Observer variation in the evaluation and classification of severe central tarsal bone fractures in racing Greyhounds

Hercock, Carol Ann; Innes, John F.; McConnell, Fraser; Guilliard, M. J.; Ness, Malcolm G.; Hodson, D. Ian; Young, Iain S.

doi:10.3415/vcot-10-06-0085

Cited by 14 publications

(12 citation statements)

References 19 publications

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“…1 Additionally, for racing greyhounds, dogs with comminuted Type IV or V central tarsal bone fractures have a poorer prognosis for return to racing, and many with severe tarsal bone fractures are euthanized. [2][3][4] Therefore, correct detection and diagnosis of fractures is crucial to developing the correct treatment plan for the dog.…”

Section: Introductionmentioning

confidence: 99%

“…12,13 Disadvantages of using radiography to interpret complex joints include the superimposition of overlaying structures and relatively low contrast resolution. 4,7,14 This superimposition can produce radiolucent lines that could be misinterpreted as a fracture and complicate fracture identification. 4 Additionally, small fractures in the tarsal bones may not be detected if the x-ray beam does not pass parallel to the fracture plane.…”

Section: Introductionmentioning

confidence: 99%

“…4,7,14 This superimposition can produce radiolucent lines that could be misinterpreted as a fracture and complicate fracture identification. 4 Additionally, small fractures in the tarsal bones may not be detected if the x-ray beam does not pass parallel to the fracture plane. 15 Computed tomography is an imaging modality that is becoming more available to practitioners.…”

Section: Introductionmentioning

confidence: 99%

“…7,18 Use of CT to evaluate complex joints has several advantages compared to radiography. 4,7,14,19 The tomographic nature of CT generates two-dimensional transverse images eliminating the superimposition of the tarsal bones. 19 Compared with radiography, CT also has a higher contrast resolution that can result in better detection of subtle pathological variations in tissues.…”

Section: Introductionmentioning

confidence: 99%

“…14,19 In a previous study, CT demonstrated higher observer accuracy in describing severely comminuted fractures of the central tarsal bone in racing greyhounds compared to radiography. 4 However, no study has directly compared CT and radiography for detection of traumatic fractures of the canine tarsus.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of radiography and computed tomography to evaluate fractures of the canine tarsus

Butler

Nemanic

Warnock

2017

Vet Radiology Ultrasound

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Detection and accurate classification of traumatic tarsal fractures are important for identifying cases requiring surgical intervention. The aim of this prospective, experimental, methods comparison study was to directly compare the accuracy, sensitivity, and specificity of tarsal computed tomography (CT), ten-view and two-view digital radiographs for detecting traumatic fractures of the canine tarsus. The working hypothesis was that tarsal fractures would be detected with higher accuracy, sensitivity, and specificity using CT imaging compared to radiography, and a tenview would be superior to a two-view radiographic study. Ten cadaver hind limbs of medium to large dogs received a CT scan and ten-view radiographic study before and after induction of fractures with a hydraulic press. All bones included in the radiographic images were assessed for fractures by two observers and gross dissection was used as the gold standard. The two-view radiographic study (dorsoplantar, lateromedial) was created from the ten-view study and reviewed 2 years later. All limbs sustained fractures, the most common locations were the talus and calcaneus (n = 7). The sensitivity of CT was greater than ten-view radiographic study (77% vs. 57%), while the specificity was similar (97% vs. 98%). The sensitivity and specificity of the ten-view and twoview radiograph studies were similar (57% vs. 55%; both 98%). Computed tomography images were reassessed postdissection to determine if failure to identify fractures resulted from observer error. Overall, CT was better than radiography for detecting fractures of the canine tarsus, however there was little improvement with ten-view compared to two-view radiographic studies.

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Section: Introductionmentioning

confidence: 99%