一种适用于膝关节积液时髌骨高度的测量方法及与传统方法的比较

A method for measuring the height of patella during knee joint effusion compared with the traditional method

目的探索一种适用于膝关节积液状态下髌骨高度的测量方法。方法回顾性分析2017年6月~2019年6月于我院就诊的50例膝关节积液病人的影像学资料,分别测量每例病人膝关节积液与否时传统髌骨指数以及改良髌骨指数(modified patellar index,MPI)并进行分析和比较。结果评估MPI与传统髌骨指数之间相关性的结果显示,MPI与3个传统髌骨指数均具有较好的相关性(P<0.05)。评估各髌骨指数在膝关节积液前后变化的结果显示,传统髌骨指数在膝关节积液前后均有明显变化(P<0.05),而MPI无明显差异(P>0.05)。结论传统髌骨指数在膝关节积液前后具有显著性差异,而MPI与传统髌骨指数具有较好的相关性,且在膝关节积液前后无显著性变化,可以考虑用于膝关节积液状态下的髌骨高度评估。

Objective To explore a method for measuring patella height in the condition of knee joint effusion.Methods The imaging data of 50 patients admitted to our hospital from June 2017 to June 2019 were retrospectively analyzed.The conventional Patellar Index and the Modified Patellar Index(MPI)were measured and compared in each patient with or without knee joint effusion.Results The correlation between MPI and the traditional patella index were evaluated,and the results showed that MPI had a good correlation with the three traditional patella indexes(P<0.05).Assessment of changes in each patella index before and after knee effusion showed that the traditional patella index had significant changes before and after knee joint effusion(P<0.05),while MPI had no significant difference(P>0.05).Conclusion The traditional patella index has a significant difference before and after knee joint effusion,while MPI has a good correlation with the traditional patella index.There is no significant change before and after knee joint effusion,so it can be considered to evaluate the patella height under the condition of knee joint effusion.