Best of luck with the TKR. Is a sport medicine doc doing it? The sports med docs I've known had you riding on a trainer or stationary bike within a week after the surgery.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.