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.

中文翻译：

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与健康对照组相比，颈部有问题的患者通过有限的螺旋轴行为估算的颈椎运动学有所不同

摘要

目的本研究通过估计有限螺旋轴行为来分析颈部问题和健康对照患者的运动学。横断面研究设计用于调查FHA行为是否由于颈部问题而有所不同。

方法

从私人和门诊机构物理治疗实践中招募了584名受试者。在这171名有颈部相关问题的患者中，是根据初级保健全科医生的转诊诊断选择的。根据最小凸包，路径长度和有限螺旋轴分布的平均角度以及螺旋角比较了颈椎运动学。记录了三个有效的平面运动：屈伸，轴向旋转和横向弯曲。

结果

与健康个体和横向弯曲相比，患者在主动屈伸和轴向旋转运动过程中，有限螺旋轴的行为明显减少且变化较小。

结论

颈部相关问题患者在活动平面运动期间表现出受限的运动行为，有限的螺旋轴分布和方向的变化较小。目前尚不清楚这些运动学差异是功能障碍的结果还是原因。

图形摘要

这些幻灯片可以在电子补充材料下找到。