An assessment of intra‐ and interobserver agreement of reporting orthopaedic findings on presale radiographs of<scp>T</scp>horoughbred yearlings

Jackson, M. L.; Vizard, AL; Anderson, GA; Mattoon, John S.; Lavelle, R. B.; Smithenson, Bryan T; Lester, Nola V.; Clarke, AR; Whitton, R. C.

doi:10.1111/evj.12150

Cited by 14 publications

(56 citation statements)

References 41 publications

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“…However, not all tarsal fractures are evident radiographically even if multiple views are obtained . Missed or incorrect diagnoses and disagreement between observers are more prevalent for subtle lesions on pre‐sale radiographs . We limited observer error by using a systematic approach and defined scoring criteria, but did exclude 23 of the 180 radiographic examinations for which T3 or Tc fracture was diagnosed when initially reported by a highly experienced observer but the other observers did not agree with the diagnosis.…”

Section: Discussionmentioning

confidence: 99%

“…All radiographs in the database had been evaluated by a Diplomate of the American College of Veterinary Surgeons with extensive experience in interpreting pre‐sale radiographs of yearling Thoroughbreds (SRH) and findings were reported in the records. The tarsal radiograph series included dorso‐55–65° medial‐plantarolateral oblique (D55–65°MPlLO), dorso‐10–20° lateral‐plantaromedial oblique (DPl) and lateromedial (LM) views as part of the routine 34–42 radiograph series used for pre‐sale evaluation . An ‘examination’ was defined as a radiograph series of both tarsi obtained on the same date.…”

Section: Methodsmentioning

confidence: 99%

“…Veterinarians are required to interpret the significance of radiographic findings for sale, soundness and future racing performance . Studies have assessed the prevalence of some of these radiographic changes and their association with subsequent performance, although limitations associated with these studies, including the low power of those that have evaluated less common lesions, have been recognised …”

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confidence: 99%

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Prevalence, radiographic resolution and outcomes of slab fractures of the third and central tarsal bones in juvenile Thoroughbred horses

Steel

Hance³

et al. 2019

Aust Veterinary J

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Background Veterinarians are required to interpret the significance of radiographic findings for sale, soundness and future racing performance of weanling and yearling Thoroughbreds. We investigated the prevalence and radiographic appearance of slab fractures of the third (T3) and central tarsal (Tc) bones.Methods Weanling and yearling horses with complete or incomplete T3 or Tc fracture were identified by searching a database of radiographs. The prevalence and radiographic appearance at initial diagnosis and after continued pasture turnout, as well as prognosis for racing, of fractures of T3 and Tc were determined. ResultsFractures were identified in 186 tarsi (184 T3 fracture only, 1 Tc fracture only, 1 Tc and T3 fracture) of 157 horses (126 unilateral T3, 29 bilateral T3, 1 contralateral Tc and T3, 1 unilateral Tc and T3) from 7676 examinations. The prevalence of T3 and Tc fractures was 2.40 (95% CI 2.07, 2.76) and 0.04 (95% CI 0.01, 0.11) per 100 radiographic examinations respectively. Fractures were identified on the D556-65 MPlLO view and occurred by survey examination at 11.1 AE 1.3 months in 85.7% horses. At initial diagnosis, 84.3% of T3 fractures appeared incomplete and involved the distal articular surface. Fracture score improved (P < 0.001), and dorsal modelling (P < 0.001) and osteoarthritis score increased in the distal intertarsal joint (P < 0.001), but not the tarsometatarsal joint, between survey and repository examinations. Fractures healed by repository examination in 71.9% of tarsi if there was > 6 months between examinations. There was no difference in sale price, and horses with T3 fractures had fewer trials when 2 and 3 years old (P = 0.023), yet no difference in other parameters of racing success when 2 or 3 years old compared with controls.Conclusion Tarsal slab fractures can occur in juvenile Thoroughbreds and most heal with continued pasture turnout of > 6 months. Further investigation is required to determine risk factors and before making firm conclusions regarding the optimal management, prognosis for racing and long-term soundness. Figure 2. Radiographic views (D55-65 MPlLO) of the tarsus of weanling or yearling Thoroughbred horses with dorsal modelling of the third (T3) or central (Tc) tarsal bones described as (a) grade 0 (nil), (b) grade 1 (mild), (c) grade 2 (moderate) and (d) grade 3 (severe). Additional changes include: (c) a slab fracture of T3 with marked blurring of the fracture line (stage 3 healing) and (d) a complete Tc fracture. D55-65 MPlLO, dorso-55-65 medial-plantarolateral oblique.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Prevalence, radiographic resolution and outcomes of slab fractures of the third and central tarsal bones in juvenile Thoroughbred horses

