Hip arthroscopy the possible pitfalls of large, open surgery. The perceived advantages of this are the avoidance of large scars, decreased blood loss, faster recovery periods and less pain. Hip arthroscopy can be performed as an outpatient procedure (i.e. no need to stay in hospital overnight). Hip arthroscopy was initially used for the diagnosis of unexplained hip pain, but is now widely used in the treatment of conditions both in and outside the hip joint itself. The most common indication is for the treatment of FAI (femoral acetabular impingement) and its associated pathologies such as labral tears and cartilage abnormalities, among others
Effect of spaceflight on the human body of motion sickness for the first three days of travel due to the conflict between what the body expects and what the body actually perceives. Over time however the brain adapts and although these illusions can still occur, most astronauts begin to see "down" as where the feet are. People returning to Earth after extended weightless periods have to readjust to the force of gravity and may have problems standing up, focusing their gaze, walking and turning. This is just an initial problem, as they recover these abilities quickly. NASA jokingly measures SAS using the "Garn scale", named for United