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MRI Findings after Successful Vertebroplasty

David M. Dansiea, Patrick H. Luetmera, John I. Lanea, Kent R. Thielena, John T. Walda and David F. Kallmesa

a From the Department of Radiology, Mayo Clinic, Rochester, MN



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  		FIG 1. Additional height loss after VP.

A, T1-weighted MRI before L1 VP shows vertebral compression and marrow edema.

B, VP shows cement extending between the endplates of L1.

C, Follow-up T1-weighted MRI shows further vertebral compression primarily involving the anterior and middle aspects of the L1 body.



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  		FIG 2. Severity of marrow edema, before and after VP (n = 51).One-third of vertebrae had moderate or severe edema at follow-up.



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  		FIG 3. Persistent marrow edema after VP.

A, Preprocedure T1-weighted MRI shows partial compression of T8 with severe edema.

B, Lateral radiography at time of VP shows cement filling an intravertebral cleft and adjacent marrow.

C, T1-weighted MRI 1 year after VP shows persistent severe edema as well as a new compression fracture of T9.



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  		FIG 4. Severity of marrow edema according to interval between VP and follow-up MRI (n = 81). At 6 months or more after VP, 11 of 22 vertebrae had some degree of marrow edema.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X