Zhitnik made his NHL debut on October 6, 1992, against the Calgary Flames and scored his first goal nine nights later, also against Calgary. In his rookie season with the Kings, he finished second among rookie defenceman in points with 48. He was an important part of the Kings' playoff[broken anchor] run to the Stanley Cup Finals, where they lost to the Montreal Canadiens.
Following the lockout, Zhitnik signed a four-year contract with the New York Islanders. He became an effective force on the team, and even though he missed the last 18 games of the season with a fractured ankle, he finished second among team defenceman in scoring.
On December 16, 2006, Zhitnik was traded to the Philadelphia Flyers for Freddy Meyer and a conditional third-round draft pick.[1] However, he was traded two months later on February 24, 2007, to the Atlanta Thrashers to add experience for playoffs, in exchange for Braydon Coburn.
Due to Zhitnik's disappointing play and the Thrashers focus on rebuilding, the team bought out Zhitnik's contract on June 30, 2008, making him a free agent.[2] On July 26, 2008, Zhitnik joined the Kontinental Hockey League, signing a tryout contract with Dynamo Moscow.
He played for Ukraine at the Maccabi “Jewish Olympics” in 2013 and 2017. Zhitnik also won a gold medal as part of Team Ukraine's Masters hockey team at the 2017 Maccabiah Games.[3]
As of 2022, Zhitnik was assisting Ukrainian forces after the Russian invasion of Ukraine, as well as helping Ukrainian women and children escape to safe countries.[4]