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.
Medications that people receive after knee replacement surgery are given to minimize pain and nausea, prevent blood clots, and reduce the risks of surgical site infections. With time and an emphasis on early mobility, people who receive a knee replacement are finding relief and finally taking steps without pain and discomfort.