Exercises will help increase circulation to your legs and feet, which is important for preventing blood clots post any joint replacement surgeries.
They will also help strengthen your muscles and improve knee movement. Start the exercises as soon as you are able.
Although you can go home on the same day as surgery, recovering from anterior cruciate ligament, ACL surgery, PLC surgery, MCL surgeries, ankle ligament surgery, is not a quick process. From the time you first undergo surgery through full rehabilitation, the process can take up to a few months or more.
You need to take it easy and follow a rehabilitation program to strengthen the muscles around the joint and to regain full range of motion.