Procedure to describe clavicular motion

作者：Delgado Guivey Gutierrez^*; De Beule Matthieu; Cardentey Dolgis R Ortega; Segers Patrick; Benitez Arsenio M Iznaga; Moliner Tania Rodriguez; Verhegghe Benedict; Palmans Tanneke; Van Hoof Tom; Van Tongel Alexander

来源：Journal of Shoulder and Elbow Surgery, 2017, 26(3): 490-496.

DOI：10.1016/j.jse.2016.09.009

• clavicular motion
• sternoclavicular joint
• shoulder kinematics
• 3D kinematics
• biomechanics
• local coordinate systems
• clavicle

Background: For many years, researchers have attempted to describe shoulder motions by using different mathematical methods. The aim of this study was to describe a procedure to quantify clavicular motion.
Methods: The procedure proposed for the kinematic analysis consists of 4 main processes: 3 transcortical pins in the clavicle, motion capture, obtaining 3-dimensional bone models, and data processing.
Results: Clavicular motion by abduction (30 degrees to 150 degrees) and flexion (55 degrees to 165 degrees) were characterized by an increment of retraction of 27 degrees to 33 degrees, elevation of 25 degrees to 28 degrees, and posterior rotation of 14 degrees to 15 degrees, respectively. In circumduction, clavicular movement described an ellipse, which was reflected by retraction and elevation. Kinematic analysis shows that the articular surfaces move by simultaneously rolling and sliding on the convex surface of the sternum for the 3 movements of abduction, flexion, and circumduction.
Conclusion: The use of 3 body landmarks in the clavicle and the direct measurement of bone allowed description of the osteokinematic and arthrokinematic movement of the clavicle.

• 出版日期2017-3