中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (7): 1038-1043.doi: 10.3969/j.issn.2095-4344.0114

• 脊柱植入物 spinal implant • 上一篇    下一篇

测量胸腰椎骨折复位后椎体“空壳”的体积

钟泽莅,胡海刚,林 旭,谭 伦,吴 超,曾 俊,邓佳燕   

  1. 自贡市第四人民医院骨一科,四川省自贡市 643000
  • 出版日期:2018-03-08 发布日期:2018-03-08
  • 通讯作者: 林旭,博士,主任医师,自贡市第四人民医院骨一科,四川省自贡市 643000
  • 作者简介:钟泽莅,男, 1974年生,四川省自贡市人,汉族,1996年泸州医学院临床医学毕业,副主任医师,主要从事脊柱外科、创伤骨科研究。
  • 基金资助:

    四川省卫生与计划生育委员会项目(16PJ596);自贡市科技局项目(2016SF04)

Measurement of vertebral “shell” volume after thoracolumbar fracture reduction  

Zhong Ze-li, Hu Hai-gang, Lin Xu, Tan Lun, Wu Chao, Zeng Jun, Deng Jia-yan   

  1. First Department of Orthopedics, No. 4 People’s Hospital of Zigong City, Zigong 643000, Sichuan Province, China
  • Online:2018-03-08 Published:2018-03-08
  • Contact: Lin Xu, M.D., Chief physician, First Department of Orthopedics, No. 4 People’s Hospital of Zigong City, Zigong 643000, Sichuan Province, China
  • About author:Zhong Ze-li, Associate chief physician, First Department of Orthopedics, No. 4 People’s Hospital of Zigong City, Zigong 643000, Sichuan Province, China
  • Supported by:

     the Health and Family Planning Commission Project of Sichuan Province, No. 16PJ596; the Science and Technology Bureau Project of Zigong City, No. 2016SF04

摘要:

文章快速阅读:

 
 
文题释义:
“空壳”现象:胸腰椎骨折后椎体内骨小梁支架结构受到破坏,在后路复位后虽然椎体外形得到一定恢复,但椎体内易出现腔隙或骨缺损区,即为“空壳”现象。
“空壳”体积测量:采用Mimics软件导入CT薄层扫描数据,运用“CT值重建法”和“逐层填充法”计算“空壳”体积值。
 
摘要
背景:后路钉棒系统复位内固定术常运用于治疗胸腰椎骨折(T11-L2),但目前对于固定后“空壳”现象只着重于影像学的发现,缺乏相关深入的临床研究。
目的:探索胸腰椎骨折复位后椎体“空壳”体积测量的新方法,评价不同“空壳”大小对临床治疗效果的影响。
方法:纳入2013年1月至2015年12月在自贡市第四人民医院骨一科72例胸腰椎单节段骨折行后路内固定复位后存在椎体“空壳”的患者进行回顾性分析。收集临床及影像学资料(X射线片、CT及MRI),记录分析椎体前缘压缩程度、Cobb角、目测类比疼痛评分及复位相关并发症情况;采用Mimics软件测量椎体“空壳”和伤椎的体积,计算空壳/伤椎体积比,随访观察椎体“空壳”愈合情况。

结果与结论:①72例患者中,空壳/伤椎体积比<5%的有16例(A组),5%-10%有30例(B组),>10%的有26例(C组);②“空壳”愈合情况比较:A、B组“空壳”不愈合率显著低于C组(P < 0.05),但A,B组相比,差异无显著性意义(P > 0.05);③伤椎前缘压缩程度比较:A、B、C组患者在复位前及复位后即刻差异无显著性意义(P > 0.05),但在末次随访时A、B组伤椎前缘压缩程度显著高于C组(P < 0.05);④Cobb角比较:3组患者在复位前、复位后即刻及末次随访时组间比较差异均无显著性意义(P > 0.05);⑤目测类比疼痛评分:A、B组在复位后即刻与C组比较,差异无显著性意义(P > 0.05),但在末次随访时要明显优于C组(P < 0.05);⑥并发症发生情况:A组发现1例切口渗液,B组发生1例切口感染和1例螺钉松动,C组发现2例螺钉松动和1例单侧连接棒断裂,3组间比较差异无显著性意义(P > 0.05);⑦结果提示,空壳/伤椎体积比>10%时,“空壳”不愈合发生率高,易出现后期椎体高度的丢失及慢性腰背痛;椎体“空壳”体积的测量对胸腰椎骨折治疗方案的选择及临床预后的判断具有重要意义。

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
ORCID: 0000-0002-4220-7638(钟泽莅)

关键词: “空壳”现象, 人工假体, 胸腰椎骨折, 复位, 后路钉棒系统, 体积测量, 压缩程度, Mimics软件

Abstract:

BACKGROUND: Posterior screw rod system reduction and internal fixation is often used to treat thoracolumbar fractures (T11-L2). However, the “shell” phenomenon is focused on imaging findings and lacks of in-depth clinical research.

OBJECTIVE: To explore the new method of “shell” volume measurement of vertebral body after thoracolumbar fractures reduction, and to evaluate the effect of different “shell” sizes on clinical treatment.
METHODS: From January 2013 to December 2015, 72 patients with thoracolumbar fractures were treated in the No. 4 People’s Hospital of Zigong City retrospectively. The patients with vertebral "shell" were retrospectively analyzed. Clinical and imaging data (X ray, CT and MRI) were collected. Compression degree of anterior border of the vertebral body, Cobb angle, Visual Analogue Scale score and reduction-related complication were recorded and analyzed. The volumes of vertebral “shell” and the injured vertebral body were measured by Mimics software. The volume ratio of shell/injured vertebral body was calculated. The healing of vertebral “shell” was followed up and observed. 
RESULTS AND CONCLUSION: (1) Among the 72 patients, there were 16 cases with a shell/injured vertebral volume ratio of < 5% (group A), 30 cases with the volume ratio of 5%-10% (group B), and 26 cases with volume ratio of > 10% (group C). (2) The “shell” healing: The “shell” nonunion rate was significantly lower in the groups A and B than in the group C (P < 0.05); and significant differences were not determined between groups A and B (P > 0.05). (3) Compression degree of the anterior border of the injured vertebral body: No significant difference was found in groups A, B and C before and right after reduction (P > 0.05). The compression was significantly higher in the groups A and B than in group C at final follow-up (P < 0.05). (4) Cobb angle was not significantly different in groups A, B and C before and right after reduction and during final follow-up (P > 0.05). (5) Visual Analogue Scale score was not significantly different between groups A and B and group C right after reduction (P > 0.05). The Visual Analogue Scale score was significantly better in the groups A and B than in the group C (P < 0.05). (6) Occurrence of complications: In the group A, one case affected incision exudate. In the group B, one case experienced incision infection and one case suffered from screw loosening. In the group C, two cases affected screw loosening, and one case experienced unilateral connecting rod fracture. No significant difference in complications was detected among groups A, B and C (P > 0.05). (7) Results indicate that the “shell” nonunion rate was high when vertebral shell/injured vertebral body volume ratio > 10%; loss of posterior vertebral height and chronic lumbago and back pain easily appeared. The measurement of the volume of vertebral "shell" plays an important role in clinical prognosis and treatment options of thoracolumbar judgment.

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

Key words: Thoracic Vertebrae, Lumbar Vertebrae, Fractures, Bone, Perioperative Period, Tissue Engineering

中图分类号: