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Table 4 Pre- and post-operative ROM in the young and elderly groups

From: Radiological and clinical outcomes of cervical disc arthroplasty for the elderly: a comparison with young patients

  Pre-operative ROM (degree)a Post-operative ROM (degree)a ΔROMa P valueα
Elderly group 6.1 ± 3.67 5.6 ± 3.49 −0.32 ± 3.93 0.464
Young group 7.8 ± 4.16 8.3 ± 4.17 0.68 ± 3.60 0.308
P valueβ 0.036* 0.001* 0.202  
  1. ROM range of motion; *p < 0.05
  2. ΔROM The difference between pre- and post-operative ROM
  3. aValues are presented as mean ± SD
  4. α Comparison between pre- and post-operative ROM
  5. β Comparison between Elderly and Young group