Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (39): 7288-7291.doi: 10.3969/j.issn.2095-4344.2012.39.015

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Average acetabular coverage of femoral head after developmental dislocation of the hip measured by CT three-dimensional reconstruction

Hu Gang-feng1, Qian Ping-yan1, Ding Guo-liang1, Qian Bin1, Hu Xiao-hua2, Wu Jing-tao2   

  1. 1Department of Radiology, Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, Jiangsu Province, China
    2Department of Radiology, Clinical Medical College of Yangzhou University, Yangzhou 225001, Jiangsu Province, China
  • Received:2012-03-14 Revised:2012-05-26 Online:2012-09-23 Published:2012-09-23
  • About author:Hu Gang-feng, Technician in-charge, Department of Radiology, Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, Jiangsu Province, China 1067019959@qq.com

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Abstract:

BACKGROUND: A three-dimensional structure of acetabular and femoral head can be clearly displayed by using three-dimensional reconstruction through volume rendering technique of multi-slice spiral CT, and provide help to measure the average acetabular coverage of femoral head and observe the development change of abnormal acetabulum.
OBJECTIVE: To measure the changes of average acetabular coverage of femoral head in children with developmental dislocation of the hip by multi-slice spiral CT three-dimensional reconstruction for 4 consecutive years.
METHODS: Fifty-three cases of development dislocation children treated with closed reduction and external fixation were included to perform the retrospective analysis. Before the restoration, within 24 hours after restoration, the entire complex after 12, 24, 36 and 48 months, the multi-slice spiral CT scan axial acetabular and image processing system was used to reconstruct and measure the average acetabular coverage of femoral head.
RESULTS AND CONCLUSION: The average acetabular coverage of femoral head after closed reduction was significantly higher than that before treatment (P < 0.01). After followed-up for 4 years, the average acetabular coverage of femoral head was gradually increased after closed reduction, it increased most within 1 year, and closed to the normal control group at the 4th year. The multi-slice spiral CT three-dimensional reconstruction can clearly show the relationship between three-dimensional positiosns, and provide a new mean for the research of the relationship between hips of children with developmental dislocation and the position of femoral head; the average acetabular coverage of femoral head measured by three-dimensional reconstruction after closed reduction is higher than that before treatment.

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