前十字韧带断裂犬胫骨平台角的X线和CT测量

doi:10.16431/j.cnki.1671-7236.2021.10.043

摘要/Abstract

摘要： 为探究胫骨平台角（tibial plateau angle，TPA）在犬前十字韧带断裂（cranial cruciate ligament rupture，CCLR）中的临床意义及为犬CCLR的整体发病规律与风险、诊断和治疗方案提供参考，本研究选用2018年6月至2019年1月在中国农业大学动物医院确诊为CCLR的共15只患犬的30个膝关节，使用X线和CT测量TPA （R-TPA和CT-TPA）并比较X线和CT测量TPA的一致性及优缺点。结果显示，R-TPA大小与年龄、体重、胖瘦、性别及绝育/去势与否均无关（P>0.05），前十字韧带是否断裂亦与TPA大小无关（P>0.05）。经CT测量所得30个CT-TPA的平均值为26.93°（范围：19.03°~32.67°）；左侧膝关节的CT-TPA的平均值为26.82°，右侧为27.04°。R-TPA与CT-TPA值具高度相关性（r>0.75，P>0.05）；21个膝关节（70%）可在CT图像中观察到骨赘生成，其CT图像比X线图像能更清楚地辨识出骨赘与骨皮质的分界。结果表明，TPA与CCLR患犬的临床病理因素无关，X线与CT在测量犬TPA方面具有一致性，CT测量在测量图像的采集上较X线拍摄更方便、快捷与全面，并在骨关节炎病例中的测量精度更高。

关键词: 犬; 前十字韧带断裂; 胫骨平台角; X线; CT

Abstract: In order to explain the clinical significance of tibial plateau angle (TPA) in dogs cranial cruciate ligament rupture (CCLR) and provide references to pathogenesis and risk, diagnosis and treatment of canine CCLR, 30 stifle joints of 15 CCLR dogs in China Agricultural University Veterinary Teaching Hospital from June 2018 to January 2019 were selected. TPA (R-TPA and CT-TPA) was measured on radiographs and CT respectively. The consistency, advantages and disadvantages of two methods were compared. The results showed that:The magnitude of R-TPA was not related to age, weight, fat and thin, sex and sterilization/castration or not (P>0.05). The difference in TPA between the stifles with or without cranial cruciate ligament rupture was not significant (P>0.05). The mean value of 30 CT-TPA in this study was 26.93° (range:19.03°-32.67°). The mean CT-TPA of the left stifle joint was 26.82° and that of the stifle knee joint was 27.04°. There was a high correlation between R-TPA and CT-TPA (r>0.75, P>0.05). Osteophytes was observed in 21 stifles (70%) on CT images, and the boundary between osteophyte and bony cortex could be identified more clearly on CT image than radiographs. These results indicated that there were no associations between TPA and the clinical features of the dogs with CCLR. Radiographs and CT had consistency in measuring TPA in dogs, but CT was more convenient, timesaving and comprehensive in acquiring image, and hasd higher accuracy in the osteoarthritis cases.

Key words: dog; cranial cruciate ligament rupture; tibial plateau angle; radiograph; CT

中图分类号:

S854.7

吴楚琳, 王佳尧, 张晗, 谢富强, 袁占奎. 前十字韧带断裂犬胫骨平台角的X线和CT测量[J]. 中国畜牧兽医, 2021, 48(10): 3896-3904.

WU Chulin, WANG Jiayao, ZHANG Han, XIE Fuqiang, YUAN Zhankui. Radiographic and CT Measurements of Tibial Plateau Angle in Dogs with Cranial Cruciate Ligament Rupture[J]. China Animal Husbandry and Veterinary Medicine, 2021, 48(10): 3896-3904.

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