hoof capsule and the distal phalanx. Equine Vet J (2011) 43:295–301.
- Dorner C. Relationship between the distal phalanx angle and radiographic changes in the navicular bone of horses: a radiological study. Glob J Med Res (2017) 17:7–13.
- Cripps PJ, Eustace RA. Radiological measurements from the feet of normal horses with relevance to laminitis. Equine Vet J (1999) 31:427–32.
- Mullard J, Ireland J, Dyson S. Radiographic assessment of the ratio of the hoof wall distal phalanx distance to palmar length of the distal phalanx in 415 front feet of 279 horses. Equine Vet Educ (2020) 32:2–10.
- Aoun R, Charles I, DeRouen A, Takawira C, Lopez MJ. Shoe configuration effects on third phalanx and capsule motion of unaffected and laminitic equine hooves in-situ. PLoS One (2023) 18:e0285475.
- Vassar M, Matthew H. The retrospective chart review: important methodological considerations. J Educ Eval Health Prof (2013) 10:10.
- Burd M, Craig J, Craig M. The palmar metric: a novel radiographic assessment of the equine distal phalanx. Open Vet J (2014) 4:78–81.
- Komosa M, Purzyc H, Fraackowiak H. Changes in navicular bone (os sesamoideum distale) shape in horses as a result of pathological alterations. Folia Biol (Krakow) (2013) 61:1–10.
- Engiles J, Galantino-Homer H, Boston R, McDonald D, Dishowitz M, Hankenson K. Osteopathology in the equine distal phalanx associated with the development and progression of laminitis. Vet Pathol (2015) 52:928–44.
- Every L, Hostnik E, Hostnik L, Yardley J, Shore-Khirallah A, Thompson A. Radiographic tracheal lumen to vertebral ratios in the normal American miniature horse. Equine Vet J (2020) 52:428–34.
- Herthel D, Hood DM. Clinical presentation, diagnosis, and prognosis of chronic laminitis. Vet Clin North Am Equine Pract (1999) 15:375–94.
- Linford RL, O’Brien TR, Trout DR. Qualitative and morphometric radiographic findings in the distal phalanx and digital soft tissues of sound thoroughbred racehorses. Am J Vet Res (1993) 54:38–51.
- Reiser V, Reiser A, Licka TF. Radiological features of arterial channels in the equine third phalanx measured using a novel customized software represent changes of laminitis. Am J Vet Res (2024) 85:2–4.
- Esselman AM, Johnson SA, Frisbie DD, Barrett MF, Zhou T, Contino EK. Substantial variability exists in the interpretation of survey radiographs among equine veterinarians. Equine Vet J (2025) 57:169–82.
- Keppie NJ, Rosenstein DS, Holcombe SJ, Schott HC II. Objective radiographic assesment abdominal sand accumulation in horses. Vet Radiol Ultrasound (2008) 49:122–8.
- Zalig V, Vengust M, Blagus R, Berner D, Sandow C, Hanna A. The difference in radiographic findings in the distal limbs of working Lipizzan horses, used for dressage or driving. Frontiers in veterinary. Science (2024) 11:1393325.
- Hennessey E, DiFazio M, Hennessey R, Cassel N. Artificial intelligence in veterinary diagnostic imaging: a literature review. Vet Radiol Ultrasound (2022) 63:851–70.
- Lacitignola L, Imperante A, Staffieri F, De Siena R, Luca P, Muci A. Assessment of intra-and inter-observer measurement variability in a radiographic metacarpophalangeal joint osteophytosis scoring system for the horse. Vet Sci (2020) 7:39.
- Arturo G, Schwarz GS. Magnification of radiographic images in clinical roentgenology and its present-day limit. Radiology (1952) 59:866–78.
- Carstens A, Kirberger RM, Grimbeek RJ, Donnellan CMB, Saulez MN. Radiographic quantification of tracheal dimensions of the normal thoroughbred horse. Vet Radiol Ultrasound (2009) 50:492–501.
