Knee - Osteoarthritis of the joint. Cartilage that cushions the bones of the knee starts to erode eventually allowing the bones to grind or rub together and causing knee pain and stiffness._站酷海洛_正版图片_视频_字体_音乐素材交易平台

Knee - Osteoarthritis of the joint. Cartilage that cushions the bones of the knee starts to erode eventually allowing the bones to grind or rub together and causing knee pain and stiffness.