Application of Computer Image Process to the Research on the ContactCharacteristics of Subtalar Joint
10.3321/j.issn:1001-5515.2001.02.037
- VernacularTitle:计算机图像处理技术在人体矩下关节接触特征研究中的应用
- Author:
Dongyun GU
1
;
Kerong DAI
;
Wen SHUI
;
Wei SHEN
;
Rongguan TANG
Author Information
1. Shanghai Second Medical University
- From:
Journal of Biomedical Engineering
2001;18(2):309-311
- CountryChina
- Language:Chinese
-
Abstract:
With the use of computer image processing technology , a new method was proposed for studying the contact characteristics of the subtalar joint. The results showed the total subtalar articulation area was 9.52±0.40 cm2. On neutral position and under 600N load, the contact area of the subtalar joint was 2.00±0.11cm2. The contact area of the posterior articulation was significantly larger than that of the anterior and medial articulation (p<0.01). The average contact pressure was 19.3±1.38N, the force transmitted by the subtalar was 389.16±28.75N, which accounted for about 64.86% of the applied shank load(600N), and 69.39% of the force was transmitted by the posterior articulation. The posterior articulation plays an important role in the load. The fracture line of the calcaneus often appears in this area.
