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Cervical kinematics estimated by finite helical axis behaviour differs in patients with neck related problems as compared to healthy controls
European Spine Journal ( IF 2.513 ) Pub Date : 2020-03-26 , DOI: 10.1007/s00586-020-06380-0
Erik Cattrysse, Anna Burioli, Luca Buzzatti, Emiel Van Trijffel

Abstract Purpose The present study analyses the kinematics of patients with neck problems and healthy controls by estimation of Finite Helical Axis behaviour. A cross sectional study design was used to investigate whether FHA behaviour differs due to neck problems. Methods 584 subjects were recruited from private and ambulatory institutional physiotherapy practices. Among these 171 patients with neck related problems were selected based on referral diagnosis by primary care general practitioners. Cervical kinematics were compared based on minimal convex hull, path length and mean angle of the Finite Helical Axis distribution as well as on the helical angle. Three active planar motions were registered: flexion–extension, axial rotation and lateral bending. Results Patients demonstrated a significantly reduced and less variable behaviour of the Finite Helical Axis during active flexion–extension and axial rotation motions as compared to healthy individuals and lateral bending. Conclusion Patients with neck related problems demonstrate a more restricted motion behaviour with less variability in Finite Helical Axis distribution and orientation during active planar motions. At present it is not clear whether these kinematic differences are the result or the cause of dysfunction. Graphic abstract These slides can be retrieved under Electronic Supplementary Material.
更新日期:2020-03-27

 

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