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.
Your Replacement Knee Prosthesis. To create a new knee joint, the ends of the bones forming the joint are surgically removed. The cartilage coating the bones has been worn away and replaced or resurfaced with the new device. It is better to think of a knee replacement as a resurfacing of the knee.