Scot Prohaska, Frederik Andersen, Prem Ramkumar, MD
(This case is shared with patient permission.)
What to Know
- Frederik Andersen underwent knee surgery during the 2024-25 NHL season
- The procedure addressed a knee condition related to the unique physical demands placed on NHL goaltenders
- Surgery was performed by Dr. Prem N. Ramkumar, an orthopedic sports medicine specialist focused on high-performance knee conditions
- Andersen successfully returned to play later in the season and participated in the NHL playoffs
- Recovery timelines for this type of procedure typically range from 8-12 weeks, however, performance progression continued beyond initial clearance
What Happened to Frederik Andersen?
During the 2024-25 season, Frederik Andersen was sidelined with a knee condition that ultimately required surgical intervention.
As the Carolina Hurricanes’ starting goaltender, Andersen’s absence had a significant impact on lineup stability during a key stretch of the season. He underwent surgery, progressed through recovery, and ultimately returned to game when he rejoined the team during the playoff push.
What Type of Surgeries Do NHL Goalies Typically Require
While specific procedural details vary, surgeries in NHL goaltenders commonly involve arthroscopic techniques to address:
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- Meniscus damage (repair or debridement)
- Cartilage wear from repetitive load
- Inflammation tied to rotational stress
The butterfly position places goaltenders’ knees under extreme rotational force while fully flexed, which creates a very specific injury profile compared to other athletes.
Surgeon Perspective: Dr. Prem N. Ramkumar
Dr. Prem N. Ramkumar explains:
“NHL Goaltenders’ knees are consistently subjected to extreme rotational stress in deep flexion. In returning goaltenders to play, my focus is not only to repair the injury but to restore the overall stability so the knee can continue performing under this high level of stress.
While returning my patients to play is one milestone, returning them to performance is the ultimate success, especially in a highly competitive playoff environment.”
Why Goaltender Recovery Is Different
Since NHL goaltenders rely heavily on the butterfly technique, which places the knee in a position of deep flexion and internal rotation with repeated lateral force and impact, the recovery must go beyond healing. Recovery from injury for the elite goalie must:
- restore confidence in movement
- rebuild explosive lateral push
- tolerate repeated high-load stress
Recovery Timeline: More Than 8-12 Weeks
While initial recovery timelines for these injuries often fall within 8-12 weeks, elite athletes understand that medical clearance does not equal peak performance. Game speed, reaction time, and endurance generally take longer to normalize and their team must expect that their performance will likely be variable during initial return to play.
Andersen’s return during the same season, and his ability to compete in the playoffs, demonstrates both successful surgical intervention and a structured recovery progression.
The Integrated Model Behind the Recovery
Dr. Ramkumar’s approach emphasizes a connected, performance-driven model of care, aligning:
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- Surgical planning
- Rehabilitation progression
- Return-to-play strategy
This integrated model takes an elite athlete through a more efficient transition from injury to a return to competition, rather than treating these as isolated phases.
What Frederik Andersen’s Return Means in a Playoff Context
Performing under pressure in the NHL playoffs is the standard, so Andersen’s return to high level play with the Carolina Hurricanes after his injury required restored stability in net, the ability to rely on an experienced starting goaltender and improved consistency during high-stakes games.
In elite sports, injuries are often discussed in terms of standard timelines; however, the real measure of post-surgical success revolves around player availability and performance level.
In this case, Andersen’s progression from surgery to returning in a playoff environment illustrates the goal of Dr. Ramkumar’s team, and modern sports medicine in general. Our goal is not just to enable participation but to restore the athlete’s ability to compete at the highest level.
