骨关节炎对你的膝盖影响多大

健康的膝盖
健康的关节中,称为软骨的弹性组织可以缓冲骨骼末端与邻接关节的接触力。称为滑液膜的一薄层平滑组织,覆盖其它表面并且释出一种液体润滑膝盖。

大腿骨 软骨 滑液膜 滑液 胫骨

大腿骨
膝盖是身体中最大的关节,且是最复杂的之一。由胫骨(tibia)、大腿骨(femur)以及膝盖骨(patella)组成。
 

罹患骨关节炎的膝盖
膝盖骨关节炎始于软骨渐渐退化。在失去软骨保护下,骨骼开始互相摩擦、引起疼痛、失去活动力、甚至残废。

软骨磨损 滑液

软骨磨损
软骨受伤且渐渐磨损,使得骨骼表面彼此摩擦。
 


MEDICAL REVIEW: Reviewed by Brunilda Nazario, MD on December 02, 2008

SOURCE DOCUMENTATION: The Merck Manual, 17th edition.

LEGAL DISCLAIMER: This tool is for general information purposes only and does not address individual circumstances. It may not be right for you and should not be relied upon in making decisions about your health. Always consult your doctor for medical advice.

© 2007 WebMD Inc. All rights reserved.