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. 2015 Sep;30(9 Suppl):102-6.
doi: 10.1016/j.arth.2015.03.046. Epub 2015 Jun 3.

Accuracy of Fluoroscopic Guided Acetabular Component Positioning During Direct Anterior Total Hip Arthroplasty

Eric M Slotkin  1 , Preetesh D Patel  2 , Juan C Suarez  2
Affiliations

Accuracy of Fluoroscopic Guided Acetabular Component Positioning During Direct Anterior Total Hip Arthroplasty

Eric M Slotkin et al. J Arthroplasty. 2015 Sep.

Abstract

Acetabular component malposition contributes to increased complications and early revision. Supine positioning during direct anterior approach (DAA) THA facilitates the use of fluoroscopy to improve component positioning. This study evaluated the accuracy of acetabular component orientation using intraoperative fluoroscopy in DAA THA. A total of 780 surgeries by two surgeons were retrospectively reviewed over a 3-year period. Ranges for abduction (30°-50°) and version (5°-250) were employed. Overall, 92% fell within the targeted abduction range, 93% fell within the targeted anteversion range, and 88% met both criteria. The accuracy of component positioning for combined abduction and anteversion improved yearly (79.2%, 2011; 90.9%, 2012; and 95.6%, 2013). Fluoroscopy in DAA THA is a useful tool to improve acetabular component orientation, though a learning curve exists with its interpretation.

Keywords: accuracy; complication; component position; fluoroscopy; hip arthroplasty.

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