Experimental Study on Reverse Mechano-Electric Characteristics of Layered Structure of Articular Cartilage
10.16156/j.1004-7220.2025.05.004
- VernacularTitle:关节软骨分层结构逆力-电特性实验研究
- Author:
Le ZHAO
1
;
Zhengbiao YANG
;
Meng ZHANG
;
Jing CHEN
;
Pengcui LI
;
Yanqin WANG
;
Yanru XUE
;
Xiaogang WU
;
Xiaochun WEI
;
Weiyi CHEN
Author Information
1. 太原理工大学人工智能学院,太原 030024
- Publication Type:Journal Article
- Keywords:
articular cartilage;
reverse mechano-electric characteristics;
external electric field;
joint defects;
deflection
- From:
Journal of Medical Biomechanics
2025;40(5):1114-1121,1135
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the reverse mechano-electric effect of the layered structure of articular cartilage and its influencing factors.Methods The cartilage samples were classified according to their physiological thickness(approximately 0.4 mm for the upper layer,1 mm for the middle layer,and 0.6 mm for the lower layer).Through a non-contact external electric field testing method,how different influencing factors affected the reverse mechano-electric effect of articular cartilage was analyzed.Results When the electric field spacing decreased,water content increased,and in vitro time decreased,the displacement of normal layered cartilage in a non-contact electric field increased by 18,10,15 μm,respectively.In the case of simulated arthritis defects,as the defect depth and radius increased,the overall deviation deflection of articular cartilage gradually decreased by about 7 μm.Conclusions The three-layer cartilage differed in their reverse mechano-electricity effects,showing the greatest deflection in the middle layer at 90％water content,under 7 mm electric field spacing,and after 12 hours ex vivo.
