alexa Abstract | Application of one stage posterior approach osteotomy with screw rod fixation and cage inserting anteriorly in late kyphosis deformity

Biomedical Research
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Research Article Open Access

Abstract

To determine the effectiveness of the application of one stage posterior approach osteotomy with screw rod fixation and cage inserting anteriorly in late kyphosis deformity. 39 cases of late kyphosis deformity treated with one stage posterior approach osteotomy with screw rod fixation and cage inserting anteriorly were retrospective reviewed. The height of anterior and posterior margin of vertebral body, local sagittal Cobb angle and vertebral wedge angle pre and post-operation were measured. All cases were followed up for 24-84 months (average of 32 months). The height of anterio margin of vertebral body pre-operation was 0.8575 ± 0.742 cm, while it was 2.675 ± 1.615 cm at latest follow up, which was significantly increased. The height of posterior margin of vertebral body was 2.878 ± 1.701 cm, while it was 2.805 ± 1.576 cm, at latest follow up, which was not significantly different compared with the results pre-operation. The Cobb angle of kyphosis at latest follow up post -operation was 11.988 ± 5.474°, which was significantly different compared with the results pre-operation. The average correction rate of kyphosis at latest follow up was 71.1%. The trauma vertebral wedge angle was 31 ± 9.899° pre-operation and significantly decreased at 6.062 ± 7.06° post-operation. 33 cases with spinal injury were classified according to Franke 1 value system. One stage posterior approach osteotomy with screw rod fixation and cage inserting anteriorly is an effective surgical procedure for the treatment of the late kyphosis deformity. The long-term effect is reliable.

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Author(s): Jie Liu Lei Cao Shifang Guo Hanguo Zhang Wen Xue Zongru He Yaowen Qian

Keywords

Late kyphosis deformity, Thoracolumbar spine, Vertebral wedge angle, #

 
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