Skip to main content

Table 1 Comparison of the characteristics of the patients between the two groups

From: Influence of fixed titanium plate position on the effectiveness of open-door laminoplasty for cervical spondylotic myelopathy

Group n Gender Age (years) Bone mineral density (SD) Disease course (months) Follow-up period (months) Open-door segments
Male Female C3-7 C3-6 C4-7
Later mass group 55 31 24 62.5 ± 7.6 − 1.7 ± 0.6 14.6 ± 4.3 19.8 ± 5.1 37 12 6
Lamina group 43 25 18 61.9 ± 7.9 − 1.5 ± 0.4 13.5 ± 4.0 19.3 ± 5.3 30 8 5
t/χ.2 value 0.031 0.381 1.882 1.295 0.473 0.156
P value 0.860 0.703 0.063 0.198 0.637 0.925