Kalteis, Thomas and Handel, A. and Baethis, H. and Perlick, L. and Tingart, M. and Grifka, Joachim (2006) Imageless navigation for insertion of the acetabular component in total hip arthroplasty - Is it as accurate as CT-based navigation? JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME, 88B (2). pp. 163-167. ISSN 0301-620X,
Full text not available from this repository. (Request a copy)Abstract
In a prospective randomised clinical study acetabular components were implanted either freehand (n = 30) or using CT-based (n = 30) or imageless navigation (n = 30). The position of the component was determined post-operatively on CT scans of the pelvis. Following conventional freehand placement of the acetabular component, only 14 of the 30 were within the safe zone as defined by Lewinnek et al (40 degrees inclination SD 10 degrees; 15 degrees anteversion SD 10 degrees). After computer-assisted navigation 25 of 30 acetabular components (CT-based) and 28 of 30 components (imageless) were positioned within this limit (overall p < 0.001). No significant differences were observed between CT-based and imageless navigation (p = 0.23); both showed a significant reduction in variation of the position of the acetabular component compared with conventional freehand arthroplasty (p < 0.001). The duration of the operation was increased by eight minutes with imageless and by 17 minutes with CT-based navigation. Imageless navigation proved as reliable as that using CT in positioning the acetabular component.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CUP PLACEMENT; ORIENTATION; DISLOCATION; REPLACEMENT; ALIGNMENT; SYSTEM; PROSTHESIS; WEAR; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Orthopädie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Feb 2021 08:15 |
| Last Modified: | 24 Feb 2021 08:15 |
| URI: | https://pred.uni-regensburg.de/id/eprint/34996 |
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