Department of Anatomy and Embryology, Ghent University, Ghent, Belgium.
Department of Physical Medicine and Orthopedic Surgery, Ghent University, Ghent, Belgium.
J Orthop Res. 2019 May;37(5):1101-1109. doi: 10.1002/jor.24271. Epub 2019 Mar 28.
Sacroiliac joint (SIJ) biomechanics have been described in both in vitro and in vivo studies. A standard for joint coordinate systems has been created by the International Society of Biomechanics for most of the joints in the human body. However, a standardized joint coordinate system for sacroiliac joint motion analysis is currently still lacking. This impedes the comparison across studies and hinders communication among scientists and clinicians. As SIJ motion is reported to be quite limited, a proper standardization and reproducibility of this procedure is essential for the interpretation of future biomechanical SIJ studies. This paper proposes a joint coordinate system for the analysis of sacroiliac joint motion, based on the procedure developed by Grood and Suntay, using semi-automated anatomical landmarks on 3D joint surfaces. This coordinate system offers high inter-rater reliability and aspires to a more intuitive representation of biomechanical data, as it is aligned with SIJ articular surfaces. This study aims to encourage further reflection and debate on biomechanical data representation, in order to facilitate interpretation of SIJ biomechanics and improve communication between researchers and clinicians. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res.
骶髂关节（SIJ）生物力学已在体外和体内研究中进行了描述。国际生物力学学会已经为人体的大多数关节创建了关节坐标系的标准。然而，目前仍然缺乏用于骶髂关节运动分析的标准化关节坐标系。这阻碍了研究之间的比较，并妨碍了科学家和临床医生之间的交流。由于报告称骶髂关节运动非常有限，因此对于未来生物力学 SIJ 研究的解释，正确的标准化和可重复性对于该程序至关重要。本文提出了一种基于 Grood 和 Suntay 开发的程序的骶髂关节运动分析的关节坐标系，该程序使用 3D 关节表面上的半自动解剖学标志点。该坐标系具有较高的组内可靠性，并期望更直观地表示生物力学数据，因为它与 SIJ 关节表面对齐。本研究旨在鼓励进一步思考和讨论生物力学数据表示，以促进对 SIJ 生物力学的解释，并改善研究人员和临床医生之间的沟通。
