Skip to main content

Table 5 Previously reported prevalence of C-OPLL and T-OPLL

From: Epidemiology of ossification of the spinal ligaments and associated factors in the Chinese population: a cross-sectional study of 2000 consecutive individuals

Type Authors/reported year Country Race Sample Size Modality Prevalence rate
M (%) F (%) T (%)
C-OPLL Firooznia et al. [39]/1984 USA White 1000 Cervical x-ray NA NA 0.7
Ohtsuka et al. [23]/1987 Japan Asian 1058 x-ray 4.3 2.4 3.2
Shingyouchi et a [18]/1996 Japan Asian 4802 Cervical x-ray NA NA 4.1
Kim et al. [25]/2008 Korea Asian 11,774 Cervical x-ray 0.79 0.45 0.6
Yoshimura et al. [24]/2014 Japan Asian 1562 Cervical x-ray 3.2 1.3 1.9
Sohn et al. [26]/2014 Korea Asian 3240 Thyroid CT 8.8 4.2 5.7
Fujimori et al. [15]/2015 USA White 1593 Cervical CT 1.6 0.8 1.3
   Asian 624 Cervical CT 5.8 3.6 4.8
   Hispanic 472 Cervical CT 1.5 3.1 1.9
   Aframerican 326 Cervical CT 2.2 2.0 2.1
Fujimori et al. [16]/2016 Japan Asian 1500 PETCT 8.3 3.4 6.3
Present study China Asian 2000 PETCT 4.12 4.06 4.10
T-OPLL Ono et al. [32]/1982 Japan Asian 8610 Chest x-ray 0.25 0.74 0.56
Ohtsuka et al. [30]/1986 Japan Asian 1058 x-ray 0.9 0.6 0.8
Mori et al. [40]/2014 Japan Asian 3013 Chest CT 1.0 3.0 1.9
Fujimori et al. [16]/2016 Japan Asian 1500 PETCT 1.4 2.0 1.6
Present study China Asian 2000 PETCT 1.57 3.61 2.25
  1. T total, M male, F female, C-OPLL ossification of the posterior longitudinal ligament of the cervical spine, T-OPLL ossification of the posterior longitudinal ligament of the thoracic spine, CT computed tomography, NA not available, PETCT positron emission tomography and computed tomography