Evaluation of 3D-printed Porous Titanium Alloy versus Polyetheretherketone (PEEK) Cages in the Surgical Treatment of Multilevel Cervical Degenerative Disease

Evaluation of 3d-printed Porous Titanium Alloy versus Polyetheretherketone (PEEK) Cages in the Surgical Treatment of Multilevel Cervical Degenerative Disease