WILMINGTON — [UPDATE: 5:54 p.m.] Bruins defenseman Mark Stuart is out for four-to-six weeks with a broken hand, an injury suffered in the first period of Tuesday’s 3-2 overtime win over the Sabres. Peter Chiarelli issued the following statement Wednesday:

“Mark sustained a fracture to the 4th metacarpal of his right hand (ring finger) and dislocated his 4th metacarpal phlangeal joint. He was evaluated by Dr. Matt Leibman at Newton-Wellesley Hospital and is expected to miss approximately 4-6 weeks.”

In 26 games this season, Stuart has two assists and is a plus-3. His 16:43 of ice time per night is fifth among Bruins blueliners, and his 23 penalty minutes is tied for sixth on the team.

With Stuart out, the team recalled Steven Kampfer from Providence on an emergency basis. The 22-year-old Michigan product led all Providence defensemen with 16 points.

WILMINGTON — The newly recalled Steven Kampfer took the ice with the Bruins as the team held practice Wednesday at Ristuccia Arena. The team summoned the 22-year-old on an emergency basis following the upper-body injury sufferered by Mark Stuart in Tuesday’s game.

Stuart, as one could have guessed, was not on the ice in practice. He left in midway through the first period of the team’s 3-2 overtime victory over the Sabres. Everybody else was accounted for at practice, including Marco Sturm.

Kampfer was second on the Providence Bruins in scoring with 16 points (3-13) through 20 games.