Changes in sagittal balance following corrective osteotomy for lumbar degenerative kyphosis

doi:10.3969/j.issn.2095-4344.2016.04.020

Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (4): 564-570.doi: 10.3969/j.issn.2095-4344.2016.04.020

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Changes in sagittal balance following corrective osteotomy for lumbar degenerative kyphosis

Ren Zhou-liang¹, Zhu Song-qing², Liang Wei-dong¹, Sheng Wei-bin¹, Sheng Jun¹

¹Department of Spine Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; ²Department of Spine Surgery, Six Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China

Received:2015-12-19 Online:2016-01-22 Published:2016-01-22
Contact: Sheng Wei-bin, M.D., Chief physician, Professor, Doctoral supervisor, Department of Spine Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
About author:Ren Zhou-liang, Studying for master’s degree, Department of Spine Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
Supported by:
the Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2014211C026

Abstract

Abstract:

BACKGROUND: At present, more and more scholars pay attention to the influence of spine and pelvis sagittal balance on the quality of life of patients. Postoperative changes in spine imaging parameters following corrective osteotomy for lumbar degenerative kyphosis have not been reported.
OBJECTIVE: To evaluate postoperative changes in sagittal balance following corrective osteotomy for lumbar degenerative kyphosis.
METHODS: We retrospectively analyzed 35 consecutive lumbar degenerative kyphosis patients treated with posterior osteotomy fixation in the First Affiliated Hospital of Xinjiang Medical University from February 2012 to December 2014. Imaging parameters were measured before fixation, immediately after fixation and during final follow-up.
RESULTS AND CONCLUSION: (1) There were significant differences between preoperative and postoperative parameters except for pelvic incidence angle (P < 0.05). (2) There were significant differences between postoperative and last follow-up parameters except for Cobb angle, pelvic incidence angle, thoracic kyphosis angle and the thoracolumbar kyphosis (P < 0.05). (3) Pelvic tilt angle was negatively correlated with lumbar lordosis after fixation (r=-0.610, P < 0.001). Thoracic kyphosis was positively correlated with lumbar lordosis (r=0.598, P < 0.001). (4) Results suggested that lumbar sagittal contour can be significantly improved by corrective osteotomy for lumbar degenerative kyphosis. Simultaneously, reciprocal changes in the adjacent areas such as thoracic spine and pelvis occur to adapt to the new sagittal balance.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Ren Zhou-liang, Zhu Song-qing, Liang Wei-dong, Sheng Wei-bin, Sheng Jun. Changes in sagittal balance following corrective osteotomy for lumbar degenerative kyphosis[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(4): 564-570.

Figures/Tables 5

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Changes in sagittal balance following corrective osteotomy for lumbar degenerative kyphosis

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