Postgraduate Program in Animal Science and Health, Center for Rural Health and Technology, Federal University of Campina Grande, Patos, Paraíba, Brazil.
Veterinary Anesthesiology at Instituto Qualittas, Fortaleza, Ceará, Brazil.
Am J Primatol. 2022 Aug;84(8):e23416. doi: 10.1002/ajp.23416. Epub 2022 Jul 18.
The knowledge of anatomy and imaging exams emerges as an important tool in the study of evolutionary processes of a species, in the elaboration of diagnosis, and the successful choice of the appropriate clinical and surgical procedures. Therefore, this study aims to describe the osteology of the hind limb of Sapajus libidinosus by means of gross, radiographic, and tomographic images. Four cadavers were used in the macroscopic analysis and five animals for the imaging exams, of which four were eventually euthanized and added to the macroscopic study. For imaging exams, they were kept anesthetized. All bones of the hind limb were documented, their structures were described, and compared with data in the literature from human and nonhuman primates. We have performed Student's t test for independent samples. There was no statistical difference between the sexes regarding the length of the hind limb bones. The coxal bone was largely well described using imaging methods. A small penile bone was present at the tip of the penis and it could be identified by all analysis methods. The femur, as well as the tibia and fibula, were not well portrayed in their proximal and distal epiphyses by radiography (Rx). However, they were well identified on tomography. No third trochanter was observed in the femur and the patella had a triangular shape. All the structures described by gross anatomy of the tarsus and metatarsus could be identified by Rx and tomography. More subtle structures, such as the popliteal notch on the tibia, and the gluteal tuberosity pectineal line and facies aspera on the coxal bone, were not identified by medical imaging. S. libidinosus presented anatomical characteristics that were similar to those of larger New World and Old World monkeys, including man. This suggests it's value as an experimental model for studies in recent primates.
解剖学知识和影像学检查在研究物种的进化过程、制定诊断方案以及成功选择合适的临床和手术方法方面发挥着重要作用。因此，本研究旨在通过大体、影像学和断层扫描图像来描述长鼻猴后肢的骨骼结构。在宏观分析中使用了 4 具尸体，在影像学检查中使用了 5 只动物，其中 4 只最终被安乐死并纳入宏观研究。进行影像学检查时，动物处于麻醉状态。记录了后肢的所有骨骼，描述了其结构，并与人类和非人类灵长类动物的文献数据进行了比较。我们进行了独立样本 t 检验。后肢骨骼的长度在性别之间没有统计学差异。影像学方法可以很好地描述髋骨。在阴茎的尖端有一个小的阴茎骨，可以通过所有分析方法识别。股骨、胫骨和腓骨在近侧和远侧骨骺处的 X 线摄影（Rx）表现不佳，但在断层扫描中可以很好地识别。股骨没有第三转子，髌骨呈三角形。跗骨和跖骨的大体解剖描述的所有结构都可以通过 Rx 和断层扫描识别。胫骨上的腘窝切迹、髋骨上的臀结节耻骨线和粗隆面等更细微的结构，不能通过医学影像学识别。长鼻猴具有与包括人类在内的更大的新世界和旧世界猴子相似的解剖学特征，这表明它作为近代灵长类动物研究实验模型的价值。
