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- W4323921231 abstract "Abstract Introduction Accurate measurement of combined component anteversion (CA) is important in evaluating the radiographic outcomes following total hip arthroplasty (THA). The aim of the present study was to evaluate the accuracy and reliability of a novel radiographic method in estimating CA in THA. Materials and methods The radiographs and computer tomography of patients who underwent a primary THA were retrospectively reviewed, to measure the radiographic CA ( CAr ), defined as the angle between a line connecting the center of the femoral head to the most anterior rim of the acetabular cup and a line connecting the center of the femoral head to the base of the femoral head to allow a comparison with the CA measured on the CT ( CACT ). Subsequently, a computational simulation was performed to evaluate the effect of cup anteversion, inclination, stem anteversion, and leg rotation on the CAr and develop a formula that would correct the CAr according to the acetabular cup inclination based on the best-fit equation. Results In the retrospective analysis of 154 THA, the average CAr_cor, and CACT were 53 ± 11° and 54 ± 11° ( p > 0.05), respectively. A strong correlation was found between CAr and CACT ( r = 0.96, p < 0.001), with an average bias of − 0.5° between CAr_cor and CACT . In the computational simulation, the CAr was strongly affected by the cup anteversion, inclination, stem anteversion, and leg rotation. The formula to convert the CAr to CA_cor was: CA-cor = 1.3* Car − (17* In ( Cup Inclination ) − 31. Conclusion The combined anteversion measurement of THA components on the lateral hip radiograph is accurate and reliable, implying that it could be routinely used postoperatively but also in patients with persistent complaints following a THA. Level of evidence Cross-sectional study, Level III." @default.
- W4323921231 created "2023-03-12" @default.
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- W4323921231 date "2023-03-11" @default.
- W4323921231 modified "2023-09-29" @default.
- W4323921231 title "A novel method for evaluating combined component anteversion in total hip arthroplasty on cross-table lateral hip radiographs" @default.
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- W4323921231 doi "https://doi.org/10.1007/s00402-023-04825-x" @default.
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