The aim of this study was to evaluate the reproducibility of @entity79 ( @entity79 ) measurements of the periprosthetic bone in @entity1 with hemispherical acetabular cups in @entity572 ( @entity572 ). Thirty @entity1 were treated for primary @entity571 with @entity572 . Dual-energy X-ray absorptiometry (DXA) scanning was performed with a pencil-beam bone densitometer (Norland XR-36). Accuracy and reproducibility was determined by double measurements of @entity79 in four regions of interest (ROI). The influence of @entity1 postures including various pelvic inclination angles was evaluated as well. Pitman test for a combined netROI revealed a standard deviation ratio of 3.2 for the anterio-posterior scans related to the lateral position. The @entity10970 showed a high intraobserver agreement. With pelvic tilt increasing until 20 degrees , the precision of DXA scanning decreased. In conclusion, reproducibility of DXA scanning was high. This study demonstrated that the @entity1 can be scanned in the supine position, and @entity79 measurement of the periacetabular bone can be performed using the Wilkinson model with four rectangular ROIs.

DXA scanning of acetabulum in XXXX with @entity572 .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity571 :: ('MESH:D010003', 'Disease') :: ['osteoarthrosis'] @entity10970 :: ('MESH:D012872', 'Disease') :: ['Wilkinson ROIs'] @entity79 :: ('MESH:D001847', 'Disease') :: ['bone mineral density', 'BMD'] @entity572 :: ('MESH:D006617', 'Disease') :: ['cementless THA', 'THA', 'cementless total hip arthroplasty']
@entity1 :: (9606,Species) :: ['patients']
