Torres Bryan T, Fu Yang-Chieh, Sandberg Gabriella S, Budsberg Steven C
The Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri.
The Department of Health, Exercise Science, and Recreation Management, University of Mississippi, University, Mississippi.
Vet Surg. 2017 Jul;46(5):642-652. doi: 10.1111/vsu.12634. Epub 2017 Feb 15.
To report a method of evaluating 3-dimensional joint motion in dogs with a stifle orthosis.
Experimental.
Six healthy dogs.
Three-dimensional pelvic limb joint motion was recorded with and without a stifle orthosis. Kinematic data were collected from dogs at a walk and trot for the hip, stifle, and tarsus prior to, and after application of, a stifle orthosis. Data were also obtained for the orthosis alone. Comparisons were made between the braced and unbraced limb, and between the braced limb and the orthosis alone. Complete waveforms, kinematic, and temporospatial variables were compared.
Gait waveforms differed between braced and unbraced limbs for all joints and planes of motion (P < .05), as well as between the braced stifles and the orthosis alone at both a walk and trot. However, joint ROM was inconsistently altered. The effect of bracing on stifle ROM was limited to a reduced extension at the end of stance. Adjacent joint ROM was affected by the stifle orthosis. Temporospatial variables were predominantly affected while walking.
The restrictive motion of the stifle orthosis is not fully translated to the underlying joint, based on the limited differences between the motion of braced and unbraced stifles. This effect varies with plane of motion and phase of the gait cycle, with most changes in stifle motion being detected during the stance phase. The stifle orthosis had an equal or greater effect on the motion of adjacent joints, especially the tarsus.
报告一种评估患有 stifle 矫形器的犬类三维关节运动的方法。
实验性研究。
六只健康犬。
在佩戴和不佩戴 stifle 矫形器的情况下记录三维骨盆肢体关节运动。在佩戴 stifle 矫形器之前和之后，收集犬在行走和小跑时髋、stifle 和跗关节的运动学数据。还获取了单独矫形器的数据。对支撑肢体和未支撑肢体之间以及支撑肢体和单独矫形器之间进行比较。比较完整波形、运动学和时空变量。
在所有关节和运动平面上，支撑肢体和未支撑肢体的步态波形不同（P < 0.05），在行走和小跑时，支撑的 stifle 与单独的矫形器之间的步态波形也不同。然而，关节活动范围（ROM）的改变并不一致。支撑对 stifle ROM 的影响仅限于站立末期伸展减少。相邻关节的 ROM 受 stifle 矫形器影响。时空变量在行走时受影响较大。
基于支撑和未支撑的 stifle 运动之间的有限差异，stifle 矫形器的限制性运动并未完全转化到其下方的关节。这种影响随运动平面和步态周期阶段而变化，在站立阶段检测到 stifle 运动的大多数变化。stifle 矫形器对相邻关节的运动有同等或更大的影响，尤其是跗关节。
