Nicoll S A, Fowler J D, Remedios A M, Clapson J B, George D
Department of Veterinary Anesthesiology, Radiology, and Surgery, Western College of Veterinary Medicine, Saskatoon, Saskatchewan, Canada.
Vet Surg. 1996 Jan-Feb;25(1):40-8. doi: 10.1111/j.1532-950x.1996.tb01375.x.
Anatomic and experimental evaluation of the feline latissimus dorsi muscle was performed to assess its potential use as a free muscle flap. In the anatomic study, nonselective angiography of the subscapular artery was performed in nine heparinized feline cadavers. The muscle dimensions and vascular anatomy of the dissected latissimus dorsi muscle were recorded. In the experimental study four cats underwent heterotopic transplantation of a partial latissimus dorsi flap, and three cats underwent orthotopic transplantation of a complete latissimus dorsi flap. The mean length and width of the latissimus dorsi muscle was 19.0 and 5.4 cm, respectively. The dominant vascular pedicle was the thoracodorsal artery and vein. The average length and diameter of the thoracodorsal artery was 2.7 cm and 0.6 mm, respectively. Minor vascular pedicles were provided by branches of the intercostal arteries. Numerous choke anastomoses existed between the two pedicle systems. Viability of muscle flaps based on subjective evaluation, angiography, and histopathology, was 66% and 100% in the heterotopic and orthotopic studies, respectively. Flap failure seemed to be caused by both arterial and venous thrombosis. The latissimus dorsi muscle flap met criteria required for application in microvascular reconstruction. The vascular pattern was appropriate and consistent. Donor site morbidity was low, whereas surgical accessibility was high. The muscle satisfied the physical criteria of a free flap. Long-term anastomotic patency and flap viability was shown.
对猫背阔肌进行了解剖学和实验性评估，以评估其作为游离肌皮瓣的潜在用途。在解剖学研究中，对9只肝素化猫尸体的肩胛下动脉进行了非选择性血管造影。记录了解剖后的背阔肌的肌肉尺寸和血管解剖结构。在实验研究中，4只猫接受了部分背阔肌皮瓣的异位移植，3只猫接受了完整背阔肌皮瓣的原位移植。背阔肌的平均长度和宽度分别为19.0厘米和5.4厘米。主要血管蒂是胸背动脉和静脉。胸背动脉的平均长度和直径分别为2.7厘米和0.6毫米。次要血管蒂由肋间动脉分支提供。两个血管蒂系统之间存在许多吻合支。根据主观评估、血管造影和组织病理学，异位和原位研究中肌皮瓣的存活率分别为66%和100%。皮瓣失败似乎是由动脉和静脉血栓形成引起的。背阔肌皮瓣符合微血管重建应用所需的标准。血管模式合适且一致。供区发病率低，而手术可达性高。该肌肉满足游离皮瓣的物理标准。显示了长期吻合通畅和皮瓣存活情况。
