The Incident
Jack Eichel's injury is the odd one out on this site — not a torn tendon or ligament from a single dramatic moment, but a degenerative neck problem that became one of the most contentious medical disputes in recent NHL history.
Eichel, then captain of the Buffalo Sabres, was diagnosed in March 2021 with a herniated disc in his neck. What followed was not a straightforward rehabilitation story but a monthslong standoff: Eichel and his own team's medical staff disagreed over the right course of treatment. The Sabres' doctors reportedly favored a more conventional approach — either conservative management or spinal fusion surgery. Eichel, advised by outside specialists, wanted an artificial disk replacement (ADR): a procedure that had never been performed on an active NHL player.
The dispute became public and personal. Eichel was stripped of the Sabres' captaincy during the standoff. By November 2021, with no resolution, Buffalo traded him to the Vegas Golden Knights — a trade widely understood to be, in part, about clearing the way for Eichel to have the surgery he wanted.
What Is a Cervical Disc Herniation?
The cervical spine — the neck — is made up of stacked vertebrae separated by discs: soft, gel-like cushions that absorb shock and allow the neck to bend and rotate. A herniated disc occurs when the tough outer layer of one of these discs tears, allowing the softer inner material to bulge or leak out, which can press on nearby nerves or the spinal cord itself.
Unlike Eichel's counterparts elsewhere on this site, this was not a single traumatic tear from one hit or landing — cervical disc herniations in athletes are often the product of cumulative wear, and can develop or worsen gradually before becoming symptomatic. Depending on severity and nerve involvement, symptoms range from neck stiffness to arm pain, numbness, or weakness.
Why the disagreement over treatment? Spinal fusion — permanently joining two vertebrae — is the more established surgical option, but it can reduce neck mobility and, according to some research, place additional stress on the discs above and below the fusion. Artificial disk replacement preserves motion at the affected level by inserting a mobile prosthetic in place of the damaged disc, but at the time, it had a much thinner track record in elite contact-sport athletes — which was exactly what made the Sabres' medical staff cautious.
The Surgical Decision
After the trade to Vegas, Eichel underwent artificial disk replacement surgery in November 2021, performed by Dr. Chad Prusmack in Colorado — the first such procedure on an active NHL player. The Golden Knights' medical staff, unlike Buffalo's, supported the approach.
The choice mattered beyond Eichel's individual case: ADR's central appeal is preserving range of motion, which is especially relevant for a hockey player who needs full neck rotation and extension for on-ice awareness, physicality, and puck-handling — functions a fused spine can restrict.
Rehabilitation: Phase by Phase
Recovery from cervical ADR is shorter than fusion surgery, but still requires a careful, staged return given the stakes of re-injuring the neck in a contact sport.
Phase 1 · Weeks 0–4
Protection & Early Mobility
Limited neck movement and activity as the surgical site heals. Unlike fusion, which requires bone to grow solid before significant loading, ADR's mobile implant allows a comparatively earlier start to gentle range-of-motion work.
Phase 2 · Weeks 4–8
Progressive Strengthening
Deep neck flexor and cervical stabilizer strengthening, alongside general conditioning to rebuild fitness lost during the layoff — compounded, in Eichel's case, by nearly a full season away from game action.
Phase 3 · Months 2–3
Non-Contact Training
Full skating, shooting, and conditioning work without contact. Clearance for this phase depends heavily on imaging confirming the implant has settled and the surrounding tissue has healed as expected.
Phase 4 · Months 3–4
Contact Clearance
Full-contact practice, the last and most consequential gate before a game return — a hit to the neck at this stage carries stakes well beyond a normal sports injury.
Phase 5 · Months 4+
Return to Competition
Game minutes, ramped conditioning, and — for a player who had missed nearly a full calendar year of hockey — rebuilding game rhythm and timing as much as physical readiness.
Return-to-Play Timeline
Eichel's return came close to the optimistic end of his own projections — itself notable, since ADR's appeal was precisely that it offered a shorter recovery than fusion.
Eichel debuted for the Golden Knights on February 25, 2022 — roughly three months after surgery, and about eleven months since his last NHL game. The following year, in 2022–23, he helped Vegas win the Stanley Cup, the first championship of his career, in what became one of the more prominent success stories for a surgery that had barely been tested at the professional hockey level.
What the Research Says
Cervical ADR is well-studied in the general spine surgery literature, but data specific to elite contact-sport athletes was thin at the time of Eichel's procedure:
- Motion preservation is ADR's core clinical advantage over fusion, with studies in the broader patient population showing better maintained neck range of motion and less stress transferred to adjacent discs.
- Recovery timelines for ADR are generally shorter than fusion, where surgeons wait for solid bone growth before clearing higher-impact activity — often six months or more — versus the three-to-four-month window Eichel and his surgical team targeted.
- Long-term contact-sport outcomes were, at the time, largely unestablished; Eichel's case became one of the first widely followed data points for how the procedure holds up under repeated physical contact, and his subsequent NHL career has been read by other players and teams as an encouraging signal.
The Verdict
Jack Eichel's injury was serious enough to threaten the trajectory of his career — not through a single collision, but through a chronic structural problem that put him at odds with his own franchise over how to fix it. The dispute cost him the Sabres' captaincy and, ultimately, his time in Buffalo altogether.
The surgery he pushed for was unproven at the NHL level, which made the decision genuinely uncertain rather than simply aggressive. The outcome — a return inside his own optimistic timeline, followed by a Stanley Cup less than two years later — is one of the more consequential validations of a modern surgical option in professional sports, and a reminder that "no precedent" is not the same as "no viable path."
Sources
- "Jack Eichel Reportedly to Have Surgery on Neck Injury After Trade to Golden Knights." Bleacher Report. 2021. bleacherreport.com
- "Jack Eichel Undergoes Disk Surgery for Neck Injury After Trade to Golden Knights." Bleacher Report. November 2021. bleacherreport.com
- "Eichel disk surgery successful, Golden Knights say." NHL.com. November 2021. nhl.com
- "Eichel skates with Golden Knights first time since neck surgery." NHL.com. 2022. nhl.com
- "How Jack Eichel's surgery decision could become the new standard for hockey players." ESPN. 2022. espn.com
- "Jack Eichel's Neck Surgery Is No Problem for the Golden Knights — But When Might He Return? A Surgeon Helps Explain." National Spine Health Foundation. 2021. spinehealth.org
How Jack Eichel's Surgery Decision Could Become the New Standard for Hockey Players
ESPN
→ Read articleDisclaimer: This analysis is based on publicly available information and published medical literature. It is not a diagnosis of the athlete's condition, and the actual injury, severity, rehabilitation plan, and return-to-play timeline may differ.