Scintigraphic evaluation of fractures of the distal phalanx in horses: 27 cases (1979-1988).
Abstract: Retrospective radiographic and scintigraphic analyses were performed on 27 fractures of the distal phalanx in 25 horses. Location of 99mtechnetium methylene diphosphonate (99mTc-MDP) uptake was compared with fracture line location as seen on radiography. Intensity (intense, moderate, mild) and pattern (focal, diffuse) of 99mTc-MDP uptake was recorded and compared with duration of fracture. Nine horses were monitored during convalescence by obtaining additional scintigraphic views 3 to 68 months after injury. Palmar scintigraphic views had evidence of focal areas of increased 99mTc-MDP uptake that corresponded to fracture line location as seen on radiography. Lateral scintigraphic views had evidence of diffuse increased uptake. There was a significant (P < 0.01) association between duration of fracture and intensity of uptake, with fractures < 3 months in duration more likely to have intense focal uptake. All fractures < 10 days in duration had intense focal uptake. As fracture age increased, 99mTc-MDP uptake became less intense and more diffuse. Three fractures not evident on radiography had evidence of 99mTc-MDP uptake on scintigraphy. Stall rest resulted in decreased 99mTc-MDP uptake in 6 of 9 horses, but increased uptake was still visible in all horses between 4 and 25 months after injury. The only scintigraphic view without evidence of increased uptake was that obtained from a horse reexamined 68 months after injury.
Publication Date: 1993-06-15 PubMed ID: 8360095
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- Journal Article
Summary
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This research examined fractures of the distal phalanx in horses using retrospective radiographic and scintigraphic analyses. The study revealed a correlation between fracture duration and intensity of 99mtechnetium methylene diphosphonate (99mTc-MDP) uptake, with more recent fractures showing more intense uptake and discontinued use of the affected area resulting in decreased 99mTc-MDP uptake over time.
Methodology
- The study involved retrospective radiographic and scintigraphic analyses of 27 fractures of the distal phalanx in 25 horses.
- Breaks were identified using 99mtechnetium methylene diphosphonate (99mTc-MDP), and its uptake location was compared with the location of the fracture line as seen on radiography.
- The intensity (intense, moderate, mild) and pattern (focal, diffuse) of 99mTc-MDP uptake was documented and compared with the fracture period.
- 9 of the horses were observed during their convalescence by acquiring extra scintigraphic views 3 to 68 months after injury.
Findings
- Palmar scintigraphic views showed evidence of focal areas of increased 99mTc-MDP uptake that matched the fracture line position as seen on radiography.
- There was a significant (P < 0.01) correlation between fracture duration and uptake intensity, with fractures less than 3 months old more likely to possess intense focal uptake.
- All breaks less than 10 days old had intense focal uptake. As the fracture age increased, 99mTc-MDP uptake became less intense and more diffuse.
- Incidentally, three fractures that couldn’t be seen on radiography were identifiable through 99mTc-MDP uptake on scintigraphy.
- Resting in stall resulted in decreased 99mTc-MDP uptake in 6 out of the 9 horses. However, even after discontinuing use of the affected area, increased uptake was still evident in all horses between 4 and 25 months after injury.
- The only scintigraphic view without any evidence of increased uptake was that taken from a horse scrutinized 68 months after injury.
Cite This Article
APA
Keegan KG, Twardock AR, Losonsky JM, Baker GJ.
(1993).
Scintigraphic evaluation of fractures of the distal phalanx in horses: 27 cases (1979-1988).
J Am Vet Med Assoc, 202(12), 1993-1997.
Publication
Researcher Affiliations
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana 61801.
MeSH Terms
- Animals
- Female
- Foot Deformities / diagnostic imaging
- Foot Deformities / veterinary
- Fractures, Bone / diagnostic imaging
- Fractures, Bone / veterinary
- Horses / injuries
- Male
- Radionuclide Imaging
- Retrospective Studies
Citations
This article has been cited 3 times.- Walker L, Martinelli MJ, Rantanen N, Drumond B, Trostle S. Attenuation From Shoes and Pads in Equine Nuclear Scintigraphy, With Relevance to Solar Views. Front Vet Sci 2020;7:516718.
- Mizobe F, Nomura M, Kanai K, Ishikawa Y, Yamada K. Standing magnetic resonance imaging of distal phalanx fractures in 6 cases of Thoroughbred racehorse. J Vet Med Sci 2019 May 11;81(5):689-693.
- Yamada K, Araki M, Tokushige H, Fujiki R, Sakai S, Tateno O, Mashita S, Kusano K. Experience of using water-dispersed paper bedding for equine scintigraphy. J Equine Sci 2018 Dec;29(4):105-109.
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