Robert-Debré Hospital, Paediatric Orthopaedic Surgery Department, Paris Public Assistance Hospitals group, Paris 7 University, Paris, France.
Orthop Traumatol Surg Res. 2010 Jun;96(4):456-61. doi: 10.1016/j.otsr.2010.01.006. Epub 2010 May 7.
Robotics recently spread to spine biomechanical research. The aim of the present work is to describe and validate a new method for in vitro studying of a multisegmental spinal specimen under dynamic conditions. This method relies on the use of a simulator with six degrees of freedom (to impose movements in all directions), an optoelectric apparatus (for collecting kinematics data) and an original system for attaching kinematic markers, allowing their precise removal and replacement under different examination conditions. The accuracy of measurements as well as their reproducibility under static and dynamic conditions is reported here in the study of a human lumbar spinal specimen (L1-sacrum). The method appears to be reliable and reproducible, and should therefore enable future studies of variations in mobility between healthy and pathological spines, to better understand the influence of different implants on spinal kinematics.
机器人技术最近已经应用到脊柱生物力学研究中。本研究的目的是描述并验证一种新的方法，用于在体外动态条件下研究多节段脊柱标本。该方法依赖于使用具有六个自由度的模拟器（可施加各个方向的运动）、光电设备（用于收集运动学数据）和一个原始的附着运动学标记系统，允许在不同的检查条件下精确地移除和更换标记。本文报道了一种人体腰椎标本（L1-骶骨）的静态和动态条件下测量的准确性和可重复性。该方法似乎可靠且可重复，因此应该能够对健康和病理性脊柱之间的活动性变化进行未来的研究，以更好地理解不同植入物对脊柱运动学的影响。
