Development of a Novel Cervical Deformity Surgical Invasiveness Index

Peter G. Passias, MD; Samantha R. Horn, BA; Alexandra Soroceanu, MD; Cheongeun Oh, PD; Tamir Ailon, MD; Brian J. Neuman, MD; Virginie Lafage, PhD; Renaud Lafage, MS; Justin S. Smith, MD; Breton Line, BS; Cole A. Bortz, BA; Frank A. Segreto, BS; Avery Brown, BS; Haddy Alas, BS; Katherine E. Pierce, BS; Robert K. Eastlack, MD; Daniel M. Sciubba, MD; Themistocles S. Protopsaltis, MD; Eric O. Klineberg, MD; Douglas C. Burton, MD; Robert A. Hart, MD; Frank J. Schwab, MD; Shay Bess, MD; Christopher I. Shaffrey, MD; Christopher P. Ames, MD


Spine. 2020;45(2):116-123. 

In This Article


This is the first study to date to develop a novel surgical invasiveness index specific to a CD population. Extended LOS, operative time and high blood loss were strongly predicted by the newly developed CD invasiveness index, incorporating surgical factors and radiographic parameters clinically relevant for patients undergoing CD corrective surgery. This CD surgical invasiveness index will aid in risk assessment with the goal of improving patient outcomes.