Fig 1.
CT images of a patient with ossification of the posterior longitudinal ligament (OPLL).
This 60-year-old female has OPLL at C5, 5–6, 6 (A), T5, 5–6, 6 6–7,7 (B, C) L1-2 and L5-S1 (D). Her OS index is 9.
Table 1.
Demographic data of the patients with OPLL (case) and the control.
Table 2.
Comparison of the biomarkers between the patients with OPLL (case) and the controls.
Fig 2.
The relationship between the serum concentration of Pi and the OS index in the OPLL group.
A negative correlation was found. (p<0.001, r = -0.51).
Table 3.
Demographic data of the progression group and the non-progression group.
Table 4.
Comparison of the biomarkers betweeen the progression group and the non-progression group.
Fig 3.
The relationship between the average length of OPLL progression per year and the serum concentration of hs-CRP in the OPLL group.
A weak positive correlation was found. The data showed statistical significance (p = 0.045, r = -0.36).