Objective—To describe and evaluate a new radiographic
view of the elbow joint in dogs that would
potentially enhance observation of the medial coronoid
Sample Population—20 cadaver limbs from 10 dogs
and clinical examination of 100 elbow joints of 53 dogs.
Procedure—Twenty elbow joints from 10 cadavers
were imaged by use of mediolateral, flexed mediolateral,
craniocaudal, craniolateral-caudomedial oblique
(Cr15L-CdMO), and distomedial-proximolateral oblique
(Di35M-PrLO) radiographic views before and after
placement of 3 lead pellets placed on the cranial,
medial, and craniodistal aspect of the MCP. Three
examiners independently reviewed these radiographs.
One hundred elbow joints of 53 dogs with
forelimb lameness and signs of pain elicited on palpation
of the elbow joint were examined. These joints
were radiographed and treated by use of arthroscopy.
Three examiners independently graded the radiographs.
Results—The MCP was identified on all Di35M-PrLO
views made during the anatomic study. The Di35M-PrLO
view had the largest area under the receiving
operating characteristic (ROC) curve for detection of
abnormalities of the MCP. Fractured and nonfractured
MCP could only be significantly differentiated on
Di35M-PrLO and mediolateral views. The Di35M-PrLO
view had a higher agreement between examiners
than other radiographic views for detection of
fractures of the MCP.
Conclusion and Clinical Relevance—The Di35M-PrLO
view enhances the identification of anomalies
and fragmentation of the MCP in dogs, compared
with other radiographic views. The Di35M-PrLO view
may be of benefit for early screening of dogs potentially
affected with elbow dysplasia. (Am J Vet Res