Vleeming A, Van Wingerden J P, Dijkstra P F, Stoeckart R, Snijders C J, Stijnen T
Research Group of Clinical Anatomy and Medical Technology, Department of Anatomy, Erasmus University, Rotterdam, The Netherlands.
Clin Biomech (Bristol). 1992 Aug;7(3):170-6. doi: 10.1016/0268-0033(92)90032-Y.
Movement in eight sacroiliac joints was measured in preparations of embalmed elderly humans and compared with radiological findings. For the biomechanical part of the study the connections between sacrum and fifth lumbar vertebra were spared, as were the surrounding ligaments. The pelvis-spine preparation was fixed at the fifth lumbar vertebra. To induce movement, forces were directed at the acetabula. With digital displacement meters rotation was measured between the sacral and iliac part of the sacroiliac joint. In the sagittal plane both ventral rotation (as part of nutation) and dorsal rotation (as part of contranutation) could be demonstrated. Most sacroiliac joints were mobile, allowing a total rotation of up to 4°. Significant intraindividual differences in mobility occurred. One sacroiliac joint without mobility showed radiographically pronounced arthrosis. The impact of the findings on kinematic chain and clinical diagnosis is discussed. In the literature no data are available on the radiographic appearance of biomechanically studied sacroiliac joints. In the present study a biomechanical and radiological approach has been combined. The study emphasizes the clinical importance of intraindividual sacroiliac differences as well as the need for a thorough integration of pelvic and lumbar kinematics.
在经过防腐处理的老年人体标本中测量了八个骶髂关节的活动度，并与放射学检查结果进行了比较。在该研究的生物力学部分，保留了骶骨与第五腰椎之间的连接以及周围的韧带。骨盆 - 脊柱标本固定在第五腰椎处。为了诱导活动，力作用于髋臼。使用数字位移计测量骶髂关节骶骨部分和髂骨部分之间的旋转。在矢状面内，可显示腹侧旋转（作为点头运动的一部分）和背侧旋转（作为反向点头运动的一部分）。大多数骶髂关节是可活动的，总旋转角度可达4°。个体之间的活动度存在显著差异。一个无活动度的骶髂关节在放射学上显示出明显的关节病。讨论了这些发现对运动链和临床诊断的影响。在文献中，没有关于经过生物力学研究的骶髂关节放射学表现的数据。在本研究中，将生物力学和放射学方法结合起来。该研究强调了个体骶髂差异的临床重要性以及全面整合骨盆和腰椎运动学的必要性。
