Inertial Sensors as a Tool for Diagnosing Discopathy Lumbosacral Pathologic Gait: A Preliminary Research
Inertial Sensors as a Tool for Diagnosing Discopathy Lumbosacral Pathologic Gait: A Preliminary Research
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DOI：
10.3390/diagnostics10060342
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发表时间：
2020-06-01
期刊：
影响因子：
3.6
通讯作者：
Grochulska, Agnieszka
中科院分区：
文献类型：
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作者：
Glowinski, Sebastian;Losinski, Karol;Grochulska, Agnieszka
背景：本研究的目的是确定腰骶（L-S）节段失湿对步态参数的影响。惯性传感器用于确定步态的病理参数。方法：纳入4例患者（44岁、46岁、42岁和38岁）。首先，调查的目的是通过无创医学测试来分析每位患者的磁共振成像（MRI）。其次，利用惯性传感器计算了左、右膝关节屈伸关节角；进行统计学分析。应用小波变换对加速度数据中的周期信息进行分析。结果：脱位患者站立期膝关节屈曲量明显低于正常侧（健康侧），可能提示偏心性控制较差或存在疼痛回避机制。在初始摇摆阶段观察到最大的差异。在这个阶段，膝关节的下肢弯曲在整个步态周期中达到最大值。结论：通过目测来量化步态中膝关节角度是困难的。惯性测量单元（IMU）系统可用于确定脊柱损伤水平及其程度。在椎间盘疾病的第一阶段，可能接受保守治疗的患者，也可能部分推迟或完全排除进行复杂的MRI成像检查的决定，通常在疾病的这一阶段显示假阳性结果。
Background: the goal of the study is to ascertain the influence of discopathy in the lumbosacral (L-S) segment on the gait parameters. The inertial sensors are used to determine the pathologic parameters of gait. Methods: the study involved four patients (44, 46, 42, and 38 years). First, the goal of the survey was to analyze by a noninvasive medical test magnetic resonance imaging (MRI) of each patient. Next, by using inertial sensors, the flexion-extension of joint angles of the left and right knees were calculated. The statistical analysis was performed. The wavelet transform was applied to analyze periodic information in the acceleration data. Results: in the patients with discopathy, the amount of knee flexion attained during stance phase is significantly lower than that of normal (health side), which could indicate poor eccentric control or a pain avoidance mechanism. The biggest differences are observed in the Initial Swing phase. Bending of the lower limb in the knee joint at this stage reaches maximum values during the entire gait cycle. Conclusions: It has been difficult to quantify the knee angle during gait by visual inspection. The inertial measurement unit (IMU) system can be useful in determining the level of spine damage and its degree. In patients in the first stages of the intervertebral disc disease who may undergo conservative treatment, it may also partially delay or completely exclude the decision to perform a complicated imaging examination which is MRI, often showing a false positive result in this phase of the disease.