Kimura Taro, Kimura Sayaka, Okada Junichi, Suzuki Sayaka, Kitanaka Taku
Kimura Animal Hospital, Tokyo, Japan.
Department of Biochemistry, Nihon University, Kanagawa Ward, Japan.
Front Vet Sci. 2020 Mar 31;7:138. doi: 10.3389/fvets.2020.00138. eCollection 2020.
Feline degenerative joint disease (DJD) has been reported worldwide. Radiographic evidence, including that from single-plane radiographs, has been used for diagnosis in these reports, though orthogonal radiographs are generally required to diagnose DJD. However, more orthogonal radiographs are required for diagnosis. In this study, we investigated how many orthogonal radiographs are necessary to diagnose feline DJD among domestic short-haired cats. We analyzed the data from 101 cats for which the owners requested screening for arthritis. Orthogonal radiographs of appendicular and intervertebral joints were taken from the chest to the caudal side. Radiographs were then reviewed and graded by severity of DJD in each joint. Radiographic evidence of appendicular DJD was detected in 74.26% of 101 cats, of which 40.59% had intervertebral DJD (typically of the lumbosacral joint). Appendicular DJD was most common in elbow joints. Lameness was recognized by an owner of two cats and was diagnosed by a veterinarian in two cats. No obvious pain was detected on palpation in any cats with appendicular osteoarthritis, but lumbosacral DJD was associated with back pain in seven cases. Aging was associated with radiographic evidence of DJD: radiographic evidence of DJD was observed in most older domestic short-haired cats. Most cases without lumbosacral DJD had no obvious symptoms. As the lifespan of cats increases due to better lifestyles, diet, and medical treatment, lumbosacral DJD, which is more likely in older cats, may become an increasingly important clinical problem. In addition, orthogonal radiograph must be taken to make diagnosis for appendicular joint DJD especially hip and stifle joint.
猫退行性关节病（DJD）在全球范围内均有报道。在这些报道中，包括单平面X线片在内的影像学证据已被用于诊断，不过通常需要正交X线片来诊断DJD。然而，诊断需要更多的正交X线片。在本研究中，我们调查了在诊断家养短毛猫的猫DJD时需要多少张正交X线片。我们分析了101只猫主人要求进行关节炎筛查的数据。从胸部到尾侧拍摄了附属关节和椎间关节的正交X线片。然后根据每个关节DJD的严重程度对X线片进行复查和分级。在101只猫中，74.26%检测到附属关节DJD的影像学证据，其中40.59%有椎间DJD（通常为腰骶关节）。附属关节DJD最常见于肘关节。两只猫的主人察觉到跛行，两名兽医诊断出两只猫跛行。在任何患有附属关节骨关节炎的猫中，触诊时均未发现明显疼痛，但7例腰骶部DJD与背痛有关。衰老与DJD的影像学证据有关：在大多数老年家养短毛猫中观察到DJD的影像学证据。大多数没有腰骶部DJD的病例没有明显症状。随着猫由于更好的生活方式、饮食和医疗而寿命延长，在老年猫中更常见的腰骶部DJD可能会成为一个日益重要的临床问题。此外，对于附属关节DJD，尤其是髋关节和膝关节的诊断，必须拍摄正交X线片。
