Computed Tomographic Evaluation of Canine Radioulnar Incongruence In Vivo

Abstract

If RUI is a significant factor in the pathophysiology of medial compartment elbow disease in the dog, it does not appear to be present at the time of diagnosis of disease. Ulnar or radial osteotomies do not appear to be indicated for restoration of normal radioulnar articular surface alignment.

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

“…Our results are also in accordance with the amount of radio-ulnar translation reported in a cadaveric model of simulated triceps pull (Might et al, 2011). Therefore, the widely suspected dynamic radio-ulnar step creation during weight bearing activity (Gemmill et al, 2005;Kramer et al, 2006;Gemmill and Clements, 2007;Smith et al, 2009;Might et al, 2011;Gutbrod and Guerrero, 2012;Starke et al, 2013Starke et al, , 2014Krotscheck et al, 2014a;Mariee et al, 2014;Eljack and Bottcher, 2015) is a consistent physiological pattern of elbow kinematic in dogs. While the results of the current data prove the presence of dynamic RUI in canine elbow joints, the amplitude of dynamic translation was not different between normal and dysplastic joints.…”

“…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). This might be due to transient RUI during growth, with incongruence having resolved by the time of clinical presentation, which is usually months later.…”

Techniques of Application and Initial Clinical Experience with Sliding Humeral Osteotomy for Treatment of Medial Compartment Disease of the Canine Elbow

“…This spectrum of pathology and ensuing full thickness cartilage erosion in the region defined by the medial aspect of the coronoid process and medial aspect of the humeral condyle has been referred to as medial compartment disease (MCD). 2,3 Elbow incongruity such as radioulnar step defects, humeroulnar incongruence, varus deformity of the humerus, or imbalance between skeletal and muscular mechanics may contribute to medial MCD of the elbow joint in dogs. Pathology of the lateral aspect of the elbow joint is far less commonly observed.…”

Avaliação radiográfica e tomográfica da articulação umerorradioulnar em cães

“…Porém houve boa/moderada concordância para mensuração da incongruência radioulnar no plano sagital entre os observadores. Concluiu-se que nenhuma das cinco incidências radiográficas foi superior à outras para análise radiográfica, uma vez que cada projeção apresentou melhor identificação de um compartimento do cotovelo; medidas ao exame tomográfico para incongruência radioulnar não apresentam reprodutibilidade no corte dorsal, no corte sagital apresentaram boa e moderada concordância entre os observadores e que a mensuração do ângulo da incisura Figura 5.7-Imagens tomográficas reformatadas para mensuração da incongruência radioulnar nos planos sagital e dorsal,segundo o plano transversal, baseado nos estudos de Kramer et al (2006 FOURIE, 1998;GEMMILL et al, 2005), é um termo genérico para descrever má formação ou disfunção da articulação do cotovelo (LJUNGGREN et al, 1966;BEUING et al, 2000). É considerada um grupo de desordens do desenvolvimento que afeta cães de raças grandes (BEUING et al, 2000;MALM et al, 2008;MOORES et al, 2008;LAPPALAINEN et al, 2013) e gigantes (MOORES et al, 2008;MICHELSEN, 2012) e é a causa mais comum de claudicação de membros torácicos em cães jovens (FOX et al, 1982;KRAMER et al, 2006;BURTON et al, 2011;LAPPALAINEN et al, 2013).…”

“…A displasia do cotovelo cursa com manifestações clínicas e radiográficas de osteoartrose (OA), e a ela são relacionadas a não união do processo ancôneo (NUPA), fragmentação do processo coronóide medial (FPCM), osteocondrose do côndilo umeral (OC) e incongruência articular (IA) FOURIE, 1998;WALKER, 1998;BEUING et al, 2000;REICHLE et al, 2000;HAUDIQUET et al, 2002;MASON et al, 2004;GEMMILL et al, 2005;KEALLY;MCALLISTER, 2005;SAMOY et al, 2006;KRAMER et al, 2006;POLLARD, 2007;GEMMILL et al, 2007;MOORES et al, 2008;COOK;COOK, 2009;HOULTON, 2009;TEMWICHITR et al, 2010;GASCH et al, 2012;LAVRIJSEN et al, 2012).…”