- Larsen CD, Wilkinson TE, Roberts GD, Guess SC, Mattoon JS, Sanz MG. Radiographic analysis of the dorsal hoof wall thickness in clinically normal draft horses. Am J Vet Res (2024) 85:2.
- Ulum MF, Noviana D. Radiographic measurement of cardiac size in laboratory mice. ARSHI Vet Lett (2018) 2:19–20.
- Vaccaro C, Busetto R, Bernardini D, Anselmi C, Zotti A. Accuracy and precision of computer-assisted analysis of bone density via conventional and digital radiography in relation to dual-energy x-ray absorptiometry. Am J Vet Res (2012) 73:381–4.
- Trouerbach WT, Steen W, Zwamborn A, Schouten H. A study of the radiographic aluminum equivalent values of the mandible. Oral Surg Oral Med Oral Pathol (1984) 58:610–6.
- Secombe C, Firth E, Perkins N, Bailey D, Anderson B. The quantitative assessment of photodensity of the third carpal bone in the horse. N Z Vet J (2004) 52:70–5.
- Strand E, Braathen LC, Hellsten MC, Huse-Olsen L, Bjornsdottir S. Radiographic closure time of appendicular growth plates in the Icelandic horse. Acta Vet Scand (2007) 49:1–7.
- Dik K, Avan B, Den Broek J. Relationships of age and shape of the navicular bone to the development of navicular disease: a radiological study. Equine Vet J (2001) 33:172–5.
- Logan AA, Nielsen BD. Training young horses: the science behind the benefits. Animals (2021) 11:463.
- Clarke EJ, Gillen A, Turlo A, Peffers MJ. An evaluation of current preventative measures used in equine practice to maintain distal forelimb functionality: a Mini review. Front Vet Sci (2021) 8:758970.
- Tabor G, Williams J, Elliott A. A comparison of back flexibility in show jumping, dressage and leisure horses. Guelph, Ontario, Canada: International Society for Equitation Science; (2019). 45 p..
- Brudňaková M, Filipčík R, Kopec T, Pešan V. Analyses of the performance of show jumping and dressage horses on the world level. Social Science Research Network (SSRN) (2023) Available at SSRN 4415565.
- Rovere G, Ducro B, Van Arendonk J, Norberg E, Madsen P. Analysis of competition performance in dressage and show jumping of Dutch warmblood horses. J Anim Breed Genet (2016) 133:503–12.
- Burn J, Brockington C. Quantification of hoof deformation using optical motion capture. Equine Vet J (2001) 33:50–3.
- Douglas J, Mittal C, Thomason J, Jofriet J. The modulus of elasticity of equine hoof wall: implications for the mechanical function of the hoof. J Exp Biol (1996) 199:1829–36.
- Lancaster LS, Bowker RM, Mauer WA. Equine hoof wall tubule density and morphology. J Vet Med Sci (2013) 75:773–8.
- Price J, Jackson B, Eastell R, Wilson A, Russell R, Lanyon L. The response of the skeleton to physical training: a biochemical study in horses. Bone (1995) 17:221–7.
- Gorissen BMC, Wolschrijn CF, van Vilsteren AAM, van Rietbergen B, van Weeren PR. Trabecular bone of precocials at birth; are they prepared to run for the wolf(f)?. J Morphol (2016) 277:948–56.
- Johnson KA. Wolff’s law continues to inspire orthopaedic research. Vet Comp Orthop Traumatol (2014) 27:V–VI.
- Bentley VA, Sample SJ, Livesey MA, Scollay MC, Radtke CL, Frank JD. Morphologic changes associated with functional adaptation of the navicular bone of horses. J Anat (2007) 211:662–72.
- Soysa NS, Alles N. Positive and negative regulators of osteoclast apoptosis. Bone Rep (2019) 11:100225.
- Cenci S, Weitzmann MN, Roggia C, Namba N, Novack D, Woodring J. Estrogen deficiency induces bone loss by enhancing T-cell production of TNF-α. J Clin Invest (2000) 106:1229–37.
