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Table 6 COR mean values pre- and post-op after implantation of a Prestige prosthesis compared with COR in healthy volunteers (COR-HV)

From: In cervical arthroplasty, only prosthesis with flexible biomechanical properties should be used for achieving a near-physiological motion pattern

Segment COR-HV COR pre-op COR post-op
x y x y x y
C6/7 Mean 4.9 − 1.1 7.7 − 6.9 7.7 − 2.9
SD 3.2 2.6 6.3 10.7 9.3 18.7
p    0.163 0.054 0.289 0.718
C5/6 Mean 4.8 − 4.0 7.6 − 5.2 6.4 − 3.3
SD 2.8 3.1 4.8 4.7 3.5 5.4
p    0.072 0.479 0.216 0.660
C4/5 Mean 4.8 − 3.8 7.2 − 4.7 5.6 − 7.7
SD 2.3 3.7 3.5 2.3 3.3 2.7
p    0.052 0.078 0.511 0.014
C3/4 Mean 4.8 − 5.8 7.6 − 4.5 5.0 − 9.4
SD 2.3 5.6 3.4 2.9 4.6 3.3
p    0.022 0.153 0.881 0.090