Analysis of mechanical characteristics of the foot of painful type Ⅱ accessory navicular based on CT images
10.3969/j.issn.1002-1671.2024.01.019
- VernacularTitle:基于CT图像分析疼痛性Ⅱ型副舟骨足部力学特征变化
- Author:
Dongxue LIU
1
;
Xiaozhong LI
Author Information
1. 北华大学附属医院放射科,吉林 吉林 132001;甘肃中医药大学第一临床医学院,甘肃 兰州 730020
- Keywords:
accessory navicular;
posterior tibial tendon;
computed tomography
- From:
Journal of Practical Radiology
2024;40(1):84-87
- CountryChina
- Language:Chinese
-
Abstract:
Objective To quantitatively measure the morphological parameters of type Ⅱ accessory navicular(AN)in CT images and analyze the mechanical changes in the foot caused by painful type Ⅱ AN.Methods The CT images of 51 patients with type Ⅱ AN were analyzed retrospectively;According to whether the medial foot was painful,we divided the data into two groups,including the pain type Ⅱ AN group(case group)and the non-pain type Ⅱ AN group(control group).The measured data included the navicular and medial joint space(MeJS),middle joint space(MiJS),lateral joint space(LJS),talar-accessory navicular distance(TAND),the maximum diameter(MaD)and minimum diameter(MiD)of AN,and the difference of the relevant data using independent sample t-test was measured.Results Compared with the control group,the MeJS,MiJS,and LJS in the case group showed that the joint space of painful type Ⅱ AN was widened,and there was a significant difference(P＜0.05).Compared with the control group,the TAND,MaD,and MiD of the case group had no significant change,and there was no significant difference(P＞0.05).Conclusion In pain-ful type Ⅱ AN foot,the posterior tibial tendon(PTT)is attached to AN,which destroys the balance of force on the foot,resulting in the widening of the distance between the navicular and AN.
