Radiographic, Computed Tomographic, and Arthroscopic Findings in Labrador Retrievers With Medial Coronoid Disease

Lau, Seng Fong; Theyse, L. F. H.; Voorhout, George; Hazewinkel, H. A. W.

doi:10.1111/j.1532-950x.2014.12291.x

Cited by 26 publications

(52 citation statements)

References 26 publications

(35 reference statements)

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“…, Lau et al . ). The aetiology of MCPD is likely to reflect either primary subchondral disease (Danielson et al .…”

Section: Introductionmentioning

confidence: 97%

“…MCPD and the subsequent osteoarthritis accompanying this condition is a frequent cause of lameness. Affected dogs, of which Labrador retrievers comprise around 50% of cases in some studies, typically present with lameness between 6 and 18 months of age , Lau et al 2015. The aetiology of MCPD is likely to reflect either primary subchondral disease (Danielson et al 2006) or primary aberrant ossification (Lau et al 2013) leading to osteonecrosis and fragmentation.…”

Section: Introductionmentioning

confidence: 99%

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CT evaluation of elbow congruity in dogs: radial incisure versus apical medial coronoid process fragmentation

Baud¹,

Griffin

Martínez-Taboada

et al. 2020

J of Small Animal Practice

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Objectives To compare elbow congruity in two cohorts of Labrador retrievers affected with either radial incisure or apex fragmentation of the medial coronoid process. Materials and Methods Dogs were included if they had elbow lameness and a CT diagnosis of a fissure or fragmentation of the medial coronoid process occurring either along the radial incisure or at the coronoid apex. Radioulnar joint space was measured incrementally from the lateral to the medial coronoid process on transverse slice images. Axial radioulnar congruency was also measured at the apex and mid‐coronoid in the dorsal plane and at the base of the coronoid in the sagittal plane. Results We studied 99 elbows (in 66 dogs) of which 56 had a fissure or fragmentation along the radial incisure and 43 had an apical fragment. No difference was found between the two groups at the different measuring points – with the exception of a transverse plane radioulnar joint space measurement in the radial incisure group that was smaller adjacent to the lateral coronoid process. Clinical Significance Abnormal ulnar morphology in the radial incisure group could result in a fulcrum effect within the radioulnar joint, overloading the radial incisure and predisposing to osteochondral damage at this site.

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“…, Lau et al . ). The aetiology of MCPD is likely to reflect either primary subchondral disease (Danielson et al .…”

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

CT evaluation of elbow congruity in dogs: radial incisure versus apical medial coronoid process fragmentation

Baud¹,

Griffin

Martínez-Taboada

et al. 2020

J of Small Animal Practice

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“…According to Eljack and Bottcher (2015) we refer to RUI as "axial radio-ulnar incongruence", in contrast to local positive radio-ulnar incongruence at the tip of the medial coronoid process. Axial static RUI is thought to develop because of asynchronous growth between the radius and ulna (Samoy et al, 2006;Lau et al, 2015;Nemanic et al, 2016). However, in a significant number of dogs with medial coronoid disease RUI is not present (Gemmill et al, 2005;Kramer et al, 2006;Eljack and Bottcher, 2015).…”

Section: Introductionmentioning

confidence: 99%

In vivo fluoroscopic kinematography of dynamic radio-ulnar incongruence in dogs

Rohwedder¹,

Fischer²,

Böttcher³

2017

Open Vet J.

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Aim of the study was to investigate dynamic radio-ulnar incongruence (dRUI) in the canine elbow joint comparing orthopedic healthy and dysplastic dogs in a prospective in vivo study design. In 6 orthopedic sound elbow joints (5 dogs, median age 17 months & mean body weight 27.9 kg) and 7 elbow joints with medial coronoid disease (6 dogs, median age 17.5 months & mean body weight 27.6 kg) 0.8 mm Ø tantalum beads were surgically implanted into radius, ulna and humerus for dynamic radiosteriometric analysis (RSA) using high-speed biplanar fluoroscopy with the dogs walking on a treadmill. dRUI, in the form of proximo-distal translation of the radius relative to the ulna, was measured for the first third of stance phase and compared between groups using unpaired t-testing. Healthy elbow joints exhibited a relative radio-ulnar translation of 0.7 mm (SD 0.31 mm), while dysplastic joints showed a translation of 0.5 mm (SD 0.30 mm). No significant difference between groups was detected (p = 0.2092, confidence interval -0.6 -0.2). Based on these findings dRUI is present in every canine elbow joint, as part of the physiological kinematic pattern. However, dysplastic elbow joints do not show an increased radio-ulnar translation, and therfore dRUI cannot be considered causative for medial coronoid disease.

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“…Pathological elbow incongruity has been defined as radioulnar incongruity with an axial step on the proximal radioulnar‐joint surface, and humeroulnar incongruity has been defined as a curvature mismatch between the ulnar trochlear notch and the humeral trochlea . Radiography remains the imaging tool of choice as a first approach for canine elbow dysplasia screening, due to its affordability and widespread availability . Disadvantages of radiography include superimposition and geometric distortion of anatomic structures due to positioning variations .…”

Section: Introductionmentioning

confidence: 99%

Radiographic assessment of humeroulnar congruity in a medium and a large breed of dog

Alves‐Pimenta

Colaço

Fernandes

et al. 2017

Vet Radiology Ultrasound

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Elbow joint incongruity is recognized as an important factor in the development, treatment, and prognosis of canine elbow dysplasia. Elbow incongruity has been measured based on radiographic joint space widths, however these values can be affected by the degree of elbow joint flexion. Recent studies have reported radiographic curvature radii as more precise measures of humeroulnar congruity in dogs. The aim of this prospective observational study was to describe radiographic curvature radii measured from flexed and extended elbow radiographs for a sample of dogs representing a medium breed (Portuguese Pointing Dog) and a large breed (Estrela Mountain Dog). The curvature radii from the ulnar trochlear notch and humeral trochlea were measured in 114 mediolateral elbow extended radiographic views (30 Portuguese Pointing Dog and 27 Estrela Mountain Dog), and 84 mediolateral flexed views (22 Portuguese Pointing Dog and 20 Estrela Mountain Dog). The sampled animals' ages ranged from 12 to 84 months (34.6 ± 17.8 months). Good agreement was observed between curvature radii measurements for flexed vs. extended views in both breed groups. Ulnar trochlear notch curvature radii measurements were greater than humeral trochlea curvature radii measurements in both breed groups. Both curvature radii were greater in the large-breed dog group vs. the medium-breed dog group. Both breed groups had ulnar and humeral curves with similar typology. However, the large breed group had greater intermediate differences between the humeroulnar surface curvature radii. Results from this study supported the use of curvature radii as measures of humeroulnar congruity in mediolateral flexed elbow radiographs of medium and large breed dogs.

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Radiographic, Computed Tomographic, and Arthroscopic Findings in Labrador Retrievers With Medial Coronoid Disease

Abstract: Wide ranges of radiographic, CT, and arthroscopic findings in Labrador Retrievers diagnosed with medial coronoid disease were identified.

Cited by 26 publications

References 26 publications

CT evaluation of elbow congruity in dogs: radial incisure versus apical medial coronoid process fragmentation

CT evaluation of elbow congruity in dogs: radial incisure versus apical medial coronoid process fragmentation

In vivo fluoroscopic kinematography of dynamic radio-ulnar incongruence in dogs

Radiographic assessment of humeroulnar congruity in a medium and a large breed of dog

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