Abstract:

Objective
To measure the acetabular morphology of Chinese on CT three-dimensional (3D) reconstruction image,and provide the evidence on the prevention and treatment of hip diseases.Methods 96 cases (192 sides) of adult hip CT scans were reconstructed,the acetabular index (AA),center-edge(CE),ACE angle,anteversion angle(AVA)，abduction angle(ABA),and vertical diameter(SID) were measured.Results The 　total acetabular index was (8.78 ± 5.34) °,of which male was (7.84 ± 5.55) °and female was (9.60 ± 5.06)°. The total CE was (33.59 ± 5.91) °,of which male was(34.55 ± 6.03) ° and female was(32.78 ± 5.70) °.The total ACE angle was (29.01 ± 5.65) °,of which male was (28.02 ± 5.94) °and female was (29.80 ± 5.30)°.The total AVA was (20.92 ± 5.55)°,of which male was (20.48 ± 5.08)°and female was (21.25 ± 5.89)°.The total ABA  was (51.27 ± 4.16) °,of which  male was (51.71 ± 4.37)°and female was (50.89 ± 3.96)°.The total SID was(53.79 ± 3.92) mm,of which male was (56.55 ± 2.64) mm and female was 〖JP2〗(51.46 ± 3.25) mm.Of the above data,there were statistical differences in the acetabular index,CE angle,ACE angle 〖JP〗and acetabular diameter between men and women(P<0.05),Chinese and foreigners(P<0.05).While there was no statistical difference between the left and right sides(P>0.05). Conclusion There are differences in acetabular morphology between men and women,Chinese and foreigners.Compared with simply using overseas data,it is better to study morphological parameters of native acetabulaum to instruct the preoperative preparation and operation of national total hip arthroplasty surgery.And it is meaningful to design national parameters.

Key words: acetabulum;computed tomography;three-dimensional reconstruction