CT Hounsfield units in cervical ossification of the posterior longitudinal ligament-A comparison with other forms of degenerative cervical myelopathy using propensity score matching

The cervical OPLL patients showed significantly higher segmental HU values and DEXA derived T-scores when compared with the other forms of DCM. In different types of ossification, C5 HU values and global HU values exhibit significant differences. HU values at C6, C7 were significant lower in comparison to C1-C5. Additionally, the level of serum TC, UA and Calcium were significant risk factors for the development of OPLL. This study provides us with a new insight for understanding the bone density of OPLL patients.