Craiovan, Benjamin and Renkawitz, Tobias and Weber, Markus and Grifka, Joachim and Nolte, Lutz and Zheng, Guoyan (2014) Is the acetabular cup orientation after total hip arthroplasty on a two dimension or three dimension model accurate? INTERNATIONAL ORTHOPAEDICS, 38 (10). pp. 2009-2015. ISSN 0341-2695, 1432-5195
Full text not available from this repository. (Request a copy)Abstract
Malposition of the acetabular component in total hip arthroplasty (THA) is a common surgical problem that can lead to hip dislocation, reduced range of motion and may result in early loosening. The aim of this study is to validate the accuracy and reproducibility of a single x-ray image based 2D/3D reconstruction technique in determining cup inclination and anteversion against two different computer tomography (CT)-based measurement techniques. Cup anteversion and inclination of 20 patients after cementless primary THA was measured on standard antero-posterior (AP) radiographs with the help of the single x-ray 2D/3D reconstruction program and compared with two different 3D CT-based analyses [Ground Truth (GT) and MeVis (MV) reconstruction model]. The measurements from the single x-ray 2D/3D reconstruction technique were strongly correlated with both types of CT image-processing protocols for both cup inclination [RA(2)=0.69 (GT); RA(2)=0.59 (MV)] and anteversion [RA(2)=0.89 (GT); RA(2)=0.80 (MV)]. The single x-ray image based 2D/3D reconstruction technique is a feasible method to assess cup position on postoperative x-rays. CT scans remain the golden standard for a more complex biomechanical evaluation when a lower tolerance limit (+/-2 degrees) is required.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PLAIN ANTEROPOSTERIOR RADIOGRAPHS; COMPONENT ORIENTATION; VERSION; ANTEVERSION; RELIABILITY; CONTAINMENT; VALIDATION; VALIDITY; POSITION; Cup orientation; Inclination/anteversion; CT-based measurement; 2D/3D reconstruction; Statistical shape model; Total hip arthroplasty; Quality measure; Error analysis |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Aug 2019 13:56 |
| Last Modified: | 12 Aug 2019 13:56 |
| URI: | https://pred.uni-regensburg.de/id/eprint/9450 |
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