关键词: 第3~7肋,  , 骨折, 影像学测量, 解剖型固定

Abstract:

Objective   To observe and measure morphological parameters of rib 3 to 7 among Chinese adults, and provide anatomical basis for modifying fixation skill and improving recovering from rib fracture. Methods    Chest CT data of 113 patients were randomly collected from Sep. 2013 to Feb. 2014 and used to reconstruct three-dimensionally the thorax, followed with the measurement of anatomical parameters of bilateral rib 3~7.    Results    The average width (mm) of lateral area of rib 3~7 were 12.79,13.69,14.47,14.79 and 15.13.The thickness (mm) of upper edge were 5.32, 5.28, 5.46, 5.34 and 5.45. The thickness (mm) of lower edge were 5.12, 5.37, 5.38, 5.35 and 5.37. The anterior twist angle （°） were 26.69, 26.22, 25.70, 25.16 and 24.45. The posterior twist angle（°） were 10.25, 9.87, 10.39, 9.46 and 9.30, respectively. Parameters demonstrated significance statistically between male and females groups（P＜0.05), but no significance among different age groups（P>0.05).    Conclusions    CT reconstruction is valuable for analyzing anatomic features of adult ribs, designing and manufacturing new surgical fixation devices. 

Key words: Rib 3~7, Fracture, Imaging measure,  , Anatomically fixation