医学
尸体痉挛
月牙
滑液
运动学
手腕
解剖
口腔正畸科
骨关节炎
物理
病理
经典力学
替代医学
作者
Yiik Diew Wong,Sophie Sok Huei Tay,Ita Suzana Mat Jais,Hwa Liang Leo,Chee-Fui Lieu,Samuel Sam Wah Tay
出处
期刊:The journal of hand surgery
[World Scientific]
日期:2019-04-29
卷期号:24 (02): 169-174
被引量:2
标识
DOI:10.1142/s242483551950022x
摘要
Background: The interaction between wrist kinematics and synovial fluid pressure has yet to be studied. To our knowledge, this is the first study to determine the effect of scapholunate joint kinematics on synovial fluid pressure change using finite volume method. Methods: The carpal bones of a cadaveric hand were obtained from Computed Tomography (CT) scans. CT images of the carpal bones were segmented and reconstructed into 3D model. The 3D synovial fluid model between the scaphoid and lunate was constructed and then used for computational simulations. The kinematics data of scapholunate joint obtained from radioulnar deviation of the wrist was investigated. Results: It was found that the pressure in synovial fluid varied from -1.68 to 2.64 Pa with maximum pressure located at the scaphoid-fluid interface during the radial deviation. For ulnar deviation, the pressure increased gradually from the scaphoid-fluid interface towards the lunate-fluid interface (-1.37 to 0.37 Pa). Conclusions: This new computational model provides a basis for the study of pathomechanics of ligament injury with the inclusion of synovial fluid.
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