The purpose of this study was to compare acetabular cup position for 2 cohorts of total hip arthroplasty (THA) patients who had a direct anterior approach.
100 THA cases were performed with an anterior approach using intraoperative fluoroscopy (IF) to aid in cup positioning. Another group of 100 cases underwent THA with an anterior approach without the use of any fluoroscopy. Postoperative abduction and anteversion angles were measured using Martell’s hip analysis software.
Mean abduction angle was 43.2° (standard deviation (SD) = 4.5°) for the IF group versus 37.5°(SD = 7.4°) for cases without IF (p<0.001). 18% more cases with IF fell within the Lewinnek safe zone (p<0.001); however, a similar number of cases had over 50° of abduction. The mean anteversion angles of the two groups were also significantly different (IF 21.8° vs. 24.9°) (p<0.01).
There was significantly less variation in cup position among the cases using IF with regards to abduction.
Hip Int 2017; 27(6): 573 - 577
Article Type: ORIGINAL RESEARCH ARTICLE
AuthorsGens P. Goodman, Nitin Goyal, Nancy L. Parks, Robert H. Hopper Jr., William G. Hamilton
- • Accepted on 01/03/2017
- • Available online on 19/07/2017
- • Published in print on 21/11/2017
This article is available as full text PDF.
- Goodman, Gens P. [PubMed] [Google Scholar]
- Goyal, Nitin [PubMed] [Google Scholar]
- Parks, Nancy L. [PubMed] [Google Scholar] , * Corresponding Author (firstname.lastname@example.org)
- Hopper Jr., Robert H. [PubMed] [Google Scholar]
- Hamilton, William G. [PubMed] [Google Scholar]
Anderson Orthopaedic Research Institute, Alexandria, Virginia - USA