- Robling AG, Turner CH. Mechanical signaling for bone modeling and remodeling. Crit Rev Eukaryot Gene Expr (2009) 19:319–338.
- Sims NA, Martin TJ. Coupling the activities of bone formation and resorption: a multitude of signals within the basic multicellular unit. BoneKEy Rep (2014) 3:3.
- Matcuk GR, Learch TJ, Keesara SR. Chronic circumferential periostitis of proximal phalanges related to tight fitting rings. Emerg Radiol (2006) 13:89–93.
- Singh B, Dyce KM. Dyce, sack, and Wensing’s textbook of veterinary anatomy. Fifth ed. St. Louis, Missouri: Saunders; (2018) Textbook of veterinary anatomy.
- Budras KD. Anatomy of the horse. 5th ed. Hannover: Schlütersche; (2009).
- Sisson S, Getty R, Grossman JD. Sisson and Grossman’s the anatomy of the domestic animals. In: Getty R, editor. 5th ed. Philadelphia: Saunders; (1975) Anatomy of the domestic animals.
- Ross M, Dyson S. Diagnosis and management of lameness in the horse. Elsevier Saunders (2011).
- O’Grady SE, Poupard DA. Physiological horseshoeing: an overview. Equine Vet Educ (2001) 13:330–4.
- Fretz P. The equine distal limb: an atlas of clinical anatomy and comparative imaging. Can Vet J The Canadian veterinary journal (2002) 43.
- Stachurska A, Kolstrung R, Pieta M, Silmanowicz P, Klimorowska A. Differentiation between fore and hind hoof dimensions in the horse. Arch Anim Breed (2008) 51:531–40.
- Dutto DJ, Hoyt DF, Cogger EA, Wickler SJ. Ground reaction forces in horses trotting up an incline and on the level over a range of speeds. J Exp Biol (2004) 207:3507–14.
- Back W, Schamhardt HC, Hartman W, Barneveld A. Kinematic differences between the distal portions of the forelimbs and hind limbs of horses at the trot. Am J Vet Res (1995) 56:1522–8.
- Imamura K, Ozawa H, Hiraide T, Shibasaki Y, Fukuhara T, Takahashi N. Continuously applied compressive pressure induces bone resorption by a mechanism involving prostaglandin E2 synthesis. J Cell Physiol (1990) 144:222–8.
- Fahlgren A, Bostrom MP, Yang X, Johansson L, Edlund U, Agholme F. Fluid pressure and flow as a cause of bone resorption. Acta Orthop (2010) 81:508–16.
- Firth EC. The response of bone, articular cartilage and tendon to exercise in the horse. J Anat (2006) 208:513–26.
- Balch OK, Butler D, White KL, Metcalf SL. Hoof balance and lameness: improper toe length, hoof angle, and mediolateral balance. Compend Contin Educ Vet (1995) 17:1275–1283.
- Fradinho MJ, Mateus L, Bernardes N, Bessa RJ, Caldeira RM, Ferreira-Dias G. Growth patterns, metabolic indicators and osteoarticular status in the Lusitano horse: a longitudinal study. PLoS One (2019) 14:e0219900.
- Holloway WR, Collier FM, Aitken CJ, Myers DE, Hodge JM, Malakellis M. Leptin inhibits osteoclast generation. J Bone Miner Res (2002) 17:200–9.
- Gündemir O, Szara T, Pazvant G, Erdikmen DO, Duro S, Perez W. Radiogrametric analysis of the thoracic limb phalanges in Arabian horses and thoroughbred horses. Animals (2021) 11:2205.
Citations
This article has been cited 0 times.Use Nutrition Calculator
Check if your horse's diet meets their nutrition requirements with our easy-to-use tool Check your horse's diet with our easy-to-use tool
Talk to a Nutritionist
Discuss your horse's feeding plan with our experts over a free phone consultation Discuss your horse's diet over a phone consultation
Submit Diet Evaluation
Get a customized feeding plan for your horse formulated by our equine nutritionists Get a custom feeding plan formulated by our nutritionists