Document Detail


Computed tomography of ununited anconeal process in the dog.
MedLine Citation:
PMID:  22828947     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this study was to describe computed tomography (CT) features of the ununited anconeal process and relate them with the following elbow dysplasia signs: medial coronoid disease, medial humeral condyle changes, osteoarthritis (OA), and radioulnar incongruence.
METHODS: Computed tomographic images of dogs older than six months with an ununited anconeal process were evaluated (n = 13). Ununited anconeal process features were described as being complete or incomplete, and the degree of displacement, volume, and presence of cysts and sclerosis were also evaluated. Medial coronoid disease was defined as an irregular medial coronoid process shape, presence of sclerosis and fragmentation. Medial humeral condyle changes were defined as subchondral bone flattening, lucencies, and sclerosis. Osteoarthritis was graded depending on the osteophytes size. Radioulnar incongruence was measured on a sagittal view at the base of the medial coronoid process.
RESULTS: Eleven elbows had a complete and two had an incomplete ununited anconeal process. All ununited anconeal processes had cystic and sclerotic lesions. Seven ununited anconeal processes were displaced and six were non-displaced. Mean ununited anconeal process volume was 1.35 cm3 (0.61 cm³ - 2.08 cm³). Twelve elbows had signs of medial coronoid disease (4 of them with a fragmented medial coronoid process), and one elbow did not show any evidence of medial coronoid disease. Ten elbows had medial humeral condyle changes. One elbow had grade 1 OA, seven elbows had grade 2, and five elbows grade 3. All elbows had radioulnar incongruence: three elbows had a negative and 10 elbows had a positive radioulnar incongruence. Mean radioulnar incongruence was 1.49 mm (0.63 mm - 2.61 mm). Computed tomographic findings were similar in the majority of the elbows studied: complete ununited anconeal processes with signs of medial coronoid disease, positive radioulnar incongruence, high grade of OA, sclerotic medial humeral condyle changes, and large ununited anconeal process volumes.
CLINICAL SIGNIFICANCE: Incomplete small ununited anconeal process volumes could be associated with a lower incidence of medial coronoid disease or medial humeral condyle changes. We recommend performing preoperative CT of elbows with an ununited anconeal process to evaluate concurrent lesions.
Authors:
E G Gasch; J J Labruyère; J F Bardet
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Publication Detail:
Type:  Journal Article     Date:  2012-07-25
Journal Detail:
Title:  Veterinary and comparative orthopaedics and traumatology : V.C.O.T     Volume:  25     ISSN:  0932-0814     ISO Abbreviation:  Vet Comp Orthop Traumatol     Publication Date:  2012  
Date Detail:
Created Date:  2012-11-15     Completed Date:  2013-04-29     Revised Date:  2014-06-26    
Medline Journal Info:
Nlm Unique ID:  8906319     Medline TA:  Vet Comp Orthop Traumatol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  498-505     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Bone Development
Dog Diseases / radiography*
Dogs
Female
Forelimb / pathology*
Joint Diseases / pathology,  radiography,  veterinary*
Joints / pathology*
Male
Retrospective Studies
Tomography, X-Ray Computed / methods,  veterinary*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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