Fatty infiltration of the cervical extensor musculature, cervical sagittal balance, and clinical outcomes: An analysis of operative adult cervical deformity patients

Peter G. Passias, Frank A. Segreto, Samantha R. Horn, Virginie Lafage, Renaud Lafage, Justin S. Smith, Sara Naessig, Cole Bortz, Eric O. Klineberg, Bassel G. Diebo, Daniel M. Sciubba, Brian J. Neuman, D. Kojo Hamilton, Douglas C. Burton, Robert A. Hart, Frank J. Schwab, Shay Bess, Christopher I. Shaffrey, Pierce D. Nunley, Christopher P. Ames