Did those trade-deadline deals really pay off?

Remember the sound and the fury that was the trade deadline? With hours left in the regular season, wonder what it all signified?

Here's a look at significant trade-deadline moves and what they've yielded, or haven't as the case may be.

Keith Tkachuk/Alexei Zhitnik to Atlanta
We consider Tkachuk (pictured) and Zhitnik in the same breath, not only because of the interesting consonant groupings in their names, but also because Atlanta GM Don Waddell acquired them within a 12-hour period before the Feb. 27 trade deadline. Prior to their acquisition, the Thrashers were floundering and had frittered away a giant Southeast Division lead. But since their arrival, the two combined for 26 points in 15 games prior to Wednesday's tilt against Washington. Tkachuk has given the Thrashers some snarl down the middle and Zhitnik is logging 25:44 a night on what is admittedly an ordinary Atlanta back end. Oh yeah, the Thrashers also locked up their first playoff berth. Guess it worked out.

Eric Belanger to Atlanta
Lost in the shuffle in the Tkachuk/Zhitnik deals was the acquisition some days earlier of versatile forward Eric Belanger. Coach Bob Hartley recalled Belanger's grit and skill from the days when Hartley was the bench boss in Colorado and Belanger was toiling for the LA Kings. Hartley figured Belanger would be a good fit. He was right. Since his arrival, Belanger has 13 points in 21 games and has helped turn around the Thrashers' penalty-killing unit, which ranked near the bottom of the league for most of the season (it's now 26th).

Bill Guerin to San Jose
The rugged forward who rediscovered his scoring touch in St. Louis this season has been a boon to the red-hot Sharks with eight goals in 15 games. He's been nursing a sore groin, so the Sharks are being cautious. Guerin's real value will be in the postseason, when he'll likely play with captain Patrick Marleau and try and help take scoring pressure off former Boston teammate Joe Thornton.

Craig Rivet to San Jose
San Jose GM Doug Wilson's acquisition of the veteran defender from Montreal has helped stabilize a talented, if inexperienced, blue-line corps. Rivet has eight points in 14 games as a Shark and is logging 23:21 a night in ice time. Come playoff time, he'll be a big help to rookie defensemen Matt Carle and Marc-Edouard Vlasic.

Anson Carter to Carolina
Everyone raved at Jim Rutherford's steal of the former 33-goal man from Columbus for a fifth-round draft pick. Turns out Blue Jackets GM Doug MacLean got the best of the deal. Carter was often a healthy scratch down the stretch and produced no goals and no assists in nine games. About to become a free agent, Carter has seen his stock tumble dramatically over the course of this season. As for the Hurricanes, they were eliminated from the playoff race Tuesday night.

Ladislav Nagy to Dallas
The Stars have been cooking right along, challenging Anaheim and San Jose for the Pacific Division title. But they'll need to get a whole lot more out of Nagy if they hope to shake their playoff demons. GM Doug Armstrong gave up a first-round pick and forward Mathias Tjarnqvist to Phoenix for the talented winger, but Nagy has produced just four goals in 22 games and is a minus-6. Tjarnqvist has actually outscored Nagy by one -- not a good sign.

Ryan Smyth to New York Islanders
No deadline move was as shocking as Edmonton's last-second dealing of heart-and-soul winger Smyth to the Islanders. The Oilers immediately went into a complete freefall, while Smyth has chipped in 13 points in 15 games on Long Island. He'll need to provide some heroics to get the Isles into the postseason, though. Oddly enough, GM Garth Snow's better move might be the acquisition of Smyth's Edmonton teammate, defenseman Marc-Andre Bergeron, who has 18 points in 20 games and has evolved quickly into the team's power-play quarterback.

Yanic Perreault to Toronto
The Leafs paid a heavy price -- defensive prospect Brendan Bell and a second-round draft pick -- to put Perreault in blue and white for the third time in his career. After a surprise selection to the Western Conference All-Star team, Perreault has managed just two goals and four points in 15 games for the playoff-hungry Leafs. His ice time has been slashed in half since coming to Toronto. Of course, if he wins a big draw and the Leafs sneak into the playoffs, it will all have been worth it. It just doesn't look like that's going to happen, though.

Peter Forsberg to Nashville
The Predators were already locked into a playoff berth when GM David Poile made his stunning move to bring in the former league MVP. While Forsberg has been fine when in the lineup, chipping in 12 points in 15 games, the Preds seem to be off the rails, falling behind Detroit in the race for the conference title as the playoffs approach. With two games left, the Preds are actually in danger of falling to the fifth seed, losing home-ice advantage in the first round. Still, Forsberg has shown he can overcome injury to become a potent playoff scorer, which is just what Nashville will need if it is to advance beyond the first round.

Gary Roberts to Pittsburgh
Although the rugged veteran has been a fine addition to the youthful Penguins with 11 points in 17 games, his real value will come in what looks to be a first-round matchup with the Ottawa Senators. Everyone knows the Penguins have talent, but Roberts' job will be to show his inexperienced teammates the hard work and preparation it takes to turn talent into playoff success.

Todd Bertuzzi to Detroit
Well, Bertuzzi has passed his first series of tests since being acquired by the Red Wings for conditional draft picks. First, he's played, a significant achievement given he is recovering from back surgery and hadn't played since early October. He also hasn't ticked anyone off in the Red Wings dressing room, at least not as far as we can tell. His four points in seven games is a bonus for a Red Wings team that will almost certainly win its second straight Presidents' Trophy, but has lacked postseason toughness and timely scoring. Those are elements Detroit is counting on Bertuzzi to bring.

Sean Avery to New York Rangers
Plenty of Sean Avery jokes made the rounds when the Rangers added the abrasive forward prior to the trade deadline. Now, of course, Avery is rivaling netminder Henrik Lundqvist as the most popular guy in Manhattan, and with good reason. He has 19 points in 27 games, providing the Rangers an unexpected dose of chutzpah and grit without losing his mind in the process. He is an impressive plus-10 for coach Tom Renney (he was minus-10 in Los Angeles) and is a major factor in the Rangers' surge to a second straight postseason berth.

Scott Burnside is the NHL writer for ESPN.com.