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Table 3 Cervical Disc measurements; measurements were compiled using weighted averages from studies of adult radiographs and cadavers; however a lack of reporting on age, gender and racial variation limits the value of such data [ 47 , 48 , 51 , 58 , 75 , 76 ]

From: The design evolution of interbody cages in anterior cervical discectomy and fusion: a systematic review

  Average disc height* Anterior disc height (Range)* Midpoint disc height (Range)* Posterior disc height (Range)* Average distracted disc height (Range) Width of disc space* Anterior-posterior diameter* Linear end-plate width
C2/3 3.42 4.07 (3.22-4.92) 4.17 (3.55-4.79) 2.95 (2.09-3.81) 8.5 (6–9) 23.0 (19.0-28.0) 17.9 (13.0-19.0) 15.8
C3/4 3.87 3.42 (2.10-5.52) 4.54 (2.7-5.43) 2.94 (1.70-4.50) 8.8 (6–10) 22.0 (20.0-25.0) 19.8 (17.0-23.0) 17.2
C4/5 4.21 3.28 (1.70-5.32) 4.30 (2.62-4.86) 2.70 (1.66-3.70) 8.8 (8–11) 24.2 (23.0-27.0) 18.8 (16.0-23.0) 17.5
C5/6 3.85 3.30 (2.18-4.92) 4.01 (2.00-4.60) 2.84 (1.4-3.56) 9 (6–13) 25.3 (21.0-30.0) 20.7 (19.0-24.0) 18.5
C6/7 3.37 3.80 (2.79-4.60) 4.63 (2.81-5.3) 2.49 (1.70-3.50) 8.5 (6–11) 28.7 (28.0-35.0) 20.8 (20.0-23.0) 21.8
  1. *columns represent those in which measurements were compiled from weighted averaged.
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