Occurrence of Radiologically Detectable “Kissing” Lesion in Dog Elbows in Dependence on the Type of Fragmentation of the Processus Coronoideus Medialis and on Sex

Abstract

The aim of the study was to find the frequency of radiologically detectable "kissing" lesion in individual variants of fragmented processus coronoideus medialis (FCP) and its occurrence in relation to sex. The radiographs of elbow joints (n = 135) of dogs (n = 77) in which a fragmented processus coronoideus medialis ulnae was detected arthroscopically (n = 109) or arthrotomically (n = 26) were evaluated. Significantly higher occurrence of radiologically detectable "kissing" lesion was found in elbows with non-dislocated and dislocated fragment (p < 0.01). Significantly lower occurrence of radiologically detectable "kissing" lesion was found in elbows with chondromalacia of processus coronoideus medialis (PCM) (p < 0.01). We found no significant difference (p > 0.05) between the occurrence of a "kissing" lesion in males and females with FCP. The occurrence of the "kissing" lesion extending to the subchondral bone was not affected by sex. The results of our study suggest the possibility of identifying elbow joints with completely fragmented FCP on the basis of occurrence of a radiologically detectable "kissing" lesion. Fragmented coronoid process, elbow, dog