Outcome of lag-screw treatment of incomplete fractures of the frontal plane of the radial facet of the third carpal bone in horses

Rutherford, DJ; Bladon, B. M.; Rogers, Chris W.

doi:10.1080/00480169.2007.36748

Cited by 9 publications

(5 citation statements)

References 19 publications

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“…Within the rating system a horses is allocated a numerical rating reflecting its relative performance and its eligibility to compete in differing classes/grades of races. The rating is a dynamic measure of performance that is recalculated within two days of a horse’s most recent race start [ 24 ] and is analogous to the rating system used by the British Horse Racing Board [ 25 ]. Domestic ratings were categorised into ratings bands as recognised by the New Zealand handicapper.…”

Section: Methodsmentioning

confidence: 99%

Analysis of Failure to Finish a Race in a Cohort of Thoroughbred Racehorses in New Zealand

Tanner

Rogers

Bolwell

et al. 2016

Animals

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Simple SummaryOverall, the failure to finish rate in New Zealand, 2.88 per 1000 horse starts (95% CI 2.64–3.12), was lower than international figures for race day catastrophic injury. Racing and environmental variables such as horse experience, race distance and season were associated with failure to finish a race. Catastrophic injury accounted for approximately half the failure to finish events. Jockey falls were positively associated with less experienced jockeys and horses.AbstractThe objective was to describe the incidence of failure to finish a race in flat-racing Thoroughbreds in New Zealand as these are summary indicators of falls, injuries and poor performance. Retrospective data on six complete flat racing seasons (n = 188,615 race starts) of all Thoroughbred flat race starts from 1 August 2005 to 31 July 2011 were obtained. The incidence of failure to finish events and binomial exact 95% confidence intervals were calculated per 1000 horse starts. The association between horse-, rider- and race-level variables with the outcomes failure to finish, pulled-up/fell and lost rider were examined with a mixed effects Poisson regression model. A total of 544 horses failed to finish in 188,615 race starts with an overall incidence of 2.88 per 1000 horse starts (95% CI 2.64–3.12). The incidence of failure to finish horses across each race year showed little variability. In the univariable analysis race distance, larger field size, season, and ratings bands showed association with failing to finish a race. The overall failure to finish outcome was associated with season, race distance and ratings bands (horse experience and success ranking criteria). In the multivariable analysis, race distance and ratings bands were associated with horses that pulled-up/fell; season, apprentice allowances and ratings bands were associated with the outcome lost rider. The failure to finish rate was lower than international figures for race day catastrophic injury. Racing and environmental variables were associated with failure to finish a race highlighting the multifactorial nature of race-day events. Further investigation of risk factors for failure to finish is required to better understand the reasons for a low failure to finish rate in Thoroughbred flat races in New Zealand.

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Section: Methodsmentioning

confidence: 99%

Analysis of Failure to Finish a Race in a Cohort of Thoroughbred Racehorses in New Zealand

Tanner

Rogers

Bolwell

et al. 2016

Animals

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“…Time to cessation of racing was measured as either number of years raced, or as used by Rutherford et al (2007), number of race starts and number of race starts with the 2-year-old year omitted. Kaplan-Meier curves were used for exploratory analysis.…”

Section: Length Of Careermentioning

confidence: 99%

The relationship of training milestones with racing success in a population of Standardbred horses in New Zealand

Tanner

Rogers

Firth

2011

New Zealand Veterinary Journal

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Only one third the Standardbred racehorses born in 2001/2002 registered with a trainer as 2-year-olds, but the results of this study indicate that horses that began training, trialling, or racing as 2-year-olds had longer and more successful careers than those that did not achieve the milestones as 2-year-olds. Further investigation is required to quantify the management practices of these horses to determine the factors that may be associated with a successful racing career.

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“…Cartilage and osseous deficits resulting from fragment loss or removal are thought to have a negative impact on prognosis . Conservative management, fragment removal or repair either via arthrotomy or arthroscopy have all been reported but arthroscopic repair is currently considered the treatment of choice . To date, little objective data on frequency distribution of fracture configuration and radiographic and arthroscopic features has been published.…”

Section: Introductionmentioning

confidence: 99%

Radiographic and arthroscopic features of third carpal bone slab fractures and their impact on racing performance following arthroscopic repair in a population of racing Thoroughbreds in the UK

Baldwin

Smith

Allen

et al. 2019

Equine Veterinary Journal

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Summary Background Slab fractures of the third carpal bone (C3) are a common injury of Thoroughbred racehorses. Results of arthroscopically guided repair have not been reported since the initial description of the technique in 1986. Additionally, fracture details and racing outcomes in a population of Thoroughbreds racing under UK jurisdiction have not previously been described. Objectives To report the frequency distribution of C3 slab fractures and to determine the impact on racing performance following arthroscopically guided repair in a population of Thoroughbred racehorses. Study design Retrospective case series. Methods Case records of Thoroughbred racehorses undergoing arthroscopically guided repair of C3 slab fractures at Newmarket Equine Hospital between 2006 and 2015 were retrieved. Radiographs and arthroscopic studies were reviewed. The effect of demography and fracture morphology on racing outcome was evaluated. Results C3 slab fractures occurred most commonly through the radial facet in a frontal plane (45/71 63.4%). Comminution was identified during arthroscopy in 42/71 (59.2%) fractures and occurred most frequently at the palmar margin of the fracture. Forty‐one out of 65 horses (63.1%) raced at least once post‐operatively. Females were less likely to return to racing compared to males (P<0.001). Horses that had raced before injury were more likely (OR 4.4, 95% CI 1.4–13.5, P = 0.01) to race after injury compared to horses that were unraced at the time of injury. After injury horses had a small but significant reduction in racing performance. Main limitations The series is a preselected population of Thoroughbred racehorses which referring veterinary surgeons considered potential candidates for surgical repair. Conclusion Fracture configurations can be identified radiographically but is not a reliable predictor of comminution or other intra‐articular lesions. Arthroscopy not only directs repair but also identifies and facilitates management of concurrent lesions. The results reported should assist in formulating appropriate prognoses for Thoroughbred horses racing in the UK.

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Outcome of lag-screw treatment of incomplete fractures of the frontal plane of the radial facet of the third carpal bone in horses

Abstract: Horses which were diagnosed with INFR of C3 and had a lag screw placed across the fracture had a good prognosis for future racing performance.

Cited by 9 publications

References 19 publications

Analysis of Failure to Finish a Race in a Cohort of Thoroughbred Racehorses in New Zealand

Analysis of Failure to Finish a Race in a Cohort of Thoroughbred Racehorses in New Zealand

The relationship of training milestones with racing success in a population of Standardbred horses in New Zealand

Radiographic and arthroscopic features of third carpal bone slab fractures and their impact on racing performance following arthroscopic repair in a population of racing Thoroughbreds in the UK

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