"Saving My Knees: How I Proved My Doctors Wrong and Beat Chronic Knee Pain" is now on Amazon.com as an electronic Kindle book. I'm still waiting for the product description to be added, but the book is ready to be ordered and downloaded.
Why is it only electronic? That answer's here.
How can you read it? Or buy it if you live abroad? That answer's here.
Now, what if, after following the instructions given on the link above, you still don't have a way to buy or read the book?
Welcome to the trouble-shooting post. I'll fix problems here, best I can. Explain your issue in the comment section below and I promise to periodically update this post with possible solutions.