中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (6): 886-891.doi: 10.12307/2022.171

• 数字化骨科Digital orthopedics • 上一篇    下一篇

数字化软件测量僵硬性马蹄内翻足相关骨标志性指标的可靠和准确度

刘  伟1,李  飞1,李璐兵1,王  雪1,王成伟2   

  1. 1新疆医科大学第六附属医院,新疆维吾尔自治区乌鲁木齐市   830000;2新疆医科大学第三附属医院,新疆维吾尔自治区乌鲁木齐市   830000
  • 收稿日期:2021-05-22 修回日期:2021-05-25 接受日期:2021-06-24 出版日期:2022-02-28 发布日期:2021-12-07
  • 通讯作者: 王成伟,主任医师,教授,博士生导师,新疆医科大学第三附属医院,新疆维吾尔自治区乌鲁木市 830000
  • 作者简介:刘伟,男,1996年生,湖南省安乡县人,汉族,新疆医科大学在读硕士,主要从事足踝外科方向研究。
  • 基金资助:
    国家自然科学基金(81860164),项目负责人:王成伟

Reliability and accuracy of digital software in measuring osseous markers related to stiff clubfoot

Liu Wei1, Li Fei1, Li Lubing1, Wang Xue1, Wang Chengwei2   

  1. 1Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China; 2Third Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • Received:2021-05-22 Revised:2021-05-25 Accepted:2021-06-24 Online:2022-02-28 Published:2021-12-07
  • Contact: Wang Chengwei, Chief physician, Professor, Doctoral supervisor, Third Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • About author:Liu Wei, Master candidate, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    National Natural Science Foundation of China, No. 81860164 (to WCW)

摘要:

文题释义:
僵硬性马蹄内翻足:踝足关节僵直固定于马蹄内翻位,踝足关节跖屈背伸活动范围< 10°,合并有严重软组织挛缩,或并发骨关节结构异常和(或)神经功能障碍者。
数字化:指将许多复杂多变的信息转变为可以度量的数字、数据,再以这些数字、数据建立起适当的数字化模型,把它们转变为一系列二进制代码,引入计算机内部,进行统一处理。在医学领域中的应用即为数字医学,它主要包括三维重建可视化技术、虚拟仿真技术和3D打印技术,在颌面部、脊柱及髋膝关节等领域应用广泛。

背景:僵硬性马蹄内翻足是复杂的三维异常结构畸形,应用二维平片以及体格检查等难以对僵硬性马蹄内翻足畸形程度进行精准评估。
目的:探讨数字化软件测量僵硬性马蹄内翻足相关指标的可靠性和准确性。
方法:前瞻性选择2018年2月至2021年3月在新疆医科大学第六附属医院就诊的14例(20足)僵硬性马蹄内翻足患者,应用mimics软件根据负重位CT图像重建出负重状态下所需骨骼3D模型,运用3-Matic拟合出所需骨骼的中轴线,使用选择性投射功能获取负重正位、侧位及跟骨轴位图像,进行僵硬性马蹄内翻足相关指标测量。利用3-Matic软件测量法与常规X射线测量法对14例僵硬性马蹄内翻足患者进行相关指标测量,比较两组观察指标的统计学差异。研究已通过新疆医科大学伦理委员会审批,所有患者均签署知情同意书。
结果与结论:①两种方法测量的结果:正位片距骨-跟骨角、距骨-第1跖骨角差异无显著性意义(P > 0.05),跟骨-骰骨角差异有显著性意义(P < 0.05);侧位片跟骨-距骨角、胫骨-跟骨角、距骨-第1跖骨角、跟骨-第5跖骨角差异无显著性意义(P > 0.05);跟骨轴位片胫骨-跟骨角差异无显著性意义(P > 0.05);②结果说明,应用3-Matic软件测量可以精准生成所需骨骼中轴线,进而实现相关指标的精确测量,测量时可以选择性投射相关骨骼及其中轴线,消除重影干扰,测量结果稳定可靠,观察时具有直观、清晰等优点。

https://orcid.org/0000-0003-0286-0277 (刘伟) 

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

关键词: 马蹄内翻足, 僵硬性, 3-Matic软件, 数字化

Abstract: BACKGROUND: Stiff clubfoot is a complex three-dimensional abnormal structural deformity. It is difficult to accurately evaluate the deformity degree of stiff clubfoot by two-dimensional plain film and physical examination.  
OBJECTIVE: To explore the reliability and accuracy of 3-Matic software in measuring the related indexes of stiff clubfoot.
METHODS:  Totally 14 patients (20 feet) with stiff clubfoot were prospectively selected from February 2018 to March 2021 in the Sixth Affiliated Hospital of Xinjiang Medical University. The 3D model of bone under weight-bearing condition was reconstructed by Mimics software according to the CT images of weight-bearing position. The central axis of the required bone was fitted by 3-Matic. The images of weight-bearing positive position, lateral position and calcaneal axial position were obtained by selective projection function. The related indexes of rigid equinovarus were measured. The related indexes of 14 adult patients with stiff clubfoot were measured by 3-Matic software measurement and routine X-ray measurement, and the statistical differences of the two groups were compared. This study was approved by the Ethics Committee of Xinjiang Medical University. All patients signed the informed consent.  
RESULTS AND CONCLUSION: (1) There was no significant difference between the positive talus-calcaneal angle and the talus-first metatarsal angle measured by the two methods (P > 0.05), but there was significant difference between the calcaneal-cuboid angle measured by the two methods (P < 0.05). There was no significant difference between the two methods in lateral calcaneal-talus angle, tibial-calcaneal angle, talus-first metatarsal angle, and calcaneal-fifth metatarsal angle (P > 0.05). There was no significant difference in the axial tibial-calcaneal angle between the two methods (P > 0.05). (2) It is concluded that the central axis of the required bone can be accurately generated by using 3-Matic software, and then the accurate measurement of related indexes can be realized. The related bone and its central axis can be selectively projected during the measurement, and the ghosting interference can be eliminated. The measurement result is stable and reliable, and has the advantages of intuitive and clear observation.

Key words: clubfoot, rigid, 3-Matic software, digitization

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