A technique for computed tomography (CT) of the foot in the standing horse

Desbrosse, Francis; Vandeweerd, Jean-Michel; Perrin, Roland; Clegg, Peter; Launois, M. T.; Brogniez, Laurent; Gehin, Sophie

doi:10.2746/095777308x272085

Cited by 32 publications

(55 citation statements)

References 17 publications

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“…The locations of periosteal callus that bridged the fractures in Quarter Horses in the study reported here are consistent with locations in Thoroughbreds reported elsewhere. 52,53 Rehabilitation of affected horses is likely to result in a return to full performance. Index of suspicion should be high for characteristic locations of stress remodeling lesions within bones.…”

Section: Discussionmentioning

confidence: 99%

Fatal musculoskeletal injuries of Quarter Horse racehorses: 314 cases (1990–2007)

Sarrafian¹,

Case²,

Kinde³

et al. 2012

javma

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Section: Discussionmentioning

confidence: 99%

Fatal musculoskeletal injuries of Quarter Horse racehorses: 314 cases (1990–2007)

Sarrafian¹,

Case²,

Kinde³

et al. 2012

javma

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“…However, CT scanning of the foot in the standing horse using a gantry in a horizontal orientation has been performed [33]. Results of the present study suggest that this approach to equine CT imaging needs to be expanded to include the fetlock.…”

Section: Discussionmentioning

confidence: 97%

Computed Tomographic Imaging of Subchondral Fatigue Cracks in the Distal End of the Third Metacarpal Bone in the Thoroughbred Racehorse Can Predict Crack Micromotion in an Ex-Vivo Model

et al. 2014

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Articular stress fracture arising from the distal end of the third metacarpal bone (MC3) is a common serious injury in Thoroughbred racehorses. Currently, there is no method for predicting fracture risk clinically. We describe an ex-vivo biomechanical model in which we measured subchondral crack micromotion under compressive loading that modeled high speed running. Using this model, we determined the relationship between subchondral crack dimensions measured using computed tomography (CT) and crack micromotion. Thoracic limbs from 40 Thoroughbred racehorses that had sustained a catastrophic injury were studied. Limbs were radiographed and examined using CT. Parasagittal subchondral fatigue crack dimensions were measured on CT images using image analysis software. MC3 bones with fatigue cracks were tested using five cycles of compressive loading at -7,500N (38 condyles, 18 horses). Crack motion was recorded using an extensometer. Mechanical testing was validated using bones with 3 mm and 5 mm deep parasagittal subchondral slots that modeled naturally occurring fatigue cracks. After testing, subchondral crack density was determined histologically. Creation of parasagittal subchondral slots induced significant micromotion during loading (p<0.001). In our biomechanical model, we found a significant positive correlation between extensometer micromotion and parasagittal crack area derived from reconstructed CT images (SR = 0.32, p<0.05). Correlations with transverse and frontal plane crack lengths were not significant. Histologic fatigue damage was not significantly correlated with crack dimensions determined by CT or extensometer micromotion. Bones with parasagittal crack area measurements above 30 mm2 may have a high risk of crack propagation and condylar fracture in vivo because of crack micromotion. In conclusion, our results suggest that CT could be used to quantify subchondral fatigue crack dimensions in racing Thoroughbred horses in-vivo to assess risk of condylar fracture. Horses with parasagittal crack arrays that exceed 30 mm2 may have a high risk for development of condylar fracture.

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“…Preservations of flexible models of hollow organs and many dried anatomical specimens were prepared (Arnautovic et al, 2005;McKiernan & Kneller, 1983;Updike & Holladay, 1986). Many studies to learning sectional anatomy by computed tomography (CT), magnetic resonance imaging (MRI), contrast radiography, ultrasonography and cadaver sectional anatomy (Alsafy et al, 2013(Alsafy et al, , 2014Alsafy, 2008;Desbrosse et al, 2008;Garland et al, 2002;Morgan et al, 2006;Puchalski, 2012 Table I. Percentages of student's perception of the educational design and content (Q1-Q10) as well as overall perception of Equine Anatopedia (Q11-Q20).…”

Section: Discussionmentioning

confidence: 99%

Equine Anatomedia: Development, Integration and Evaluation of an E-Learning Resource in Applied Veterinary Anatomy

2015

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SUMMARY:In Egypt, there is a growing movement to encourage veterinary student-centered learning using the most up to date educational technologies. This paper focuses on a computer-facilitated learning program "Equine Anatomedia", which comprises now two modules (head and digit) fully integrated with the applied anatomy curriculum at Alexandria and Damanhour Universities. The educational design of this program allows students and clinicians to explore anatomical concepts, principles and procedure guidelines in a manner more suited to their individual learning needs than traditional methods. The program comprises over 300 high quality images and diagrams, audio and video clips as well as animated graphics with colored keys highlighting the anatomical features. Staff and student feedback indicates that Equine Anatomedia is an effective and engaging learning tool which helps students to develop their knowledge in anatomy and to appreciate its relevance in clinical situations. In addition, it encourages student-staff interaction and is a useful tool in overcoming the challenges of limited resources and increasing numbers of students.

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A technique for computed tomography (CT) of the foot in the standing horse

Cited by 32 publications

References 17 publications

Fatal musculoskeletal injuries of Quarter Horse racehorses: 314 cases (1990–2007)

Fatal musculoskeletal injuries of Quarter Horse racehorses: 314 cases (1990–2007)

Computed Tomographic Imaging of Subchondral Fatigue Cracks in the Distal End of the Third Metacarpal Bone in the Thoroughbred Racehorse Can Predict Crack Micromotion in an Ex-Vivo Model

Equine Anatomedia: Development, Integration and Evaluation of an E-Learning Resource in Applied Veterinary Anatomy

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