Posterior fixation including the fractured vertebra for severe unstable thoracolumbar fractures.

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Abstract

[Indexed for MEDLINE] 20. Int Orthop. 2016 Jun;40(6):1253-60. doi: 10.1007/s00264-016-3180-9. Epub 2016 Apr 26. Risk factors of kyphosis recurrence after implant removal in thoracolumbar burst fractures following posterior short-segment fixation. Chen JX(1), Xu DL(1), Sheng SR(1), Goswami A(1), Xuan J(1), Jin HM(1), Chen J(1), Chen Y(1), Zheng ZM(1), Chen XB(1), Wang XY(2). Author information: (1)Department of Orthopaedic Surgery, The Second Affiliated Hospital of Wenzhou Medical University, 109 Xueyuanxi Road, Wenzhou, 325000, China. (2)Department of Orthopaedic Surgery, The Second Affiliated Hospital of Wenzhou Medical University, 109 Xueyuanxi Road, Wenzhou, 325000, China. xiangyangwangspine@126.com. PURPOSE: Our aim was to evaluate the results of short-segment pedicle instrumentation with screw insertion in the fracture level and find factors predicting kyphosis recurrence in thoracolumbar burst fractures. METHODS: We retrospectively analysed 122 patients with thoracolumbar burst fracture who were divided into two groups: kyphosis recurrence and no kyphosis recurrence. Pre-operative radiographic data comprising Cobb angle (CA), regional angle, anterior vertebra height (AVH), upper intervertebral angle, vertebral wedge angle (VWA), pre-anteroposterior A/P approach, superior endplate fracture, load-sharing classification (LSC) score and clinical data including age, visual analogue scale (VAS) score, thoracolumbar injury classification and severity score were compared between groups. T test, Pearson's chi-square and multivariate logistic regression were calculated for variables. RESULTS: CA, VWA and AVH were significantly corrected after surgery. CA changed from 23.7 to 3.0 (p