PEEK Cages versus PMMA Spacers in Anterior Cervical Discectomy: Comparison of Fusion, Subsidence, Sagittal Alignment, and Clinical Outcome with a Minimum 1-Year Follow-Up

<table>Correlation between SSA and CSA after ACD with implantation of Sulcem PMMA spacers. The diagram shows the positive correlation between SSA and CSA in the Sulcem PMMA group indicating that a change in SSA was a significant predictor of a change in CSA. The mean change in SSA was −2.4° and in CSA was −5.2°. ACD: anterior cervical discectomy, CSA: cervical sagittal alignment, PMMA: polymethylmethacrylate, and SSA: segmental sagittal alignment.</table>

The Scientific World Journal

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Figure 4: PEEK Cages versus PMMA Spacers in Anterior Cervical Discectomy: Comparison of Fusion, Subsidence, Sagittal Alignment, and Clinical Outcome with a Minimum 1-Year Follow-Up 

Figure 4 | PEEK Cages versus PMMA Spacers in Anterior Cervical Discectomy: Comparison of Fusion, Subsidence, Sagittal Alignment, and Clinical Outcome with a Minimum 1-Year Follow-Up 