Korean J Bone Metab Search


Korean Journal of Bone Metabolism 2011;18(2):111-117.
Analysis of Osteoporotic Spinal Compression Fractures in Whole Spine Sagittal MR Images
골다공증성 척추 압박 골절의 전 척추 시상면 MRI에서 분석
s: To analyze the fracture type and adjacency of accompanied fractures in acute osteoporotic spinal compression fracture using whole spine sagittal MRI (WS-MRI), and to know the relation of sagittal vertical axis (SVA), body mass index (BMI), and lumbar bone mineral density (BMD).
From June 2007 to December 2010, 167 patients who had acute spinal compression fractures confirmed by WS-MRI divide in three groups. 82 patients (M/F : 25/57) who had acute fractures only were in group 1, 79 patients who had acute and old fractures were in group 2, and 20 patients who had acute fractures after vertebroplasy were in group 3. To analyze the fracture type and adjacency of accompanied fractures in acute osteoporotic spinal compression fractures which combined chronic fracture or vertebroplasty using the WS-MRI and compared with the control group who had no spinal fractures measured the SVA. In all groups, we measured BMI, and BMD.
In WS-MRI, 31 patients in group 1 had L1 which was the most common fracture site. Twenty two patients had chronic fractures and more than 3 remote levels at the acute fracture site in group 2 and especially among there 14 patients have each level in cervicothoracic and lumbar vertebrae. In group 3 had old fracture and adjacent fracture was 14 and 11 patients. Compared with the control group, all groups had increased SVA, especially in group 2 which has acute and chronic compression fractures. They have no significantly difference of BMI in each group, but group 2 and 3 had a significant lower BMD than group 1.
Fourteen patients of coexisting fractures in acute osteoporotic spinal compression fractures with WS-MRI which could be missed in the conventional MRI. Additionally this study suggests that longer SVA causes sagittal imbalance, and BMD is more relative than BMI in refractures of chronic compression fracture patients.
Key Words: Osteoporosis, Sagittal vertical axis, Spinal compression fracture, Whole spine sagittal MR images


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