Chinese Journal of Clinical Anatomy ›› 2021, Vol. 39 ›› Issue (5): 539-545.doi: 10.13418/j.issn.1001-165x.2021.05.008

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Three-dimensional morphological analysis and application research of ankle joint in Chinese normal adults based on CT

Xue Haowen1, Chu Hongyu2, Zuo Xiepeng1, Wu Kehui1, Han Qing1, Cheng Kailiang3, Yang Yanyan3, Zhu Qingsan4   

  1. 1. Department of Orthopedics, Second Hospital, Jilin University, Changchun 130041, China; 2. Department of Gastrointestinal Colorectal Anus Surgery, China-Japan Union Hospital of Jilin University, Changchun 130043, China; 3. Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun 130043, China; 4. Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun 130043, China
  • Received:2020-01-09 Online:2021-09-25 Published:2021-09-29

Abstract: Objective To provide a fundamental basis and morphological database for the design of total ankle arthroplasty (TAA) prosthesis by measuring the ankle joint morphology and analyzing the results in the Chinese population. Methods The computer tomography (CT) images of 191 ankle points (106 in males and 85 in females) were three-dimensional(3D) reconstructed and 32 morphologic parameters were measured such as anterior-posterior inclination angle (APA) and maximal tibial thickness (MTiTh)on the 3D reconstruction model, and the ratios of 3 parameters such as the ratios of the arc length and width of the tibial mortise (MTiTh/TiW) and the trochlea tali (TaAL/TaW) were calculated. Results (1) In terms of gender, there were significant differences in 23 parameters  among the 32 parameters tested (P<0.05). The other 20 parameters in males were found larger than that in females except for following 2 parameters: APA and anterior-posterior gap (APG). (2) Compared with the results of our previous study based on X-ray, there were 8 parameter different  between X-rays and CT reconstruction images except for the following 3 parameters: APG, APA and tibial arc length (TiAL). The results based on X-ray were larger than that in CT reconstruction images. (3) Due to the differences of race and region, the 3D morphological parameters of the ankle joint in normal Chinese adults were different from those of French, Italian, Korean, and Taiwan population. The morphology of the talus differed from that of Egyptian, Greek and north China. Conclusions There was significant differences in the morphological parameters of ankle joints between Chinese adults and Western adults. 

Key words: Ankle joint; Three-dimensional morphological feature; CT data; Arthroplasty, Prosthesis design

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