Dr. Ali Rendely provided useful perspective on the Sabres/
Jack Eichel surgery situation during a recent appearance on The Jeff Marek Show. On one hand, Dr. Rendely reinforced that Eichel should probably be able to decide which procedure he prefers. Neck surgery is serious, after all.
That said, Rendely clarifies that a six-month window, if not more, is likely a realistic minimum recovery period for both artificial disc and fusion options. (There were indications that disc replacement could get Eichel back on the ice significantly sooner than fusion, but Dr. Rendely indicates otherwise.) If you have even a fleeting interest in the Sabres/Eichel surgery situation, this interview is easily worth your time.