Subscribe to RSS
Download PDF
DOI: 10.3415/VCOT-10-03-0037
Association between navicular bone fragmentation and shape in Belgian Warmblood horses
Publication History
Received:
13 March 2010
Accepted:
19 January 2010
Publication Date:
19 December 2017 (online)
Summary
Objectives: To investigate whether in navicular bones (NB) from warmbloods, distal border fragmentation is associated with the shape of the proximal articular border or other radiological findings.
Methods: Radiographs of the front feet of 325 normal, subadult horses presented for admission as breeding stallions were reviewed.
Results: The proximal articular border of the total of 650 NB was classified as straight (n = 278), convex (n = 184), undulating (n = 147) or concave (n = 41). Distal border fragments were present in 57 NB (8.8%). They were significantly more prevalent in NB with a concave (9/41; 22%) or undulating (19/147; 13%) proximal articular border compared to NB with a straight (17/278; 6%) or convex shape (12/184; 7%). No other significant associations were found.
Clinical significance: Hypothetically, since a shape-fragment association was found and the distribution of biomechanical forces exerted on the navicular bone are assumed to be shape dependent, distal border fragments may be a result of unfavourable loading of the navicular region.
-
References
- 1 Hickman J. Navicular disease – what are we talking about?. Equine Vet J 1989; 21: 395-398.
- 2 Wright IM. A study of 118 cases of navicular disease: clinical features. Equine Vet J 1993; 25: 488-492.
- 3 Dyson S, Murray R, Blunden T. et al. Current concepts of navicular disease. Equine Vet Educ 2006; 18: 45-56.
- 4 Dyson S, Murray R. Magnetic resonance imaging evaluation of 264 horses with foot pain: The podotrochlear apparatus, deep digital flexor tendon and collateral ligaments of the distal interphalangeal joint. Equine Vet J 2007; 39: 340-343.
- 5 Wright IM, Kidd L, Thorp BH. Gross, histologic and histomorphometric features of the navicular bone and related structures in the horse. Equine Vet J 1998; 30: 220-234.
- 6 Blunden A, Dyson S, Murray R. et al. Histopathology in horses with chronic palmar foot pain and age-matched controls. Part 2: The deep digital flex-or tendon. Equine Vet J 2006; 38: 23-27.
- 7 Wright IM. A study of 118 cases of navicular disease: radiological features. Equine Vet J 1993; 25: 493-500.
- 8 Dik KJ. Diagnostische beeldvorming. In: Sloet van Oldruitenborgh-Oosterbaan MM, Barneveld A, Van Den Belt AJ, editors. De Veterinaire Keuring van het Paard. Leeuwarden: Libre BV; 2007: 85-105.
- 9 Poulos PW, Brown A, Brown E. et al. On navicular disease in the horse. Vet Radiol 1989; 30: 54-58.
- 10 Butler JA, Colles CM, Dyson SJ. et al. In: Butler JA, Colles CM, Dyson SJ. et al. editors. Clinical Radiology of the Horse. 2nd ed. Oxford, UK: Blackwell Science; 2000: 21-130.
- 11 Dyson S. Radiological interpretation of the navicular bone. Equine Vet Educ 2008; 20: 268-280.
- 12 Blunden A, Dyson S, Murray R. et al. Histopathology in horses with chronic palmar foot pain and age-matched controls. Part 1: Navicular bone and related structures. Equine Vet J 2006; 38: 15-22.
- 13 Kaser-Hotz B, Ueltschi G. Radiographic appearance of the navicular bone in sound horses. Vet Radiol Ultrasound 1992; 33: 9-17.
- 14 Wright IM, Douglas J. Biomechanical considerations in the treatment of navicular disease. Vet Rec 1993; 31: 109-114.
- 15 Wilson AM, McGuigan MP, Fouracre L. et al. The force and contact stress on the navicular bone during trot locomotion in sound horses and horses with navicular disease. Equine Vet J 2001; 33: 159-165.
- 16 McGuigan MP, Wilson AM. The effect of bilateral palmar digital nerve analgesia on the compressive force experienced by the navicular bone in horses with navicular disease. Equine Vet J 2001; 33: 166-171.
- 17 Weaver MP, Shaw DJ, Munaiwa G. et al. Pressure distribution between the deep digital flexor tendon and the navicular bone, and the effect of raising the heels in vitro. Vet Comp Orthop Traumatol 2009; 22: 278-282.
- 18 Rijkenhuizen ABM. Navicular disease: a review of what's new. Equine Vet J 2006; 38: 82-88.
- 19 Dik KJ, van den Belt AJM, Enzerink E. et al. The radiographic development of the distal and proximal double contours of the equine navicular bone on dorsoproximal-palmarodistal oblique (upright pedal) radiographs, from age 1 to 11 months. Equine Vet J 2001; 33: 70-74.
- 20 Dik KJ, van den Broek J. Role of navicular bone shape in the pathogenesis of navicular disease: a radiological study. Equine Vet J 1995; 27: 390-393.