China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (10): 3896-3904.doi: 10.16431/j.cnki.1671-7236.2021.10.043

• Clinical Veterinary Medicine • Previous Articles    

Radiographic and CT Measurements of Tibial Plateau Angle in Dogs with Cranial Cruciate Ligament Rupture

WU Chulin1, WANG Jiayao2, ZHANG Han1, XIE Fuqiang1,2, YUAN Zhankui1,2   

  1. 1. College of Veterinary Medicine, China Agricultural University, Beijing 100193, China;
    2. China Agricultural University Veterinary Teaching Hospital, Beijing 100193, China
  • Received:2021-03-01 Online:2021-10-20 Published:2021-09-30

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

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