Curvature Radius Measurements From the Humeral Trochlea in Large Dogs

Alves‐Pimenta, Sofia; Ginja, Mário; Fernandes, Armando; Melo‐Pinto, Pedro; Colaço, Bruno

doi:10.1002/ar.23366

Cited by 4 publications

(10 citation statements)

References 17 publications

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“…These ulnar trochlear notch and humeral trochlea curvatures shapes allowed us to describe the humeroulnar joint surfaces as elliptical. Points of minor curvature radii correspond to a more enclosed curve, and points of bigger curvature radii correspond to a more open curve . The bigger differences in the intermediate peaks of humerulnar curvature radii (P 3 and P 5 ), phenomenon presented by the Estrela Mountain Dog breed were compatible with lower humeroulnar congruity, due to the more pronounced flattening of the ulnar subchondral bone at these points .…”

Section: Discussionmentioning

confidence: 89%

“…Evaluation criteria and measurement methods were based on previous reports and agreed upon by three authors (SAP, BC, and MMG.) . Measurements were recorded using a software tool developed in‐house by the article authors (AMF and PMP), programmed in Matlab, Release 2010a (Mathworks, Inc., Natick, MA) which implements a methodology proposed before .…”

Section: Methodsmentioning

confidence: 99%

“…Measurements were recorded using a software tool developed in‐house by the article authors (AMF and PMP), programmed in Matlab, Release 2010a (Mathworks, Inc., Natick, MA) which implements a methodology proposed before . Similar software was used by the authors to acquire data in previous articles . All the measurements were conducted with the same computer hardware (Asus, K53S, Taipei, Taiwan).…”

Section: Methodsmentioning

confidence: 99%

“…In the flexed elbow views, the humeral trochlea curvature length under analysis was marked using the humeral trochlea length in the corresponding mediolateral extended view as a reference, using a commercially available image analysis software (Image Pro Plus, Version 6, Media Cybernetics, Silver Spring, MD). Then the curves were drawn by a curve‐fitting process, using the in‐house developed software tool and the curvature radii values calculated . Three independent measurement sessions were performed on each ulnar trochlear notch and humeral trochlea curvature.…”

Section: Methodsmentioning

confidence: 99%

“…IBM Corp, Armonk, NY) and significance was set at P < 0.05. For all statistical comparisons, the mean of the three independent measurements was considered as the reference measurement . Twenty curvature sequential radius values were selected automatically by the in‐house developed software tool at similar preestablished distances (∼5%) from each other along the ulnar trochlear notch and humeral trochlea curvatures .…”

Section: Methodsmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

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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Canine Elbow Dysplasia

Sapora

2024

Techniques in Small Animal Soft Tissue, Orthopedic, and Ophthalmic Surgery

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Role of Elbow Incongruity in Canine Elbow Dysplasia: Advances in Diagnostics and Biomechanics

Alves‐Pimenta

Ginja

Colaço

2019

Vet Comp Orthop Traumatol

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Elbow incongruity plays an important role in the development of elbow dysplasia and its diagnosis can be challenging. The objectives of this systematic review were to discuss elbow biomechanics and recent advances in the assessment of incongruity, to revise the diagnostic protocols suggested, debate advantages and disadvantages of measurements proposed to characterize the joint and improve screening.In spite of advances in the understanding of elbow incongruity, the exact mechanisms involved are not fully elucidated. The elbow is a complex joint and structures in contact differ in different phases of the gait cycle. Advances in the biomechanical field allowed new discoveries and a physiological type of incongruity was described. The next challenge is to unravel the dynamic incongruity. Radiology and computed tomography (CT) are nowadays the imaging tools more applied in clinical practice to quantify incongruity. But a CT standardized screening protocol is required. Most reported findings of incongruity were increased articular joint spaces. The proximity of joint structures and standardization of elbow positioning are identified as the main obstacles to a good interpretation. This review serves to highlight controversy between physiological types of cartilage covering described and pathological changes reported in arthroscopic studies. Radioulnar incongruity was reported more often than humeroulnar incongruity, yet prevalence studies are lacking. Sensitive and reproducible methodologies are in development, which seem primordial to assess the phenotypic heterogeneity.

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Curvature Radius Measurements From the Humeral Trochlea in Large Dogs

Cited by 4 publications

References 17 publications

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

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

Canine Elbow Dysplasia

Role of Elbow Incongruity in Canine Elbow Dysplasia: Advances in Diagnostics and Biomechanics

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