Extravasation a number of types of endoscopic surgery, such as minimally invasive orthopedic surgery, i.e. arthroscopy, TURP (trans-urethral resection of the prostate) and TCRE (trans-cervical resection of the endometrium). In arthroscopy, fluid under pressure is used to inflate and distend a joint and make a working surgical space. Arthroscopy is typically performed on shoulder and knee joints; however, hip arthroscopy is becoming more popular. Arthroscopy is done by making surgical portals or puncture wounds into the joint. A surgical instrument called an arthroscope is used to introduce irrigation fluid under pressure to distend the joint. The arthroscope includes a small (typically
Effect of spaceflight on the human body space propulsion systems have been examined for over a century, and millions of man-hours of research have been spent on them. In recent years there has been an increase in research on the issue of how humans can survive and work in space for extended and possibly indefinite periods of time. This question requires input from the physical and biological sciences and has now become the greatest challenge (other than funding) facing human space exploration. A fundamental step in overcoming this challenge is trying to understand the effects and impact of long-term space travel on the human body. In October