Chinese Journal of Tissue Engineering Research ›› 2018, Vol. 22 ›› Issue (31): 4965-4969.doi: 10.3969/j.issn.2095-4344.0551

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Three-dimensional digital analysis of the trajectory of scaphoid bone

Zhang Zhi-feng1, Li Da-wei2, Zhang Yuan-zhi3, Huang Jian1, Wei Jing4, Wang Xing5, Zheng Lei-gang6   

  1. 1Department of Joint Surgery, 4Second Department of Hand and Foot Microsurgery, the Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China; 2Department of Orthopedics, the Fourth Affiliated Hospital of Inner Mongolia Medical University, Baotou 014030, Inner Mongolia Autonomous Region, China; 3Department of Orthopedics, the Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China; 5Department of Human Anatomy, School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China; 6Inner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine, Hohhot 010020, Inner Mongolia Autonomous Region, China
  • Online:2018-11-08 Published:2018-11-08
  • Contact: Zhang Yuan-zhi, Department of Orthopedics, the Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China Corresponding author: Huang Jian, Department of Joint Surgery, the Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • About author:Zhang Zhi-feng, Master, Attending physician, Department of Joint Surgery, the Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China Li Da-wei, Master, Attending physician Department of Orthopedics, the Fourth Affiliated Hospital of Inner Mongolia Medical University, Baotou 014030, Inner Mongolia Autonomous Region, China Zhang Zhi-feng and Li Da-wei contributed equally to this work.
  • Supported by:

    the Youth Innovation Foundation of Inner Mongolia Medical University, No. YKD2015QNCX043

Abstract:

BACKGROUND: Scaphoid fracture is commonly seen in wrist fracture, but its nonunion rate is high. Therefore, studying trajectory of normal scaphoid bone is of great significance for selecting optimal fixation way and position.

OBJECTIVE: To study the trajectory of normal scaphoid bone, and to provide method for three-dimensional kinematics analysis.
METHODS: Twenty normal adults (n=10 in either sexes) were enrolled, and the right wrist underwent spiral CT scan in neutral, palmar flexion, dorsiflexion at 15, 30, 45 and 60 degrees, radial deviation at 10 and 20 degrees and ulnar deviation at 15 and 30 degrees, respectively. The original DICOM data were imported into Materialise Mimics Innovation Suite 15.0 to reconstruct distal radius and scaphoideum, and three-dimensional registration. The centroid of each bone was measured, and trajectory of scaphoideum was reconstructed to calculate the displacement value.
RESULTS AND CONCLUSION: In palmar flexion and dorsiflexion or radial/ulnar deviation, the distance between centroid of scaphoideum and distal radius was different. In the 60 degrees of dorsiflexion and 30 degrees of ulnar deviation, the displacement was largest. In the 30 degrees of dorsiflexion and 20 degrees of radial deviation, the displacement was smallest. The displacement value in different positions showed significant differences between sexes. In summary, the accurate determination of the centroid of scaphoid bone provides a new scientific method for the reconstruction of scaphoid movement. 

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: Imaging, Three-dimensional, Scaphoid Bone, Anatomy, Tissue Engineering

CLC Number: