The chromic edema,muscled atrophy, joint stiffness, and disuse osteoporosis that can result from knee joint immobilization, because of lower limb fracture surgery.

• 下肢骨折手术后，长期卧床和膝关节制动可引起关节肿胀、肌肉萎缩、关节僵硬、骨质疏松，最终导致膝关节功能障碍。