科研之友
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摘要
Background: The aim of this study was to provide valid data for a plate-screw fixation model for fractured posterior-anterior columns of the acetabulum. Material/Methods: Nineteen cadaveric bony hemi-pelvis specimens were obtained and 50 healthy adults were enrolled. The modified Stoppa approach and computed tomography (CT) imaging were used to collect the measured parameter data of the module. Results: The measured parameter data were as follows: OP, 0.96 +/- 0.32 cm in females and 0.92 +/- 0.16 cm in males (P>0.05); PI, 0.98 +/- 0.28 cm in females, and 0.75 +/- 0.23 cm in males (P>0.05); angle theta, 59.68 degrees +/- 6.28 degrees in females and 56.75 degrees +/- 3.22 degrees in males (P>0.05); and angle theta, 41.27 degrees +/- 2.76 degrees in females and 34.31 degrees +/- 2.78 degrees in males (P< 0.05). The corresponding CT image data were as follows: PI, 1.08 +/- 0.22 cm in females and 0.85 +/- 0.27 cm in males (P>0.05); OP, 1.06 +/- 0.29 cm in females and 1.12 +/- 0.24 cm in males (P>0.05); angle theta, 55.33 degrees +/- 4.00 degrees in females and 55. 50 degrees +/- 3.43 degrees in males (P>0.05); and angle phi was 39.21 degrees +/- 2.45 degrees in females and 35.58 degrees +/- 2.31 degrees in males (P< 0.05). No significant difference with respect to sex and side existed between specimens and healthy adults (P>0.05). Conclusions: The measured parameter data obtained in healthy adults and cadaveric specimens provided an anatomic basis for the designation of the guide module, and thus confirmed the accuracy and safety of screw placement in fractured columns of the acetabulum.
