Factors associated with racing performance of Thoroughbreds undergoing lag screw repair of condylar fractures of the third metacarpal or metatarsal bone

Martin, George S.

doi:10.2460/javma.2000.217.1870

Cited by 29 publications

(63 citation statements)

References 13 publications

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“…Earnings may also be heavily influenced by tactics [5,6]. Furthermore, earnings normally decline with age as younger animals have age-restricted race entry opportunities and supplemented purses [15,23,24], and sex has a strong influence, with entire males having increased potential earnings levels due to their worth to the TB breeding industry [13,14]. Consideration of the advantages of the commonly used outcome measures identified that no measure was ideal, with the highest scoring measures only achieving around half of the 15 specified criteria.…”

Section: Discussionmentioning

confidence: 99%

A systematic literature search to identify performance measure outcomes used in clinical studies of racehorses

Wylie

Newton

2017

Equine Veterinary Journal

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Performance indices have been developed to improve assessment of interventions; however, they are not widely adopted in the scientific literature. Use of the two most commonly identified measures, whether the horse returned to racing and number of starts over a defined period of time, would best facilitate future systematic reviews and meta-analyses in advance of the development of a gold-standard measure of race performance outcome.

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Section: Discussionmentioning

confidence: 99%

A systematic literature search to identify performance measure outcomes used in clinical studies of racehorses

Wylie

Newton

2017

Equine Veterinary Journal

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“…Cast was removed within 24 h after recovery in 21 cases (81%). Horses were hospitalised for an average of 6 days after fracture fixation. The mean time between fracture repair and screw removal was 14 weeks [10–36].…”

Section: Resultsmentioning

confidence: 99%

Surgical repair of propagating condylar fractures of the third metacarpal/metatarsal bones with cortical screws placed in lag fashion in 26 racehorses (2007–2015)

Moulin

François

Côté³

et al. 2018

Equine Veterinary Journal

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“…Horses with non-displaced fractures were 17 times more likely to resume racing than horses with displaced fractures after treatment with lag-screw fixation (Martin 2000). Similar fracture configurations may carry a better prognosis if found in the Mt3 rather than Mc3 (Bassage and Richardson 1998).…”

Section: 8 3 Treatment and Outcomementioning

confidence: 99%

Calcified tissue structure in the distal condyle of the third metacarpal bone in young Thoroughbred horses

Doube¹

2017

Preprint

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Aims: To determine improvements in third metacarpal (Mc3) condylar microanatomy attributable to preconditioning exercise. To investigate developmental causes of Mc3 condylar fracture.Methods: Twelve Thoroughbred horses were raised at pasture; six received preconditioning exercise from 10 days. Calcein labels were administered 19 and 11 days prior to euthanasia at 18 months. Six horses also received 2 seasons of race-training and were euthanised at 3 years. Slices were taken from the distal Mc3 condyle in the frontal and dorsal-and palmar-oblique frontal planes, scanned with DXA and macerated (frontal slices) or embedded in PMMA (oblique slices).Articular calcified cartilage (ACC) and subchondral bone (SCB) in oblique slices were imaged using confocal scanning light microscopy and quantitative backscattered electron scanning electron microscopy. ACC and SCB in the palmar slice lateral parasagittal grooves were imaged using µCT and nanoindentation tested. Results: Characteristic spatial variations in ACC and SCB histomorphometric parameters were present, none of which was significantly related to preconditioning exercise. Thickened, aberrantly mineralised ACC was found in 13/24 parasagittal grooves in the palmar slices and on the sagittal ridge of 4/12 dorsal slices of 18-month-old horses. Deep to thickened ACC, SCB had an open marrow structure, having not adopted the buttress morphology of the normal SCB plate. SCB in 3-year-old horses had incorporated early ACC defects as notches in parasagittal grooves and a hyaline cartilage island in a sagittal ridge. ACC was less stiff and SCB more stiff in affected than unaffected parasagittal grooves. Chondroclastic resorption in the parasagittal groove may be retarded as early as 3-6 months, possibly due to localised inhibition of Dr Naomi Boxall has guided me through the PhD experience; as one of the several PhD students 5 Attribution I knew while an undergraduate at Massey University she gave me insight into coping with the varied challenges that postgraduate study entails. Naomi also helped correct my sometimes dubious spelling, grammar and punctuation while preparing documents for submission. Jen Swindlehurst provided a number of images of equine metacarpals from her own studies that I was kindly allowed to use in my presentations. Jen's work also (conveniently) supported my own, and it was nice to have a colleague who was so intimately familiar with the problem of condylar fracture. Several of Professor

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Factors associated with racing performance of Thoroughbreds undergoing lag screw repair of condylar fractures of the third metacarpal or metatarsal bone

Cited by 29 publications

References 13 publications

A systematic literature search to identify performance measure outcomes used in clinical studies of racehorses

A systematic literature search to identify performance measure outcomes used in clinical studies of racehorses

Surgical repair of propagating condylar fractures of the third metacarpal/metatarsal bones with cortical screws placed in lag fashion in 26 racehorses (2007–2015)

Calcified tissue structure in the distal condyle of the third metacarpal bone in young Thoroughbred horses

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