Tennis two months after surgery Details Category: How my life changed after knee replacement Written by TennisKnee I had my knee replaced October of 2012. Therapy procedure at home and then at clinic went very well and was terminated slightly early because of early progress. I resumed bicycle riding before one month was up and playing tennis (carefully) prior to two months after surgery. Now seven months after operation I have resumed all normal activity. Although unusual movements still remind me that I've had a knee replacement, it continues to get better every day. Alternatively, without this surgery I would have probably become a couch potato.