Becker's Spine reports that Al Roker, weather anchor on NBC's TODAY show, underwent a total knee revision performed by David J. Mayman, MD, hip and knee surgeon at HSS.

Mr. Roker's recent surgery was a revision of a left knee replacement that he had done 23 years ago. He had a previous right knee replacement surgery in 2016, according to Today.

Mr. Roker posted a video of himself walking down the hallways of a hospital on Instagram on May 10 with the caption, "Up and walking this morning on the #newknee #stepbystep thanks to @drdavidmayman. Wearing a negative pressure pump to help facilitate wound healing."

Read the full article at beckersspine.com. 

Additional coverage: today.com.