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Journal of the Korean Society of Traumatology 2005;18(1):26-32.
Classification of Vertebral Body Fractures with Two-l evel Posterior Column Injuries of the Thoracolumbar Spine
Young-Do Koh, M.D., Hoon Jeong, M.D.*, and Sung-Gu Yeo, M.D.*
Department of Orthopedic Surgery, College of Medicine, Ewha Woman’s University, Seoul, Korea, Department of Orthopedic Surgery, Seoul Red-Cross Hospital, Seoul, Korea*
두 개의 수준을 침범한 후주손상을 동반한 흉요추부 추체 골절의 분류
이화여자대학교 의과대학 정형외과학교실, 서울적십자병원 정형외과*
We evaluate the characteristics of vertebral body fractures in two level flexion-distraction injuries of the thoracolumbar spine Methods: The findings of radiographs, computed tomographs, and MRIs of 43 patients with flexion-distraction injuries combined with vertebral body fractures were retrospectively evaluated. We divided the patients with bursting fractures into two groups, the distractive group (posterior vertebral height ratio >1) and the compressive group (vertebral height ratio <1). Results: There were 23 compression fractures and 20 bursting fractures. In bursting fractures, the distractive group had 5 cases, and the compressive group 15 cases. In 24 cases (55.8%), the interspinous distances were widened. The average of the canal encroachment was 4% in the distractive group and 40% in the compressive group. At last follow-up, the average loss of correction was 2.0 degree in compression fractures and 2.7 degree in bursting fractures. Conclusion: The configurations of vertebral body fractures in flexion-distraction injuries of the thoracolumbar spine were varied as to the location of the axis of flexion. Because bursting fractures in flexion-distraction injuries had distractive or compressive features, one should consider that in establishing operative plan.
Key Words: Thoracolumbar spine; Flexion-distraction injury; Vertebral body fracture
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