Development of a Modified Cervical Deformity Frailty Index: A Streamlined Clinical Tool for Preoperative Risk Stratification

Peter G. Passias, Cole A. Bortz, Frank A. Segreto, Samantha R. Horn, Renaud Lafage, Virginie Lafage, Justin S. Smith, Breton Line, Han Jo Kim, Robert Eastlack, David Kojo Hamilton, Themistocles Protopsaltis, Richard A. Hostin, Eric O. Klineberg, Douglas C. Burton, Robert A. Hart, Frank J. Schwab, Shay Bess, Christopher I. Shaffrey, Christopher P. Ames