Steel

Hance³

et al. 2019

Aust Veterinary J

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“…Approximately 75% of horses diagnosed with SCL causing lameness are <4 years of age . The prevalence of MFC SCL in young sales horses has been estimated at 1.7–3.6% in Thoroughbreds and 10–13.6% in Quarterhorses . The epidemiological impact of SCL on athletic function is difficult to establish, but in small groups of affected horses, SCL >6 mm deep or 15 mm in diameter have been associated with a reduction in some measures of racing performance.…”

mentioning

confidence: 99%

Preliminary Investigation of the Treatment of Equine Medial Femoral Condylar Subchondral Cystic Lesions With a Transcondylar Screw

Santschi

Williams

Morgan³

et al. 2014

Veterinary Surgery

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“…Bei der Interpretation von Röntgenaufnahmen der Gliedmaßen von Pferden liegen einige Studien über die interindividuelle Übereinstimmung von bis zu vier Untersuchern vor (Groth et al 2009, Beccati et al 2013, Jackson et al 2013. Bisher ist allerdings in keiner Untersuchung der Röntgenleitfaden als Grundlage für eine Beurteilung von unterschiedlichen Röntgenbildern durch mehrere Untersucher verwendet worden.…”

Section: Introductionunclassified

Interobserver agreement in interpreting radiographs of horses using the german Radiology-Guidelines 2007 ("Röntgenleitfaden 2007")

Buschkamp¹,

Hellige²,

Rohn³

et al. 2018

PHK

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Zusammenfassung: Die röntgenologische Untersuchung ist seit vielen Jahren ein wesentlicher Bestandteil der Kaufuntersuchung bei Pferden. In Deutschland hat sich die Beurteilung der Röntgenbilder nach dem Röntgenleitfaden (RöLF07) weitgehend durchgesetzt und stellt mit der Einteilung in die Röntgenklassen sowohl für den Tierarzt, den Käufer und den Verkäufer als auch für die Juristen ein Bewertungskriterium für Pferde dar. Im Rahmen der Kaufuntersuchung schuldet der Tierarzt die "richtige" Befundung der im RöLF07 aufgeführten Röntgenaufnahmen. Allerdings entstehen nicht selten Rechtsstreitigkeiten, weil die Befundung von Röntgenbildern durch verschiedene Untersucher zu Differenzen führen kann. In der vorliegenden Studie wurde die Übereinstimmung von mehreren erfahrenen Untersuchern bei der Beurteilung von fünfzig Röntgenbildern nach dem Röntgenleitfaden07 untersucht. An der Studie nahmen vierzig erfahrene Pferdetierärzte aus dem gesamten Bundesgebiet teil. Sie wurden einzeln aufgesucht und haben die fünfzig ausgewählten Standardaufnahmen (Zehe 90°, Oxspring, Tarsus 45°, 135° und 0°, Knie 90° und 0°, Dornfortsätze der Sattellage) auf demselben Betrachtungsmonitor nach den Röntgenkennziffern (RöKZ) des RöLF 07 beurteilt. Es wurde die Übereinstimmung der Untersucher in Bezug auf die RöKZ und den Endbefund (höchste Röntgenklasse des jeweiligen Röntgenbildes) für jede Aufnahme prozentual erhoben. Außerdem wurde mittels des PABAK die Übereinstimmung aller Untersucher in Bezug auf die Endbefunde ermittelt. Für die RöKZ wurde pro Aufnahme eine Übereinstimmung von 31% bis 97,5 % aller Untersucher festgestellt. In Bezug auf die Röntgenklasse des Endbefundes der 50 Röntgenaufnahmen wurde eine gute Übereinstimmung (PABAK k= 0,72) zwischen den vierzig Untersuchern festgestellt. Die Ergebnisse dieser Studie zeigen die interindividuellen Differenzen zwischen erfahrenen Pferdetierärzten, die sich insbesondere bei Befunden mit niedriger Röntgenklasse (II, II-III oder III) offenbaren.

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An assessment of intra‐ and interobserver agreement of reporting orthopaedic findings on presale radiographs ofThoroughbred yearlings

Cited by 14 publications

References 41 publications

Prevalence, radiographic resolution and outcomes of slab fractures of the third and central tarsal bones in juvenile Thoroughbred horses

Prevalence, radiographic resolution and outcomes of slab fractures of the third and central tarsal bones in juvenile Thoroughbred horses

Preliminary Investigation of the Treatment of Equine Medial Femoral Condylar Subchondral Cystic Lesions With a Transcondylar Screw

Interobserver agreement in interpreting radiographs of horses using the german Radiology-Guidelines 2007 ("Röntgenleitfaden 2007")

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