Hi.. The pain and soreness what you have post surgery while rehabilitation is normal to some extent because of soreness there could be mild swelling around knee.. Numbness and tingling sensation what you experience in your foot is due to swelling in the leg that could be compressing the neural structures which in turn tightens up your calf muscle... Now... Don t worry about your current symptoms as they could easily solved by simple care... I suggest you the following... Take a bit easy in your rehab...start with mild strengthening exercises without exerting too much.. keep icing your knee frequently... Keep it compressed with compression bandage... keep it elevated and keep moving your ankle to and fro to facilitate the reduction in swelling..thus solves your tingling and numbness sensation in foot Knead mildly over your calf muscles and relax it... keep working on your gluteus strengthening like bridging...pressing a pillow with heel etc... once everything get back to normal gradually progress with rehab wish you a speedy recovery Hope this is helpful Revert back in case you need further clarification...