Moores Andrew P, Benigni Livia, Lamb Christopher R
Department of Veterinary Clinical Sciences, The Royal Veterinary College, Hatfield, UK.
Vet Surg. 2008 Jun;37(4):390-8. doi: 10.1111/j.1532-950X.2008.00393.x.
To describe associations between computed tomography (CT) and arthroscopy in dogs with elbow dysplasia lesions.
Retrospective clinical study.
Canine elbows (n=101) investigated by CT and arthroscopy.
CT scans were reviewed for 10 predetermined CT signs and graded for osteophyte size. Surgical reports were reviewed for specific disease features and cartilage erosion grades. Associations between variables were investigated with multivariate logistic regression and correlation between osteophyte size and cartilage erosion with Spearman's rank order correlation.
Medial coronoid process (MCP) fragment on CT was significantly associated with the arthroscopic identification of a displaced MCP fragment, cartilage erosion affecting the MCP, and cartilage erosion affecting the humeral condyle. Irregular radial incisure of the ulna on CT was significantly associated with the arthroscopic identification of cartilage erosion affecting the MCP. Osteophytes on CT were significantly associated with an abnormal arthroscopic examination. There was a moderately significant correlation between CT osteophyte grade and cartilage erosion grades for areas of the medial joint compartment (r(s)=0.44-0.48).
Some CT signs are significantly associated with arthroscopic features of elbow dysplasia lesions in dogs; however, other CT signs were not associated with arthroscopic findings, and CT and arthroscopy can provide contradictory information. Osteophyte size is moderately correlated with cartilage erosion of the medial joint compartment.
CT can provide valuable information for the investigation of dogs with elbow dysplasia, but the absence of CT signs (or the absence of arthroscopic abnormalities) does not rule out elbow lesions.
描述患有肘关节发育异常病变的犬只计算机断层扫描（CT）与关节镜检查结果之间的关联。
回顾性临床研究。
接受CT和关节镜检查的犬类肘部（n = 101）。
对CT扫描结果进行回顾，检查10个预先确定的CT征象，并对骨赘大小进行分级。查阅手术报告以了解具体疾病特征和软骨侵蚀分级。使用多变量逻辑回归研究变量之间的关联，并使用Spearman等级相关分析骨赘大小与软骨侵蚀之间的相关性。
CT显示的内侧冠状突（MCP）碎片与关节镜检查发现的移位MCP碎片、影响MCP的软骨侵蚀以及影响肱骨髁的软骨侵蚀显著相关。CT显示的尺骨桡切迹不规则与关节镜检查发现的影响MCP的软骨侵蚀显著相关。CT上的骨赘与关节镜检查异常显著相关。内侧关节腔区域的CT骨赘分级与软骨侵蚀分级之间存在中度显著相关性（r(s)=0.44 - 0.48）。
一些CT征象与犬类肘关节发育异常病变的关节镜特征显著相关；然而，其他CT征象与关节镜检查结果无关，并且CT和关节镜检查可能提供相互矛盾的信息。骨赘大小与内侧关节腔的软骨侵蚀中度相关。
CT可为患有肘关节发育异常的犬只检查提供有价值的信息，但CT征象的缺失（或关节镜检查无异常）并不排除肘部病变。
