"We are all in good spirits," he added.
The possibility of Marshall playing again in the 2012 NCAA Tournament remains on the table.
UNC confirmed on Monday afternoon that Dr. Don Bynum inserted a screw to stabilize the fracture during the procedure at UNC Hospitals.
Head coach Roy Williams said a determination of whether or not Marshall can play in North Carolina's Sweet 16 game will be made later in the week. The Tar Heels face Ohio on Friday at 7:47 p.m. in St. Louis.
Marshall -- the leading candidate for the Cousy Award, given to the nation's top point guard -- suffered a fractured scaphoid bone in his right wrist during Sunday's NCAA Tournament third round game. He fell to the ground and used his right hand to brace his fall after being fouled by Creighton's Ethan Wragge at 10:56 in the second half.
The sophomore shot two free throws after a media timeout, making the first. He subbed out at 10:24, but returned at the 8:52 mark. Marshall missed another free throw with 7:09 remaining, but did not attempt another shot before exiting the game for good with 1:54 to play.
"When I first fell, it was more of my funny bone that hurt," Marshall said postgame. "But it started hurting a little bit more as the game wore on."
When asked when he felt the most pain, Marshall replied: "Any time I tried to dribble with my right hand."
Marshall posted a team-high 18 points and 11 assists in the win.
Marshall has 351 assists in 36 games this season, the most in Atlantic Coast Conference history and the fourth most in NCAA history. He had 18 points and 11 assists against Creighton, his fifth double-double in the last six games.
The Dumfries, Va., native is averaging 8.1 points and 9.8 assists for the season. He leads the NCAA in assist-error ratio at 3.5 to 1(second-best in ACC history) and is averaging 9.8 assists per game, the second-highest figure in the nation, the eighth-highest in NCAA history and the best in ACC history.
Marshall is averaging 14.8 points and 10.3 assists in the last six games. He became only the second Tar Heel to have consecutive double-doubles in points and assists in NCAA Tournament history.
UNC Athletic Communications contributed to this report.
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