Use of the normalcy index for the assessment of abnormal gait in the anterior cruciate ligament deficiency combined with meniscus injury
Use of the normalcy index for the assessment of abnormal gait in the anterior cruciate ligament deficiency combined with meniscus injury
复制标题
正常指数在前交叉韧带缺损合并半月板损伤步态异常评估中的应用
DOI：
10.1080/10255842.2020.1789119
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发表时间：
2020-07-08
影响因子：
1.6
通讯作者：
Ao, Yingfang
中科院分区：
文献类型：
--
作者：
Liu, Xiaode;Huang, Hongshi;Ao, Yingfang
正常指数（normal index， NI）作为一种简单的指标，已被一些研究应用于定量分析缺乏步态异常，如脑瘫儿童和特发性足趾步行者。然而，NI是否可以用于不同类型半月板损伤的前交叉韧带（ACL）缺陷，尚未见报道。在本研究中，25例合并不同类型前交叉韧带和半月板损伤的患者通过NI分析进行评估。选取12名健康受试者确定NI的正常范围。结果显示，患者的NI值明显大于对照组（P < 0.05）。同时，最小组中只有5名受试者的NI值升高趋势与病理加重相关（Jonkheere-Terpsta检验：P < 0.001）。这些结果表明，NI是一种简洁而有效的评估前交叉韧带和半月板合并损伤患者的工具。ACL破裂患者半月板撕裂严重程度的增加与NI值的增加相对应。研究还表明，所提出的NI可以作为一种鲁棒性因子，用于检测健康受试者和患者之间的临床差异，并在术前或术后和康复的定量评估中具有潜力。
Abstract The normalcy index (NI) has been implemented by several studies as a simple index for quantitatively analyzing diffident gait abnormalities, such as children with cerebral palsy and idiopathic toe-walkers. However, whether the NI can be used in anterior cruciate ligament (ACL) deficiency with different types of meniscus injuries or not, has not been reported yet. In this study, 25 patients who combined different types of ACL and meniscus injuries were evaluated by the NI analysis. 12 healthy subjects were used to define the normal range of NI. The result showed that NI values of patients were significantly larger than the control group (P < 0.05). Meanwhile, the tendency of increasing NI values associated with increasing pathology were significant with only 5 subjects in the smallest group (Jonkheere-Terpsta test: P < 0.001). These results indicated that the NI was a concise yet effective tool to evaluate combined ACL and meniscus injury patients. Increasing severity degree of meniscus tears in ACL rupture patients is corresponded to increasing NI values. It also demonstrates that the proposed NI can be applied as a robustness factor to detect the discrepancy between healthy and patient subjects clinically, and has the potential in the quantitative evaluation of pre- or post-surgery and rehabilitation.