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摘要
Medical records of horses examined from 1994 to 2011 at the Equine Hospital, Vetsuisse Faculty, University of Zurich, because of proximal suspensory desmitis (PSD) were reviewed. Radiographic changes visible on dorsopalmar and dorsoplantar projections of the proximal third metacarpal/metatarsal bone (MCIII/MTIII) were analysed with respect to localisation, degree of increased radiopacity, length, width and pattern of radiopacity in relation to sex, age, breed, duration and degree of lameness and affected limb of the horses. Results were compared with those from sound control horses. Horses with PSD had increased radiopacity, which was significantly more prevalent medially than laterally in the forelimbs (p < 0.05) and more prevalent laterally than medially in the hindlimbs (p < 0.05). The width of the area of increased radiopacity was significantly greater in the forelimbs than in the hindlimbs (p <0.05). The pattern of increased radiopacity was diffuse in 102 (85.7%) horses and multifocal in the remaining 17 (14.3%). 35.3% (n = 6) of multifocal changes were detected on one of the front limbs, whereas 74.7% (n = 11) were diagnosed on the hind limbs. Mildly increased diffuse radiopacity, with a distribution pattern comparable to cases with PSD was detected in 15 of 60 control horses. In comparison to control cases, the degree of increased diffuse radiopacity was significant more pronounced in horses with PSD (p < 0.001). The multifocal pattern of increased radiopacity could not be detected in any of the control horses. The results aid in the interpretation of radiographic changes seen in horses with PSD. Whereas a diffuse increased radiopacity of the proximal MCIII/MTIII needs to be interpreted with caution, as a mild degree may be seen in sound horses, the multifocal distribution pattern seems to be unique feature of horses with PSD.
- 出版日期2014-12
