Morphological Study of Adult Infrapatellar Fat Pad Thickness Measured by MRI
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摘要:
目的 探讨基于MRI测量成人髌下脂肪垫厚度的可行性及成人髌下脂肪垫厚度与性别、年龄、体重、身高的相关性，为全膝关节置换时考虑保留髌下脂肪垫厚度提供依据。 方法 随机抽取1 019例18～80岁成人膝关节磁共振扫描的影像作为研究对象，取膝关节正中矢状面影像作为测量层面，以髌下脂肪垫前缘画一基线，取其与脂肪垫后缘最远点的距离作为测量厚度，测量结果采用 SPSS26.0统计学软件包进行统计学分析。 结果 男性髌下脂肪垫平均厚度大于女性，分别为（28.08±4.64）mm 和（24.58±4.22）mm，差异有统计学意义（P < 0.05）；男性与女性年龄分别为（49.09±17.78）岁和（50.42±17.88）岁，差异无统计学意义（P > 0.05）；男性身高、体质量均大于女性，差异有统计学意义（P < 0.05），考虑为生理性差异；男性髌下脂肪垫厚度与年龄、身高、体重均无相关性（P > 0.05）；女性髌下脂肪垫厚度与体重具有相关性（P < 0.05），与年龄、 身高均无相关性（P > 0.05）。 结论 男性髌下脂肪垫平均厚度大于女性且与年龄、身高、体重没有相关性，而女性脂肪垫平均厚度与体重具有一定的关联。 Abstract:Objective To investigate the feasibility of measuring the thickness of adult subpatellar fat pad based on MRI and the correlation between the thickness of adult subpatellar fat pad and sex, age, weight and height, to provide the basis for keeping the thickness of subpatellar fat pad in total knee arthroplasty. Methods 1019 cases of 18-80-year-old adult knee MRI scan images were randomly selected as the research object, and the median sagittal image of the knee joint was taken as the measurement plane. The distance of the farthest point of the edge was used as the measurement thickness, the measurement results were statistically analyzed by SPSS26.0 statistical software package, the measurement data of normal distribution were expressed by $\bar x \pm s $ , and the comparison of measurement data of normal distribution between two groups was used two independent samples t Pearson correlation analysis was used for correlation analysis, and P < 0.05 indicated that the difference was statistically significant.Results The average thickness of the infrapatellar fat pad in males was greater than that in females, which were （28.08±4.64） mm and （24.58±4.22） mm, respectively, and the difference was statistically significant （P < 0.05）. The ages of males and females were （49.09±17.78） years old, respectively. and （50.42±17.88） years old, the difference was not statistically significant （P > 0.05）; the height and weight of males were greater than those of females, and the difference was statistically significant （P < 0.05）, which was considered as a physiological difference; male infrapatellar fat pad There was no correlation between the thickness and age, height and weight （P > 0.05）; the thickness of the infrapatellar fat pad in women was correlated with body weight （P < 0.05）, but not with age and height （P > 0.05）. Conclusion The average thickness of subpatellar fat pad in male is larger than that in female and has no correlation with age, height and weight. -
图 1 髌下脂肪垫厚度a测量示意图
a：髌下脂肪垫厚度。
Figure 1. Schematic diagram of measurement of thickness a of infrapatellar fat pad
表 1 男、女一般情况比较（
$ \bar x \pm s $ ）Table 1. General situation comparison between male and female （
$ \bar x \pm s $ ）指标 男 女 t p 脂肪垫厚度
（mm）28.08 ± 4.64 24.58 ± 4.22 12.351 < 0.001* 年龄（岁） 49.09 ± 17.78 50.42 ± 17.88 −1.157 0.247 身高（cm） 170.37 ± 6.09 159.00 ± 5.74 19.900 < 0.001* 体重（kg） 69.13 ± 10.12 57.77 ± 7.94 29.904 < 0.001* *P < 0.05。 
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