摘要
介绍了应用计算机图像处理技术在人体矩下关节接触特征研究中的具体实施。结果表明 ,人体矩下关节的总面积为 9.5 2± 0 .40 cm2 。中立位负重 6 0 0 N时 ,矩下关节接触面积为 2 .0 0± 0 .11cm2 ,后关节面的接触面积明显大于前中关节面 (P<0 .0 1)。平均接触压力为 19.3± 1.38N,传递的负荷为 389.16± 2 8.75 N,占小腿负荷的6 4.86 % ,其中后关节面传递了 6 9.39%。说明矩下关节后关节面在承重方面起了重要作用 。
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.llcm2. 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.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
2001年第2期309-311,共3页
Journal of Biomedical Engineering
关键词
矩下关节
接触特征
计算机图像处理
Biomechanics
Computer simulation
Image processing
Pressure effects
