Table 3

Radiotherapy data by study group.

ParameterTitaniumCFR-PEEK P
Artifact volume, mm3 73.4 ± 50.320.0 ± 20.7<0.001 a
Artifact volume per level, mm3 13.2 ± 8.813.35 ± 3.24<0.001 a
Time taken to contour artifacts, min17.3 ± 5.849.60 ± 7.170.049 a
No. of spinal levels covered for radiotherapy5.97 ± 2.405.50 ± 2.420.559a

  • Abbreviation: CFR-PEEK, carbon fiber-reinforced polyetheretherketone.

  • Note: Data presented as mean ± SD.

  • ↵a Mann-Whitney U test was performed.