Table 3.

At the segment of the maximal cord compression, correlation analyses among several parameters and each of the four sections as well as the total Japanese Orthopaedic Association (JOA) score were demonstrated. In the results, A, A + P/W and A/W revealed significant correlations with most of the JOA scores, whereas P and P/W were not associated with any sections of the JOA score. (A: anterior, P: posterior, W: width, UEF: upper extremity function, and LEF: lower extremity function).

Correlation Coefficient	JOA-UEF	JOA-LEF	JOA-Sensory	JOA-Bladder Function	JOA-Total
A	0.212 **	0.182 **	0.148 *	0.149 *	0.254 **
P	−0.028	0.010	−0.011	−0.037	−0.008
A + P/W	0.217 **	0.146 *	0.163 *	0.094	0.232 **
A/W	0.213 **	0.172 *	0.151 *	0.139 *	0.245 **
P/W	0.060	−0.020	0.015	−0.062	0.009

A: anterior length, P: posterior length, W: width (at the segment of maximum cord compression), **: p < 0.001, *: p < 0.05.