Modic changes in the cervical spine: prospective 10-year follow-up study in asymptomatic subjects

Area of Science:

• Radiology
• Spinal Imaging
• Orthopedics

Background:

• Modic changes represent bone marrow signal alterations on MRI, often associated with degenerative disc disease.
• The natural history and development of Modic changes in the cervical spine among asymptomatic individuals are not fully understood.

Purpose of the Study:

• To prospectively investigate the development and progression of Modic changes in the cervical spine over a ten-year period in initially asymptomatic healthy subjects.
• To identify factors associated with the development of new Modic changes and their relationship with clinical symptoms and disc degeneration.

Main Methods:

• A prospective follow-up MRI study involving 223 initially asymptomatic healthy volunteers who underwent a second MRI after a mean of 11.6 years.
• Classification of Modic changes into types 1, 2, and 3, and evaluation of their association with age, gender, pre-existing disc degeneration, and clinical symptoms (neck pain, arm numbness/pain, shoulder stiffness).

Main Results:

• Modic changes were observed in 13.9% of subjects at follow-up, with type 2 being the most frequent.
• Newly developed Modic changes were significantly associated with older age (≥ 40 years), male gender, and pre-existing disc degeneration.
• Modic changes at follow-up showed a significant association with arm numbness or pain, but not with neck pain or shoulder stiffness.

Conclusions:

• Type 2 Modic changes are the most common development in the cervical spine over a decade in asymptomatic individuals.
• Age, male gender, and pre-existing disc degeneration are significant predictors for the development of new Modic changes.
• The presence of Modic changes is associated with specific clinical symptoms like arm numbness or pain, highlighting their clinical relevance.