中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (53): 7992-7997.doi: 10.3969/j.issn.2095-4344.2016.53.013

• 骨与关节临床实践 clinical practice of the bone and joint • 上一篇    下一篇

数字三维影像测量模型在复杂长骨骨折修复中的应用:随机对照、6个月随访、临床试验方案

赵子春,李钊伟,唐保明,郭启发   

  1. 青海大学附属医院创伤骨病科,青海省西宁市 810016
  • 修回日期:2016-10-28 出版日期:2016-12-23 发布日期:2016-12-23
  • 通讯作者: 赵子春,青海大学附属医院创伤骨病科,青海省西宁市 810016
  • 作者简介:赵子春,男,1972年生,副主任医师。

Digital three-dimensional imaging models for repair of complex long bone fractures: study protocol for a randomized controlled trial with 6-month follow-up

Zhao Zi-chun, Li Zhao-wei, Tang Bao-ming, Guo Qi-fa   

  1. Department of Orthopedics Trauma, Affiliated Hospital of Qinghai University, Xining 810016, Qinghai Province, China
  • Revised:2016-10-28 Online:2016-12-23 Published:2016-12-23
  • Contact: Zhao Zi-chun, Department of Orthopedics Trauma, Affiliated Hospital of Qinghai University, Xining 810016, Qinghai Province, China
  • About author:Zhao Zi-chun, Associate chief physician, Department of Orthopedics Trauma, Affiliated Hospital of Qinghai University, Xining 810016, Qinghai Province, China

摘要:

文章快速阅读:



文题释义:
复杂长骨骨折:发生于四肢长骨,由于外伤或疾病所引起的骨结构的完整性或连续性受到破坏,以疼痛、肿胀、功能障碍、畸形及可扪及骨擦音、异常活动等为主要临床表现的四肢长骨骨折。
三维测量:顾名思义就是被测物进行全方位测量,确定被测物的三维坐标测量数据。其测量原理分为测距、角位移、扫描、定向四个方面。根据三维技术原理研发的仪器包括拍照式(结构光)三维扫描仪、激光三维扫描仪和三坐标测量机三种测量仪器。
 
摘要
背景:复杂长骨骨折在进行内固定修复时,内固定物难以完全贴合骨面,常造成固定物不牢靠,影响修复效果。CT扫描建立数字化三维测量模型,可在很高程度上反映出骨折的发生部位,发生程度,损坏情况等,可指导内固定物的精确定位。因此,文章认为,从安全性的角度来看,在修复复杂长骨骨折时,建立一个数字化的三维测量模型来辅助内固定物固定能取得更好的修复效果。
目的:观察数字三维影像测量模型在复杂长骨骨折修复中的应用情况。
方法:研究为前瞻性、单中心、随机对照、开放性、6个月随访临床试验方案,在中国青海省西宁市,青海大学附属医院创伤骨病科完成。将纳入试验的复杂长骨骨折患者63例随机分为2组,其中观察组32例采用CT扫描建立数字化三维测量模型辅助进行内固定修复,而对照组31例进行传统内固定修复,随访6个月。试验的主要观察指标为两组患者术后6个月疗效总有效率;试验的次要观察指标为:①术前、术后6个月Harris评分评价内固定修复后患者髋关节功能;②术前、术后6个月骨折处X射线片观察患者骨折愈合情况;③术前、术后6个月目测类比评分评价患者疼痛缓解情况;④术后6个月随访记录住院时间评价患者病情恢复情况;⑤术中手术时间评价手术完成速度;其他观察指标为术后6个月患者不良反应发生率。试验经中国青海省西宁市青海大学附属医院院伦理委员会批准(NQH14023),研究方案内容符合世界医学会制定的《赫尔辛基宣言》的要求,参与者本人对治疗方案和过程均知情同意,并签署知情同意书。试验于2016年11月12日在北美临床试验注册中心做前瞻性研究注册注册(NCT02964754)。
讨论:试验旨在分析数字三维影像测量模型在复杂长骨骨折修复中应用的可行性,从而为复杂长骨骨折的内固定修复提供一种更精确、安全、可靠的术前规划新方法,以期得到更好的修复效果。

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:
0000-0002-1956-9067(赵子春)

关键词: 骨科植入物, 数字化骨科, 临床试验, 复杂长骨骨折, 数字三维影像, CT扫描, 内固定, 前瞻性, 疗效, Harris评分, 目测类比评分, 不良反应, 随机对照试验

Abstract:

BACKGROUND: During internal fixation for complex long bone fractures, it is difficult to position the internal fixator completely to the contours of the bone surface, often resulting in unstable fixation and affecting the quality of the repair. Digital three-dimensional (3D) models were therefore established based on computed tomography (CT) scans that closely reflected the site and degree of fractures, thereby guiding precise positioning of the internal fixator. From a safety point of view, the digital 3D-derived model was created to ensure that the internal fixator could achieve better repairs of complex long bone fractures.

OBJECTIVE: To investigate the application of digital 3D models for repairing complex long bone fractures.
METHODS: We propose to conduct a prospective, single-center, randomized, controlled, open-label, clinical trial with 6-month follow-up at the Department of Orthopedics Trauma, Affiliated Hospital of Qinghai University, China. Sixty-three patients with complex long bone fractures will be randomized into two groups. In the observation group (n=32), digital 3D models based on CT images will be used to establish internal fixation. In the control group (n=31), patients will undergo conventional internal fixation. All patients will be followed up for 6 months. The primary outcome will be total efficacy at 6 months postoperatively in both groups. The secondary outcomes will be (1) hip function evaluated by Harris scores before and 6 months after surgery; (2) fracture healing observed by plain radiography before and 6 months after surgery; (3) pain relief evaluated by a visual analogue scale before and 6 months after surgery; (4) assessment during the hospital stay and 6 months after surgery to assess recovery of the patient’s condition; (5) operation time to evaluate the speed of operation. Other outcome will be the incidence of adverse reactions at 6 months postoperatively. The study protocol has been approved by the Ethics Committee of Affiliated Hospital of Qinghai University of China, approval number NQH14023. All protocols will be in accordance with Declaration of Helsinki, formulated by the World Medical Association. Written informed consent will be provided by participants. This trial has registered with ClinicalTrials.gov (identifier NCT02964754) on 12 November 2016.
DISCUSSION: This trial will analyze the feasibility of digital 3D models for repairing complex long bone fractures with the aim to provide a new method for accurate, safe, reliable preoperative planning to achieve a better repair effect. 
 

Key words: Tissue Engineering, Hip Joint, Fractures, Bone

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