Minimally invasive arthroscopic procedure to remove articular cartilage in the knee. Articular cartilage is a firm rubbery tissue that covers the ends of bones. It provides a smooth gliding surface for joints and acts as a cushion between bones. Cartilage can break down due to overuse or injury.
While normal atmosphere contains between 20.8 and 21 percent oxygen, OSHA defines as oxygen deficient any atmosphere that contains less than 19.5 percent oxygen, and as oxygen enriched, any atmosphere that contains more than 22 percent.
Oxygen deficiency is defined as an atmosphere that contains less than the normal percentage (21 percent is considered normal at sea level) of oxygen found in normal air. Oxygen deficiency has been associated with every major disease. This includes cancer, heart disease, and respiratory disease.xygen contributes to ninety percent of our energy. Cancer is believed to have one primary cause and that is that the normal oxygen respiration of the body cells is replaced by oxygen deficient, or anaerobic, cell respiration.