Standard library functions. The standard library functions are built-in functions in C programming to handle tasks such as mathematical computations, I/O processing, string handling etc. These functions are defined in the header file. When you include the header file, these functions are available for use.
Knee replacement. Knee replacement, also known as knee arthroplasty, is a surgical procedure to replace the weight-bearing surfaces of the knee joint to relieve pain and disability. It is most commonly performed for osteoarthritis,[1] and also for other knee diseases such as rheumatoid arthritis and psoriatic arthritis.
In this article. If a disease such as rheumatoid arthritis or an injury has harmed your elbow, your doctor may recommend surgery to replace the joint, so you have less pain and can move better.During elbow replacement, a surgeon replaces your elbow with an artificial joint made from two implants that attach to the bones in your arm.A metal and plastic hinge joins the implants together. The procedure is similar to hip and knee replacements. You want a surgeon who has a lot of experience.uring elbow replacement, a surgeon replaces your elbow with an artificial joint made from two implants that attach to the bones in your arm. A metal and plastic hinge joins the implants together. The procedure is similar to hip and knee replacements.