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.
A unicompartmental knee replacement is sometimes used instead of a total knee replacement when only one side of the knee has been damaged by osteoarthritis. Unicompartmental knee replacements involve smaller incisions, less bleeding, quicker recovery, and less bone loss than a total knee replacement.n artificial knee is not a normal knee, nor is it as good as a normal knee. The operation will provide pain relief for at least ten years. If replacement provides you with pain relief and if you do not have other health problems, you should be able to carry out many normal activities of daily living.