Cervical Laminoplasty for Multilevel Cervical Myelopathy

Table 1

Evaluation system for cervical myelopathy (compiled by the Japanese Orthopedic Association [11]).

Section score
	Points
(I) Upperextremity function
Impossible to eat with either chopsticks or spoon	0
Possible to eat with spoon, but not with chopsticks	1
Possible to eat with chopsticks, but inadequate	2
Possible to eat with chopsticks, but awkward	3
Normal	4
(II) Lower extremity function
Impossible to walk	0
Need cane or aid on flat ground	1
Need cane or aid on stairs	2
Possible to walk without cane or aids, but slow	3
Normal	4
(III) Sensory
A Upper extremity
Apparent sensory loss	0
Minimal sensory loss	1
Normal	2
B Lower extremity
Apparent sensory loss	0
Minimal sensory loss	1
Normal	2
C Trunk
Apparent sensory loss	0
Minimal sensory loss	1
Normal	2
(IV) Bladder function
Urinary retention or incontinence	0
Severe dysuria (sense of retention, straining)	1
Slight dysuria (pollakiuria, retardation)	2
Normal	3

Normal condition = total of best score (I + II + III + IV) = 17 points.