Skip to main content

Table 1 Patient demographics

From: Segmental motion at the peak of the ossification foci is independent risk factor except for mal-alignment and thick ossification foci for poor outcome after laminoplasty for cervical ossification of the posterior longitudinal ligament: analyses in patients with positive K-line, lordotic alignment, and lower canal occupying ratio

Patient demographics

(n = 72)

Male: Female

50: 22

Age at surgery (years old)

66.5 (31-86)

Follow-up period (month)

52.6 (12-194)

Japanese Orthopedic Association (JOA) score (points)


8.9 (2-15)


12.8 (5.5-17)

 Recovery rate

46.6 ± 35.0%