First baseman Nick Johnson had two screws removed from his right leg on Tuesday in Sacramento.
The procedure, performed by Dr. Richard Marder, was done to further advance healing. Johnson broke his leg on Sept. 23 in a collision with Austin Kearns at Shea Stadium.
Johnson said recently that he most likely will not be ready for Spring Training or Opening Day.
"I'm progressing a lot, but I still don't have my range of motion," Johnson said. "I still have a limp. There is still pain there. I'm having bigger gains each week. I have to be able to walk right before I can do [any baseball activities]. It comes down to time. You have to let it heal. I wish it was cold where you have the ability to get rid of it."
Bill Ladson is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.