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[Imaging study of “shell” phenomenon of thoracolumbar fractures after posterior reduction].

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[Imaging study of “shell” phenomenon of thoracolumbar fractures after posterior reduction].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2017 Aug 01;31(eight):976-981

Authors: Hu H, Lin X, Tan L, Wu C, Zhong Z, Zeng J, Deng J

Summary
Goal: To investigate the imaging traits of vertebral “shell” phenomenon of thoracolumbar fractures after posterior discount and to discover the connection between vertebral “shell” and fracture therapeutic.
Strategies: Between January 2013 and December 2015, the medical information of 116 sufferers with thoracolumbar fractures handled with posterior pedicle screw-rod system discount and inside fixation had been analyzed retrospectively. There have been 72 males and 44 females, aged 22-66 years (imply, 43 years). Harm causes had been visitors accident in 24 circumstances, falling from top in 54 circumstances, bruise in 38 circumstances. Fracture section situated at T 11 in 5 circumstances, T 12 in 38 circumstances, L 1 in 52 circumstances, L 2 in 21 circumstances. There have been 51 circumstances of compressive fracture and 65 circumstances of burst fracture. The sagittal Cobb angle ranged from eight to 27°, with a mean of 15°. Diploma of preoperative spinal compression ranged from 20% to 75%, with a mean of 44%. Bone density measurement confirmed that ordinary bone mass in 30 circumstances, bone loss in 40 circumstances, osteoporosis in 41 circumstances, and extreme osteoporosis in 5 circumstances. The quantity, pathological traits, and imaging regularity of the vertebral “shell” phenomenon had been noticed and analyzed by logistic regression.
Outcomes: All sufferers had been adopted up 11-18 months with a mean of 13 months. A complete of 72 circumstances of vertebral “shell” phenomenon primarily situated within the vertebral anterior column and the tip plate close to the weak space (54/72, 75.zero%). Most of them had been within the irregular form (50/72, 69.5%). The vertebral fracture line was associated to the form of the vertebral physique and the displacement of the vertebral physique after discount. The result of the “shell” may be divided into disappeared kind, diminished kind, and collapse kind, the quantity of vertebral “shell” and its consequence had been the danger components for vertebral fracture therapeutic.
Conclusion: The incidence of vertebral “shell” and nonuion of thoracolumbar fractures after posterior discount are excessive. The principle influencing components are vertebral “shell” consequence and measurement.

PMID: 29806436 [PubMed – indexed for MEDLINE]

Imaging study of "shell" phenomenon of thoracolumbar fractures after posterior reduction | The back pain centre london

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