Open-door laminoplasty for multilevel cervical spon-dylotic myelopathy: Good outcome in 12 patients using suture anchor fixation

Figures & data

Figure 1. The insert (A) shows a holed lateral mass screw and a non-absorbable stitch. The sutures introduced previously are tied tightly to keep the lifted lamina open (B).

Figure 2. Comparison of postoperative and postoperative axial CT scans revealed widening of the spinal canal after unilateral open-door laminoplasty using suture anchor fixation.

Table 1.  Patient demographic data and clinical outcomes

				Nurick score		JOA score
Patient no.	Age (years)	Sex	Level of surgery	preop.	postop.	preop.	postop.	Recovery rate of JOA score (%)	Complications
1	66	M	C3–6	4	2	3	11	57
2	56	F	C3–7	3	2	8	13	56
3	59	F	C3–6	4	2	5	12	58
4	62	M	C3–6	3	2	9	13	50
5	63	M	C3–6	3	1	8	15	78
6	63	F	C3–7	3	2	7	12	50	Transient C5 palsy
7	65	M	C3–6	3	1	8	14	67
8	68	M	C3–6	4	3	2	10	53
9	58	M	C3–6	3	1	6	14	73
10	57	F	C3–6	4	2	2	11	60
11	65	F	C3–6	2	1	12	15	60
12	62	M	C3–7	3	1	9	14	63

Table 2.  Comparison of axial CT scan and radiographic parameters before and after surgery

Cervical spine	Before surgery	After surgery	Change (%)	P-value
Mean diameter in mm (SD)	9.2 (0.8)	14(1.2)	49	< 0.001
Mean ROM in degrees (SD)	48 (4.6)	36 (2.7)	−24	< 0.001