Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (31): 5046-5050.doi: 10.3969/j.issn.2095-4344.2015.31.024

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Application of reverse engineering techniques to measure the distance and volume of medial and lateral compartments of human knee joint  

Zhong Jin-ran1, He Jian1, 2, Chen Jian3, Chen Jing-hua1, Lin Ying1, Wang Xiang-bin1, 2   

  1. 1School of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China; 2Fujian Provincial Key Laboratory of Motor Function Rehabilitation, Fuzhou 350003, Fujian Province, China; 3Rehabilitation Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350003, Fujian Province, China
  • Received:2015-05-27 Online:2015-07-23 Published:2015-07-23
  • Contact: Wang Xiang-bin, M.D., Associate professor, School of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China; Fujian Provincial Key Laboratory of Motor Function Rehabilitation, Fuzhou 350003, Fujian Province, China
  • About author:Zhong Jin-ran, Studying for master’s degree, School of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81273819

Abstract:

BACKGROUND: Knee joint is the most complicated structure of human body, and X-ray is often used to reflect the stenosis of knee compartment. However, radiographs are two-dimensional projection of three-dimensional joint structure. Thus, different joint shooting locations can impact the outcomes of measurement, and it is difficult to ensure the accuracy of repeated measurements.
OBJECTIVE: To build three-dimensional model of knee compartment, measure the distance and volume, and provide the basis for subsequent models, biomechanics and relevant clinical studies.
METHODS: Based on the principle of reverse engineering, using CT images of the knee joint and the software of Mimics, three-dimensional model of medial compartment knee structure was reconstructed. After the model was imported and smoothed, the medial and lateral compartment volumes were finally calculated by the software of Geomagic Studio.
RESULTS AND CONCLUSION: Three-dimensional model of the knee compartment, including femur, tibia and fibula, was successfully structured by CT images. The models of knee and knee compartment could be observed at any angle or observed individually, and could be measured. It was discovered that the volume of medial and 
lateral compartments of knee is close, although the joint space width of them is different, which illustrates that the procedure can accurately reflect the degree of knee joint space width in the round by calculating the volume of medial and lateral compartments of knee joint through computer.

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: Knee Joint, Imaging, Three-Dimensional, Biomechanics

CLC Number: