Prevalence and Distribution of Ossified Lesions in the Whole Spine of Patients with Cervical Ossification of the Posterior Longitudinal Ligament A Multicenter Study (JOSL CT study)
Fig 2
A: Incidence of ossification of the posterior longitudinal ligament (OPLL) at each vertebral and intervertebral level (black bars, vertebral levels; gray bars, intervertebral levels). B: Histograms of the OP-index of the whole spine for male and female patients.