Microscopic imaging of three-dimensional reconstructed scaphoid bone measured by Micro CT

doi:10.3969/j.issn.2095-4344.2014.22.017

Abstract

Abstract:

BACKGROUND: At present, scholars have made many studies on applied anatomy of scaphoid fracture in surgical therapy. Few studies concerned microsurgical imaging of scaphoid bone.

OBJECTIVE: Image data of scaphoid bone were measured using Micro CT to provide anatomic basis for surgical treatment on scaphoid fracture.

METHODS: A total of 80 sides (40 left sides and 40 right sides) of dry scaphoid bone samples of adult Chinese were randomly selected from the Laboratory of Topography, Chengdu Medical College, no matter male or female. A vernier caliper was utilized to measure scaphoid bone and Micro CT was used to scan the samples. Three-dimensional structure of the scaphoid bone was analyzed using the three-dimensional reconstruction system of Micro CT. Moreover, the following data were measured: ① the length of longitudinal axis of scaphoid bone; ② proximal width of scaphoid crest; ③ lumbar width of scaphoid crest; ④ distal width of scaphoid crest; ⑤ height of tubercle of scaphoid bone; ⑥ thickness of tubercle of scaphoid bone; ⑦ width of tubercle of scaphoid bone; ⑧ minimum thickness of scaphoid body; ⑨ thickness of scaphoid waist; ⑩ width of scaphoid waist.

RESULTS AND CONCLUSION: Micro CT three-dimensional images demonstrated that the width and thickness of tubercle of scaphoid bone were close. The tubercle of scaphoid bone was conoid. Scaphoid waist connected to tubercle and body. The anteroposterior diameter of the scaphoid body was obviously larger than the left-right diameter. The bone closed to head articular surface and radial articular surface was thinnest place of the scaphoid bone. Apparent vascular lake was seen on the radial dorsal side of tubercle, waist and body of scaphoid bone. Thus, longitudinal axis and dorsal ridge formed. Measure results were statistically analyzed. Results revealed that no significant difference in each diameter line value measured by Micro CT and data measured by vernier caliper was detected (P > 0.05). No significant difference in measured values of three-dimensional images of each part of left and right scaphoid bones measured by Micro CT was observed (P > 0.05). Results indicated that data measured by Micro CT were precise. The anatomic characteristics of data and images of reconstructed scaphoid bone measured by Micro CT provide theoretical evidence for fixator design after scaphoid fracture in surgical treatment.

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

全文链接：

Key words: hand, scaphoid bone, fractures, bone, imaging, anatomy

CLC Number:

R318

Liu Wei-hua, Tang Xi, Wang Zhi, Li Xin. Microscopic imaging of three-dimensional reconstructed scaphoid bone measured by Micro CT[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(22): 3537-3541.

Figures/Tables 1

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