Dr. Joshua Jacobs, an orthopedic surgeon, displays a model of a cementless hip replacement in 2014. M. Spencer Green/AP It all began with a single X-ray. It was 1974, and surgeons had been doing total hip replacements for a dozen years. “Total hip replacement is an absolutely magnificent operation,” says Dr. William H. Harris, … Continue reading The Mysterious Case Of ‘Vanishing Bone’ And Hip Replacements Gone Wrong