Degeorges R, Parasie J, Mitton D, Imbert N, Goubier J-N, Lavaste F
Laboratoire de Biomécanique, Ecole Nationale Supérieure des Arts et Métiers, 151, boulevard de l'hôpital, 75013, Paris, France.
Surg Radiol Anat. 2005 Mar;27(1):43-50. doi: 10.1007/s00276-004-0277-4. Epub 2004 Aug 13.
Longitudinal axial rotations of phalanges during flexion motions of digits have scarcely been analyzed with current anatomical or radiological methods. Recent optoelectronic systems were developed for three-dimensional (3D) kinematic analysis of human motion. These systems have the advantages of being non-invasive and non-irradiating. The current study was based on the VICON optoelectronic system. A validation of the protocol was made among a sample of volunteers for further direct clinical applications. An experimental protocol was set up with adaptations to the requirements of finger analyses (multiple infrared markers inside small-sized capture volumes). The set-up and the protocol details are described. Kinematic studies consisted in recording the movements of the right hand of six volunteers (free from any visible pathology). Results were displayed for the joints of each three-joint finger with calculation of 3D rotations. Metacarpophalangeal (MCP), proximal interphalangeal (PIP) and distal interphalangeal (DIP) flexion angles ranged from 78 degrees to 118 degrees, 72 degrees to 119 degrees and 9 degrees to 66 degrees respectively. Lateral angles ranged from 5 degrees to 39 degrees (MCP), 4 degrees to 39 degrees (PIP) and 4 degrees to 30 degrees (DIP). Mean longitudinal axial rotations of MCP, PIP and DIP joints ranged from 11 degrees pronation to 26 degrees supination. The index finger was in a global pronation position (five of the six specimens). The fourth and fifth fingers were in a global supination position in every case. The third finger was in a more variable global rotation (pronation in four of the six specimens). An experimental protocol using an optoelectronic system (VICON) has been developed for a kinematic analysis of three-joint finger. A global measure study should be initiated among a wider sample of adults. A database should be created with direct clinical applications. Patients' kinematic deficits could be graded either for standard movements (flexion/extension and abduction/adduction) or for longitudinal axial rotations.
目前的解剖学或放射学方法几乎未对指骨在手指屈曲运动过程中的纵向轴向旋转进行分析。最近开发了用于人体运动三维（3D）运动学分析的光电系统。这些系统具有非侵入性和无辐射的优点。本研究基于VICON光电系统。在一组志愿者样本中对该方案进行了验证，以便进一步直接应用于临床。根据手指分析的要求（在小型采集区域内使用多个红外标记）制定了实验方案。描述了设置和方案细节。运动学研究包括记录六名志愿者（无任何明显病变）右手的运动。显示了每个三节手指关节的结果，并计算了3D旋转。掌指（MCP）、近端指间（PIP）和远端指间（DIP）的屈曲角度分别为78度至118度、72度至119度和9度至66度。外侧角度为5度至39度（MCP）、4度至39度（PIP）和4度至30度（DIP）。MCP、PIP和DIP关节的平均纵向轴向旋转范围为旋前11度至旋后26度。食指处于整体旋前位置（六个标本中有五个）。在每种情况下，第四和第五指处于整体旋后位置。第三指的整体旋转变化更大（六个标本中有四个为旋前）。已开发出一种使用光电系统（VICON）的实验方案，用于对三节手指进行运动学分析。应在更广泛的成人样本中开展一项整体测量研究。应创建一个具有直接临床应用的数据库。患者的运动学缺陷可根据标准运动（屈曲/伸展和外展/内收）或纵向轴向旋转进行分级。
