Following microfracture surgery, rehabilitation exercises play a key part in the healing process. Gentle cardio that repetitively moves the knee is a part of that process and, when performed at the right time, can be an integral part of rehabilitation. It’s important, however, to follow your doctor’s orders specifically, and never begin walking or running as a part of your rehab or workout routine without your doctor’s consent.
Microfracture Surgery
Knee microfracture surgery is performed to repair damaged knee cartilage, and is a common occurrence for athletes, according to MedlinePlus. The surgery is done by drilling small holes in the knee joint that are meant to stimulate the creation of new cartilage. Though the procedure itself is relatively simple, the rehabilitation process can be a long one requiring several stages of increasing intensity as directed by a doctor.
Before Walking
You have to walk before you can run, and before you can walk after microfracture surgery, you have to go through at least seven to eight weeks of rehabilitation. Even minimal walking should be done with the aid of crutches in order to avoid putting any weight on your knee as it heals. During this time, a continuous passive motion (CPM) machine may be used in order to help you increase mobility and decrease your healing time; those without access to the machine may need to bend and straighten the injured leg without putting any weight on it multiple times a day. Stationary bikes or water exercises may be prescribed during this time as well.
Walking
Walking will be the first rehabilitative exercise you do on land that requires putting weight on your injured knee. Your doctor will recommend the specific amount of walking that you should do each day according to your personal level of readiness. Over time, you will increase the amount of walking that you do each day until you are ready for a more intense workout.
Running
It may be quite a while before your doctor gives you permission to include running in your workout. The high-impact nature of the exercise means that your knees and ankles will bear the brunt of every step. This can mean injury and strain even when you are not in recovery after a microfracture surgery. When you are ready to begin to incorporate running into your workout routine, you may be advised to run for only short distances or short periods of time as you continue healing.
Caution
Before you make any changes to your workout routine post microfracture surgery, make sure to get the OK from your doctor. Wear orthotics if prescribed and the most supportive running or walking shoes available to provide you with the best cushion and support possible. If pain returns or if you feel that you have re-injured your knee, contact your doctor immediately.


