Arthroscopy elbow, wrist, ankle, foot, and hip. Knee arthroscopy, or arthroscopic knee surgery, is an ineffective surgery that uses arthroscopic surgical techniques. People who undergo this surgery for "wear and tear" joint pain, including osteoarthritis and meniscal tears, usually have high hopes for the results, but repeated scientific studies have show that they actually end up with results that are no better than if they had skipped all of the pain, disruption, and risks of the surgery and instead only did the many hours of required post-surgery physical therapy. It has, in many cases, replaced the classic open surgery (arthrotomy) that
Composition of the human body g in men, ~2.3 g in women Of the 94 naturally occurring chemical elements, 60 are listed in the table above. Of the remaining 34, it is not known how many occur in the human body. Most of the elements needed for life are relatively common in the Earth's crust. Aluminium, the third most common element in the Earth's crust (after oxygen and silicon), serves no function in living cells, but is harmful in large amounts. Transferrins can bind aluminium. The composition of the human body is expressed in terms of chemicals: The composition of the human body can be