Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (7): 1052-1056.doi: 10.3969/j.issn.2095-4344.2017.07.013

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Design and finite element analysis of digital splint

Jiang Zi-wei1, Huang Feng1, Cheng Si-yuan2, Zheng Xiao-hui1, Sun Shi-dong1, Zhao Jing-tao1, Cong Hai-chen2, Sun Han-qiao1, Dong Hang1   

  1. 1Department of Traumatic Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 2Guangdong University of Technology, Guangzhou 510520, Guangdong Province, China
  • Revised:2016-10-28 Online:2017-03-08 Published:2017-04-11
  • Contact: Huang Feng, Master, Chief physician, Department of Traumatic Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • About author:Jiang Zi-wei, M.D., Associate chief physician, Department of Traumatic Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Supported by:

    the Innovation and Strong Hospital Project Fund of the 1st Affiliated Hospital of Guangzhou University of Chinese Medicine: Application and Promotion of Characteristic Diagnosis and Treatment Skills in Lingnan area, No. 2015JY02; Digging and Arranging Traditional Chinese Medicine Project, No. 2016ZY04; the National Famous Traditional Chinese Medicine Experts Heritage Studio Construction Project of State Administration of Traditional Chinese Medicine in 2013.

Abstract:

BACKGROUND: Splint fixation was a common treatment for limb fracture, but there were some limitations, such as lack of individual difference, easy to lose and being unable to self-adjusting.

OBJECTIVE: To explore the design method of digital splint and related finite element analysis.
METHODS: Forearms were scanned with CT; periphery parameters were extracted, followed by reverse modeling and modifying. The digital splint models were constructed. Material attribute and mechanical loading were conducted. The limb length, maximum stress and displacement of the bone, soft tissue and splint were calculated by finite element analysis.
RESULTS AND CONCLUSION: The digital splint has favorable tight attaching and balanced stress to skin, and which keeps well stability for the micro-motion fracture ends. Our study indicated that better tight attaching splint could be designed by digital modeling technology. Favorable fracture fixation and mechanical property could be also achieved.

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: Digitization, Splints, Finite Element, Tissue Engineering

CLC Number: