Expansive open-door laminoplasty secured with titanium miniplates is a good surgical method for multiple-level cervical stenosis

Table 2 The correlation between preoperative condition and JOA score ( N = 104)

Items	Sample sizen(%)	Upper extremities motor function	Lower extremities motor function	Upper extremities sensory function	Lower extremities sensory function	Trunk sensory function	Bladder function	JOA score	Recovery rate
Sagittal compressive ratio^a	0.56 ± 0.06	0.06	−0.01	0.01	−0.04	−0.05	−0.14	−0.06	0.05
AP compressive ratio^a	0.36 ± 0.03	0.06	−0.01	0.01	−0.04	−0.05	−0.14	−0.06	0.05
Myelomalacia^b		−0.62	0.67	−0.05	1.21	2.36*	−0.08	0.67	−2.10*
No	65(62.5)	1.49 ± 0.90	1.46 ± 0.96	0.88 ± 0.45	0.42 ± 0.49	0.09 ± 0.29	0.22 ± 0.62	4.60 ± 1.99	0.78 ± 0.18
Yes	39(37.5)	1.38 ± 0.74	1.59 ± 0.88	0.87 ± 0.41	0.54 ± 0.51	0.31 ± 0.52	0.21 ± 0.57	4.87 ± 2.02	0.69 ± 0.25

ISSN: 1749-799X