Zhang Zhengzhi, Xiong Yan
Department of Central Laboratory, Department of Basic Medicine, The Third Military Medical University, Chongqing 400038, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2009 Dec;26(6):1267-70.
In order to provide data for clinical approach to Hand-functional rehabilitation, we conducted this study on the relationships among flexor tendon load, tendon excursion and finger joint angle. Using the dynamic biomechanical test, three-dimension motion image analysis and computer analysis, we investigated eight intact normal male cadavers, hand mechanics of flexor tendon load, tendon excursion and joint angle. The results showed that, at the time when the top of finger touched the palm, the mean tendon load of flexor digitorum profundus(FDP) tendon was 7.9 N, the mean tendon excursion 43.4 mm, the mean total range of motion 237.0 degree. When the top of finger touched the palm, the mean tendon load of flexor digitorum superficial(FDS) tendon was 8.9 N, the mean tendon excursion 38.5 mm, and the mean total range of motion 206.3 degree. These findings demonstrated that there are some curvilinear relationships between flexor tendon load, tendon excursion and finger joint motion. When we flex our fists, the proximal interphalangeal(PIP) joint plays an important role in both FDP and FDS tendon.
为了为手部功能康复的临床方法提供数据，我们对屈肌腱负荷、肌腱滑动和手指关节角度之间的关系进行了这项研究。通过动态生物力学测试、三维运动图像分析和计算机分析，我们研究了八具完整的正常男性尸体的屈肌腱负荷、肌腱滑动和关节角度的手部力学情况。结果显示，当手指尖触碰到手掌时，指深屈肌腱（FDP）的平均肌腱负荷为7.9N，平均肌腱滑动为43.4mm，平均总运动范围为237.0度。当手指尖触碰到手掌时，指浅屈肌腱（FDS）的平均肌腱负荷为8.9N，平均肌腱滑动为38.5mm，平均总运动范围为206.3度。这些发现表明，屈肌腱负荷、肌腱滑动和手指关节运动之间存在一些曲线关系。当我们握拳时，近端指间关节（PIP）在指深屈肌腱和指浅屈肌腱中都起着重要作用。
