3-D printing becoming more routine in knee replacements

Long receiving cortisone shots in his knee to relieve arthritis-related pain, 81-year-old Simon Pulitzer was left to rely on a cane to get around.

Pulitzer, who endured the strenuous process to replace his left knee more than a decade ago, knew it was time to undergo the surgery again — this time on his right knee. When he found out that new technology could refine the process, he listened.