A healthy knee has joint fluidJoint Fluid
A transparent, lubricating fluid secreted by a membrane of an articulation (place of union between two or more joints) or bursa (a saclike body cavity between a tendon and bone) that acts like a shock absorber to cushion and protect the knee. A knee with osteoarthritisOsteoarthritis
Arthritis typically with onset during middle or old age that is characterized by degenerative (gradual deterioration of joint) and sometimes abnormal growth in the bone and cartilage of one or more joints and a progressive wearing down of opposing joint surfaces with consequent distortion of joint position and is marked symptomatically especially by pain, swelling, and stiffness; abbreviation (OA) has little or no joint fluid, causing pain and possibly swelling.
ORTHOVISC® works as a series of knee injections to restore healthy fluid to your knee joint. Given as one injection per week for three or four consecutive weeks, ORTHOVISC® can relieve your knee pain for up to six months. While individual results may vary, some people feel pain relief after the first knee injection.