Naik Mrunmayi Vishwanath, Nishikawa Goa, Kirino Yumi, Inoue Yoshiyuki, Iwamoto Kio, Yamabe Ryusei, Nakayama Toshie, Tsuzuki Nao, Hidaka Yuichi
Laboratory of Veterinary Surgery, Department of Veterinary Science, University of Miyazaki, 1-1 Gakuen Kibana-dai Nishi, Miyazaki 889-2192, Japan.
Chubu Branch, Kagoshima Agricultural Mutual Aid Association, 2103 Mizobe-cho, Arikawa, Kirishima, Kagoshima 899-6401, Japan.
J Vet Med Sci. 2020 Feb 18;82(2):204-208. doi: 10.1292/jvms.19-0160. Epub 2019 Dec 27.
Two-month-old (Case 1) and one-year-old (Case 2) Japanese Black cattle presented with bilateral rostral mandibular open fractures. At presentation, the proximal edges of each fracture were discolored and had a severe stench, indicating necrosis caused by infection. In both cases, a bilateral rostral mandibulectomy over the symphysis was performed. Although the tongues of both animals prolapsed post-surgery, they had no significant problems with eating or drinking. Case 1 showed excellent growth during fattening, and Case 2 successfully became pregnant and gave birth. Rostral mandibulectomy can be an effective surgical option for the treatment of cattle with difficulty in internal or external fixation due to unfavorable necrotic cranial mandibular open fractures.
两头日本黑牛,一头两个月大(病例1),另一头一岁(病例2),均出现双侧下颌前部开放性骨折。就诊时,各骨折近端边缘变色且有严重恶臭,表明存在感染导致的坏死。两例均在联合处进行了双侧下颌前部切除术。虽然两只动物术后舌头均脱垂,但它们在进食或饮水方面没有明显问题。病例1在育肥期间生长良好,病例2成功怀孕并产仔。对于因颅下颌开放性骨折坏死情况不佳而难以进行内固定或外固定的牛,下颌前部切除术可能是一种有效的手术选择。