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Table 1 ROM C3–C7 pre- and post-op for all operated patients and for the respective subgroups Bryan, Discover, and Prestige Prosthesis and ROM in healthy volunteers HV

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

ROM ° (SD) HV All patients Bryan Prestige Discover
Pre-op Post-op Pre-op Post-op Pre-op Post-op Pre-op Post-op
C3/4 11.4 (3.4) 8.5 (3.7) 11.3 (3.9) 8.7 (4.0) 10.6 (3.7) 8.6 (2.9) 11.9 (3.2) 8.2 (4.6) 11.4 (5.0)
C4/5 14.9 (4.8) 11.9 (4.7) 13.5 (4.3) 12.5 (5.5) 14.9 (3.8) 13.2 (3.7) 12.6 (3.2) 10.0 (4.5) 12.8 (5.5)
C5/6 12.7 (3.4) 10.1 (4.7) 11.6 (5.4) 10.4 (6.3) 11.3 (5.0) 9.9 (4.3) 12.4 (7.5) 9.9 (3.8) 11.2 (3.9)
C6/7 14.4 (5.8) 7.6 (4.1) 7.4 (4.1) 8.0 (4.7) 7.6 (4.5) 7.5 (4.9) 7.3 (5.0) 7.5 (2.5) 7.1 (3.1)
C3–C7 53.3 (12.7) 38.3 (11.7) 43.4 (8.9) 39.5 (15.3) 44.4 (9.1) 37.7 (8.2) 43.9 (6.8) 37.6 (11.1) 41.5 (11.0)