The length of your recovery time will depend on how severe your PCL Injury is, and whether or not you injured other parts of your knee at the same time. The more severe the tear, the longer it will take to heal, and the more structures within the knee you've injured, the more healing you have to do.
The majority of people who sustain PCL Tears will eventually get back to their regular level of activity with no issues. Doing physiotherapy goes a long way towards shortening recovery times.
People who have injured their PCL along with other structures in their knee are more likely to experience lasting issues like occasional knee instability. They are also more likely to develop arthritis of the knee.
Full recovery after PCL surgery usually takes between 6 months to a year, but physiotherapy will start as soon as a week or two after surgery.
Recovery times without surgery vary, and depend on your commitment to rest and rehabilitation. If you have a Grade 1 PCL injury, you should be able to resume most of your usual activities in 2-4 weeks. If you have a Grade 2 PCL Tear, it will probably take 6-8 weeks of rehabilitation before you’re ready to get back to your regular routine.