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Minerva Biotecnologica 2017 March;29(1):41-9

DOI: 10.23736/S1120-4826.16.02147-9

Copyright © 2016 EDIZIONI MINERVA MEDICA

lingua: Inglese

An accurate method of radiological assessment of acetabular abduction and anteversion angles in three-dimensional reconstruction of multi-slice spiral computed tomography

Xin C. FAN 1, Wen W. FAN 2, Feng Y. WANG 3, Chun L. YU 1, Hai T. ZHU 1, Kai B. WEI 1, Zhen B. MA 4, Feng LIU 1

1 Department of Orthopedics, Taian Center Hospital of Shandong Province, Taian, China; 2 Department of Pediatrics, Women and Children Hospital of Qingdao City, Qingdao, China; 3 Department of Urinary Surgery, The Third People’s Hospital of Qingdao City, Qingdao, China; 4 Department of Radiology, Taian Center Hospital of Shandong Province, Taian, China


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BACKGROUND: The characteristics of acetabular abduction angle and anteversion in three dimensions are still unclear. This study aimed to assess the diagnostic values of acetabular abduction angle and anteversion by three-dimensional reconstruction of multi-slice spiral CT (MSCT).
METHODS: To verify the reliability and accuracy of the acetabular abduction angle and anteversion by using MSCT, both manual and radiological examinations of pelves (N.=30) and acetabula (N.=60) were included in the study. The manual examination was performed with a protractor and a digital goniometer (Protractor). The radiological examination was performed by using the digital X-ray photography (DR) and MSCT (3D). The pelvic anterior plane (PAP) served as a reference plane throughout the study.
RESULTS: No significant difference was found among protractor, DR, and 3D measurement of acetabular abduction angles and anteversion angles [(16.24±4.74)°, (16.44±4.82)° vs. (15.82±4.62)°, P>0.05)]. Comparisons revealed significant positive correlations among protractor, DR, and 3D measurement of acetabular abduction angles and anteversion angles.
CONCLUSIONS: Our study shows a new, reliable diagnostic tool for measuring the acetabular abduction angle and anteversion in THA or other hip surgeries.


KEY WORDS: Bone anteversion - Tomography, spiral computed - Arthroplasty

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