It is possible you could have a real leg discrepancy, but not very likely. Much more likely is that your body just needs time to adjust to the new alignment. You’re very, very new out of surgery, so you need to let things settle for months before worrying about a real leg discrepancy. They are more of a problem with hip replacements anyway. Once you get to the point where you have outpatient therapy, hunt for someone who is trained in gait analysis and dealing with problems after a knee replacement.
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