Chinese Journal of Tissue Engineering Research

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Anatomical measurements of proximal tibia of anterior and posterior cruciate ligament-retaining knee prosthesis

He Pei-heng, Xu Dong-liang, Zuo Jian-wei, Li Shuai-hua, Wa Qing-de   

  1. Department of Joint Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou  510080, Guangdong Province, China
  • Received:2013-03-05 Revised:2013-04-23 Online:2013-06-25 Published:2013-06-25
  • Contact: Xu Dong-liang, Doctoral supervisor, Professor, Chief physician, Department of Joint Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China xdl1234hph@sina.com
  • About author:He Pei-heng☆, Studying for doctorate, Department of Joint Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China hepeiheng1234@sina.com
  • Supported by:

    “5010” Clinical Research Fund of Sun Yat-sen University, No.2010005

Abstract:

BACKGROUND: There are many problems with the present anterior and posterior cruciate ligament-retaining knee prosthesis. Morphological measurements to improve and design bi-cruciate ligament-retaining knee prosthesis, particular in proximal tibia, were less seen in the literature.
OBJECTIVE: To analyze the morphology of proximal tibia with three-dimensional digital models of knee joint, in order to provide reference for improving and designing bi-cruciate ligament-retaining knee prosthesis.
METHODS: Forty volunteers were selected, and they were scanned with CT and MRI. The acquired image data were imported into computer for image segmentation and three-dimensional reconstruction by using MIMICS 10.01 software. Then three-dimensional digital models of the knee joint were imported into Geomagic Studio 11 software. By the knee joint models, the anatomical parameters of anterior and posterior cruciate ligaments on proximal tibia were measured. Also the anatomical parameters of the proximal tibial osteotomy surface were measured after simulation osteotomy.
RESULTS AND CONCLUSION: The whole width of anterior cruciate ligament and posterior cruciate ligament was (14.94±2.56) mm, and the comparison between genders showed that transverse osteotomy width should be increased in male to avoid anterior and posterior cruciate ligament injury. The length of the top of the tibial spine, the base of the tibial spine and the height of the tibial spine were (8.02±1.03) mm, (15.19±1.71) mm and (9.13±0.88) mm, respectively. And the trapezoidal frame was located in the 48%-82% of the anteroposterior diameter. The mediolateral diameter of medial tibial osteotomy surface was smaller than that of lateral tibial osteotomy surface, however, the anteroposterior diameter of medial tibial osteotomy surface was larger than that of lateral tibial osteotomy surface, these results may imply that bi-cruciate ligament-retaining knee prosthesis need an asymmetric prostheses design.

Key words: bone and joint implants, artificial prosthesis, bone tissue engineering, knee prosthesis, anterior and posterior cruciate ligament, tibial spine, proximal tibial osteotomy surface, anatomical measurements, digital mode, other grants-supported paper

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