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. 2013 Mar 19;22(7):1594–1602. doi: 10.1007/s00586-013-2741-5

Table 3.

Preoperative, final follow-up JOA score and neurological recovery rate in each group

Parameter Group LP (n = 36) Group LC (n = 30) Group LCS (n = 32) Statistic value P value
JOA scorea
 Preoperative 8.08 ± 1.13 8.10 ± 1.18 8.16 ± 1.11 0.04 0.96
 Final follow-up 13.97 ± 1.28 13.07 ± 1.23 14.31 ± 1.33 7.81 <0.001
Neurological recovery rate gradeb
 Excellent (≥75 %) 11 1 11 13.58 0.0011
 Good (50–74 %) 24 25 21
 Fair (25–49 %) 1 4 0
 Poor (<25 %) 0 0 0
 Recovery rate (%)c 66.90 ± 11.05 56.55 ± 9.39 70.54 ± 12.80 12.98 <0.001

aANOVA; paired t test: statistically significant differences between preoperative and final follow-up values among the three groups

bCochran-Mantel–Haenszel statistics (based on rank scores)

cANOVA