The Morphological Study Of The Acetabulum With Three-dimensional Reconstruction

objective : Measuring acetabular morphous of Chinese on CT three-dimensional(3D) reconstruction image , we provide morphological data of acetabulum, which to guide the design and development of acetabular prosthesis of natives. Meanwhile, comparison between men and women, the left and right sides ,Chinese and foreigners are also studied, and provide the evidence on the prevention and treatment of hip disease.Methods: 96 cases (192 sides) of adult hip CT scans were reconstructed, the upper acetabular index, upper CE angle, ACE, AVA, ABA and 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)°, while 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 (51.46±3.25) mm. Of the above data, there were statistical differences in the acetabular index, CE angle, ACE angle and acetabular diameter between men and women, natives and foreigners. While there was no statistical difference between the left and right sides.Conclusions: There are differences in acetabular morphology between men and women, Chinese and foreigners. Comparing with simply applying overseas data, studying morphological parameters of native acetabulaum makes it better for us to instruct the preoperative preparation and operation of national total hip arthroplasty surgery. And it is meaningful to design national prosthesis.