Kim Mu-Young, Nam Chang-Hoon, Kim Ji-Hyun, Yoon Hun-Young
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA.
Department of Veterinary Surgery, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
Vet Sci. 2023 Feb 13;10(2):150. doi: 10.3390/vetsci10020150.
A 4-year-old mixed breed dog and a 19-year-old English cocker spaniel dog were evaluated for fecal incontinence. The second dog's fecal incontinence was associated with the anal mass. In both dogs, reconstruction of the external anal sphincter was required to gain fecal continence. Especially in the dog with an anal mass, the whole musculature involved in fecal continence was removed with the affected anorectum. Conventional surgical treatments for fecal incontinence have limitations in terms of muscle flap length and complexity of the surgical procedure. A modified surgical technique using the semitendinosus muscle was devised in the present study to overcome these limitations. The distal part of the semitendinosus muscle was bifurcated to make two muscle bundles, used to completely encircle the anorectum. These muscle bundles were sutured to the surrounding rectal muscle and the pelvic diaphragm to simulate the function of the external anal sphincter. Three months after surgery, both dogs showed significantly improved fecal continence without severe complications, such as infection, dehiscence, or lameness of the limb where the semitendinosus muscle was harvested. The outcomes of the two dogs supported the acceptability of the bifurcated muscle flap for anal sphincter augmentation. In addition, this report showed the possibility of more diverse applications of semitendinosus muscle in dogs.
对一只4岁的混血犬和一只19岁的英国可卡犬进行了大便失禁评估。第二只犬的大便失禁与肛门肿物有关。两只犬均需要进行肛门外括约肌重建以实现大便自控。特别是对于患有肛门肿物的犬,参与大便自控的整个肌肉组织与受影响的肛门直肠一并被切除。传统的大便失禁手术治疗在肌瓣长度和手术操作复杂性方面存在局限性。本研究设计了一种使用半腱肌的改良手术技术来克服这些局限性。半腱肌的远端被分成两束肌肉,用于完全环绕肛门直肠。这些肌束被缝合到周围的直肠肌肉和盆底肌上,以模拟肛门外括约肌的功能。术后三个月,两只犬的大便自控能力均显著改善,且未出现严重并发症,如感染、裂开或取半腱肌肢体的跛行。两只犬的结果支持了分叉肌瓣用于肛门括约肌增强的可行性。此外,本报告显示了半腱肌在犬类中更多样化应用的可能性。