Tanegashima Koji, Edamura Kazuya, Akita Yuki, Yamazaki Atsushi, Yasukawa Shinji, Seki Mamiko, Asano Kazushi, Nakayama Tomohiro, Katsura Taro, Hayashi Kei
Laboratory of Veterinary Surgery, Department of Veterinary Medicine, College of Bioresource and Sciences, Nihon University, Fujisawa, Kanagawa, Japan.
Laboratory of Veterinary Radiology, Department of Veterinary Medicine, College of Bioresource and Sciences, Nihon University, Fujisawa, Kanagawa, Japan.
Vet Comp Orthop Traumatol. 2019 May;32(3):182-191. doi: 10.1055/s-0039-1678711. Epub 2019 Mar 14.
The aim of this study was to investigate detailed functional anatomy of the craniomedial bundle (CrMB) and caudolateral bundle (CdLB) of cranial cruciate ligament (CrCL) for application of intra-articular anatomical reconstruction in dogs.
Twelve stifle joint of 12 Beagle cadavers were used. Anatomical characteristics of femoral attachment regions of the CrCL were determined. Then, the location and area of the footprints of the CrMB and CdLB were objectively measured. Each bundle was equally divided into four fibre bundles, and changes in the fibre arrangement were recorded during stifle range of motion. Additionally, the tension of each fibre bundle at various stifle joint angles was objectively measured.
The attachment region of the CrCL clearly differed from that reported in humans. The centre of the CdLB attachment site was located craniodistal to that of the CrMB on the femur and slightly caudal to that of the CrMB on the tibia. The area of the CrMB on the femoral and tibial attachment sites was larger than that of the CdLB. During stifle range of motion, each divided fibre bundle in the CrMB and CdLB was twisted intricately. The tension of the CrMB was higher than that of CdLB. The central part of the CrMB was always tense during stifle range of motion.
These results may contribute to the application of anatomical reconstruction surgery for CrCL deficient stifle in dogs.
本研究旨在探讨犬颅交叉韧带（CrCL）的颅内侧束（CrMB）和后外侧束（CdLB）的详细功能解剖结构，以应用于犬关节内解剖重建。
使用12只比格犬尸体的12个 stifle 关节。确定 CrCL 股骨附着区域的解剖特征。然后，客观测量 CrMB 和 CdLB 足迹的位置和面积。每个束均分为四个纤维束，并记录 stifle 运动范围内纤维排列的变化。此外，客观测量不同 stifle 关节角度下每个纤维束的张力。
CrCL 的附着区域与人类报道的明显不同。CdLB 附着位点的中心在股骨上位于 CrMB 的颅远侧，在胫骨上略位于 CrMB 的尾侧。CrMB 在股骨和胫骨附着位点的面积大于 CdLB。在 stifle 运动范围内，CrMB 和 CdLB 中每个分开的纤维束都复杂地扭曲。CrMB 的张力高于 CdLB。在 stifle 运动范围内，CrMB 的中央部分始终处于紧张状态。
这些结果可能有助于犬 CrCL 缺陷 stifle 的解剖重建手术的应用。
